Secured MCU Breaker Experts!

The PIC16F917 is a versatile microcontroller widely integrated into modern embedded electronic systems requiring reliable control, compact architecture, and low-power operation. This IC is commonly deployed in industrial instrumentation, automotive electronics, smart metering equipment, consumer appliances, and medical monitoring devices. Its integrated peripherals and onboard memory architecture allow manufacturers to store complex firmware, operational program logic, and critical data directly inside the chip. In many commercial applications, these internal resources are intentionally protected, locked, and sometimes encrypted to prevent unauthorized access to the original source code, binary, or heximal file archive. While this security is important for intellectual property protection, it can also create serious obstacles when systems require maintenance, duplication, or redevelopment years later.

The external Resistor-Capacitor (RC) modes support the use of an external RC circuit. This allows the designer maximum flexibility in frequency choice while keeping costs to a minimum when clock accuracy is not required. There are two modes: RC and RCIO.

In RC mode, the RC circuit connects to OSC1. OSC2/CLKOUT outputs the RC oscillator frequency divided by 4. This signal may be used to provide a clock for external circuitry, synchronization, calibration, test or other application requirements. Figure 4-5 shows the external RC mode connections. The INTOSC and INTOSCIO modes configure the internal oscillators as the system clock source when (SCS) bit of the OSCCON register. user-adjusted via software using the OSCTUNE register (Register 4-2).

2. The LFINTOSC (Low-Frequency Internal Oscillator) is uncalibrated and operates at 31 kHz. The system clock speed can be selected via software.

INTERNAL CLOCK MODEL

The Oscillator module has two independent, internal oscillators that can be configured or selected as the system clock source.

1. The HFINTOSC (High-Frequency Internal Oscillator) is factory calibrated and operates at 8 MHz. The frequency of the HFINTOSC can be user-adjusted via software using the OSCTUNE register (Register 4-2).

2. The LFINTOSC (Low-Frequency Internal Oscillator) is uncalibrated and operates at 31 kHz. The system clock speed can be selected via software using the Internal Oscillator Frequency Select bits IRCF<2:0> of the OSCCON register. an> The INTOSC and INTOSCIO modes configure the internal oscillators as the system clock source when bit of the OSCCON register. See Section 4.6  user-adjusted via software using the OSCTUNE register (Register 4-2).

2. The LFINTOSC (Low-Frequency Internal Oscillator) is uncalibrated and operates at 31 kHz. The system clock speed can be selected via software.

Our “Break IC PIC16F917 Heximal” service is specifically developed to attack, break, and decode highly secured microcontrollers while preserving the integrity of the internal data structure. By combining advanced decapsulate methods with precision electronic analysis, our engineering team can retrieve hidden firmware, extract complete binary and heximal files, and reconstruct the original source code from internal flash, EEPROM, and embedded memory regions. Even when the device contains sophisticated protective mechanisms or encrypted storage configurations, we apply specialized techniques to effectively hack through these barriers and obtain a usable archive of the original program. The recovered information can then be utilized to clone, duplicate, repair, or migrate legacy systems into updated hardware environments without losing functionality or compatibility.

Technically, the recovery workflow involves several layers of analysis. The first stage often includes controlled decapsulation, exposing the silicon die for direct interaction with internal circuitry. This enables accurate retrieval of low-level embedded data from protected memory cells. Once the raw binary or heximal dump has been collected, proprietary decode algorithms are used to organize fragmented files into structured firmware archives. This process allows the original program logic and operational sequences to be reconstructed with high precision. In addition, our engineers verify the integrity of each extracted data file, ensuring the resulting source code accurately reflects the behavior of the original PIC16F917 IC. Through this combination of physical analysis and logical reconstruction, we are able to overcome many forms of locked and secured firmware protection.

For end users, the advantages of recovering PIC16F917 firmware and heximal data are substantial. Manufacturers facing discontinued components, missing development documentation, or supply chain shortages can regain complete access to critical embedded assets without redesigning an entire system. By using our service to attack, decode, and recover protected memory, customers can preserve legacy equipment, accelerate product maintenance, and efficiently duplicate proven designs. Whether the objective is long-term product support, reverse engineering research, or rapid redevelopment, our capability to break and reconstruct PIC16F917 binary archives provides a dependable solution for unlocking valuable electronic intellectual property.

The PIC16F916 microcontroller has become a popular solution in modern embedded electronics because of its compact architecture, integrated LCD controller, low power consumption, and dependable operating stability. It is commonly integrated into industrial automation systems, smart utility meters, access control equipment, automotive instruments, medical monitoring devices, portable electronics, and intelligent household products. As these systems continue operating for many years, companies frequently encounter situations where the original firmware archive, source code documentation, or production program file is no longer available. When a protected or secured MCU becomes the only remaining working unit inside a device, the ability to copy MCU PIC16F916 binary content becomes extremely important for maintenance, repair, product continuation, and hardware duplication. Our specialized service focuses on helping customers retrieve critical embedded data from locked, encrypted, or damaged microcontrollers while preserving operational compatibility with the original equipment.

Our laboratory provides professional firmware extraction and MCU analysis solutions designed specifically for complex embedded recovery projects. Through advanced diagnostic methods, we can attack protected memory structures, break security limitations, and retrieve valuable binary, heximal, flash, EEPROM, and program archive data from secured devices. In many cases, manufacturers need to clone obsolete control boards, duplicate unavailable modules, or restore a missing firmware file from a locked PIC16F916 MCU after the original developer or supplier is no longer reachable. Depending on the chip condition and security level, the process may involve controlled decapsulate procedures, signal tracing, memory mapping, voltage analysis, or customized decoding techniques to access embedded firmware and encrypted data regions. Our engineers work with different types of protected architectures to decode MCU memory organization, recover damaged source code references, and retrieve binary program structures for production continuity and engineering analysis. For heavily secured applications, specialized hardware methods may also be used to hack inaccessible firmware areas and restore corrupted EEPROM or flash archive content without altering the original embedded logic.

The PIC16F916 MCU is widely used in industries where long-term reliability and low operating power are essential. In industrial environments, it controls LCD display systems, temperature monitoring modules, intelligent relay units, and automation interfaces. In automotive electronics, the chip is often embedded inside dashboard controls, sensor communication systems, and compact display modules. Medical equipment manufacturers use this MCU in portable diagnostic instruments and monitoring systems because of its stable performance and compact embedded design. As products age, many companies discover that replacing an entire electronic platform is far more expensive than retrieving the original firmware binary or duplicating the protected MCU program already installed inside existing hardware. Our service helps end users clone functional units, duplicate legacy boards, recover secured memory data, and restore production continuity without redesigning the entire system architecture. Businesses also benefit from maintaining compatibility with older equipment, reducing development delays, and protecting long-term operational investments through reliable firmware recovery and binary extraction services.

Every project involving Copy MCU PIC16F916 Binary services is handled with careful technical evaluation and strict confidentiality. Whether the objective is to retrieve a locked firmware archive, decode encrypted flash memory, clone a secured embedded MCU, or recover a damaged program file from EEPROM storage, our team develops a customized solution according to the protection level and hardware condition of the chip. By combining embedded engineering expertise with advanced reverse analysis techniques, we help customers duplicate critical firmware resources, restore inaccessible binary data, and preserve the functionality of important industrial and commercial systems. For companies facing obsolete hardware challenges, unavailable development files, or protected MCU limitations, our service provides an effective path toward firmware recovery, embedded system maintenance, and long-term equipment support.

DEVICE OVERVIEW

The PIC16F91X/946 devices are covered by this datasheet. They are available in 28/40/44/64-pin packages. Figure 1-1 shows a block diagram of the PIC16F913/916 device, Figure 1-2 shows a block diagram of the PIC16F914/917 device, and Figure 1-3 shows a block diagram of the PIC16F946 device. Table 1-1 shows the pinout descriptions.

MEMORY ORGANIZATION

The PIC16F91X/946 has a 13-bit program counter capable of addressing a 4K x 14 program memory space for the PIC16F913/914 (0000h-0FFFh) and an 8K x 14 program memory space for the PIC16F916/917 and PIC16F946 (0000h-1FFFh). Accessing a location above the memory boundaries for the PIC16F913 and PIC16F914 will cause a wrap around within the first 4K x 14 space. The Reset vector is at 0000h and the interrupt vector is at 0004h.

DATA MEMORY ORGANIZATION

The data memory is partitioned into multiple banks which contain the General Purpose Registers (GPRs) and the Special Function Registers (SFRs). Bits RP0 and RP1 are bank select bits.

Bank 0 is selected

Bank 1 is selected

Bank 2 is selected

Bank 3 is selected

Each bank extends up to 7Fh (128 bytes). The lower locations of each bank are reserved for the Special Function Registers. Above the Special Function Registers are the General Purpose Registers, implemented as static RAM. All implemented banks contain Special Function Registers. Some frequently used Special Function Registers from one bank are mirrored in another bank for code reduction and quicker access.

2.2.1

GENERAL PURPOSE REGISTER

The register file is organized as 256 x 8 bits in the PIC16F913/914, 352 x 8 bits in the PIC16F916/917 and 336 x 8 bits in the PIC16F946. Each register is accessed either directly or indirectly through the File Select. Register (FSR) (see Section 2.5 “Indirect Addressing, INDF and FSR Registers”).

SPECIAL FUNCTION REGISTERS

The Special Function Registers are registers used by the CPU and peripheral functions for controlling the desired operation of the device (see Tables 2-1, 2-2, 2-3 and 2-4). These registers are static RAM. The Special Function Registers can be classified into two sets: core and peripheral. The Special Function Registers associated with the “core” are described in this section. Those related to the operation of the peripheral features are described in the section of that peripheral feature.

Most extraction jobs have a shape that everyone recognises: open the package or use the debug port, read the array, hand over a file. This member of the family breaks that shape with a single number. It has 64 KB of internal flash and 320 KB of RAM, and it is built to run applications that are several megabytes in size.

The combination is not an oversight. It is a deliberate product decision: keep enough internal flash for the part of the program that has to be there, remove the rest, and let the customer buy external memory at whatever size the product actually needs. The consequence for a recovery is that the file read from the internal array is not the product’s firmware. It is the part of the firmware that had no choice.

What sixty-four kilobytes is enough for

Sixty-four kilobytes is roughly the size of a small bootloader plus a hardware abstraction layer plus a display initialisation sequence. That list is not arbitrary; it is exactly the set of things that must run before external memory is usable.

what goes in internal flash	why it cannot be elsewhere
the reset vector and startup code	the core fetches its first instruction from the internal alias of flash
the external memory controller configuration	nothing outside the chip can be read until this runs
the external memory device’s own initialisation	the memory part has to be brought out of its power-on state
a recovery or update path	a device with a blank external memory must still be able to accept a new image
sometimes the whole application, on small builds	only when the product really does fit in 64 KB

The last row is what makes the identification step necessary. Some products built on this part genuinely are small — a sensor bridge, a protocol converter, a display panel driver without much logic. Those fit. The others do not, and the difference is visible from the size and content of what is in the internal array.

Where the rest of it lives

Two external paths exist on this part and they behave differently, which matters because the recovery method differs for each.

path	address range	execution from it	what it implies for a recovery
memory-mapped serial flash	a dedicated region for the external serial device	possible, with a cache in front	the code can be read with the same tools as internal flash, once the mapping is understood
external parallel memory through the flexible controller	a separate region, typically SDRAM	possible, and often the only place big buffers fit	the code may be copied there at boot and executed from RAM, leaving the original in serial flash

The second row is the trap. A program that copies a compressed or encrypted image from serial flash into SDRAM at boot and then jumps to it leaves two artefacts: a compressed blob, and a live decompressed copy. Which one the customer wants depends on what they intend to do with it. The blob is the shippable form; the decompressed copy is easier to analyse but is a point-in-time snapshot of a device that was running.

The configuration that describes the external memory is small and highly structured: a handful of timing registers, a size and geometry word, and one or two mode settings. Those registers are a fingerprint of the memory part, and the same reasoning that recovers an SDRAM part from its timing values is set out in STM32F769 program recovery. For a product whose external device is serial flash rather than parallel memory, the equivalent reading is in STM32H725 heximal recovery, which deals with the case where that external device holds ciphertext.

Reading both halves in the right order

The order is not arbitrary, because each step depends on the previous one being understood.

Start with the internal array. It is small, it is always present, and it contains the configuration that makes the external device readable. From it, extract three things: the external controller settings, the external device’s initialisation command sequence, and the address at which the application expects to find its own code. Those three answers determine everything that follows.

Then read the external device directly. This is usually done by connecting to it rather than to the processor, because a direct read is deterministic and does not depend on the device’s own firmware working. If the external part is a serial device, the read produces a raw dump whose internal structure — page size, block size, whether there is a bad-block table — has to be understood before the contents mean anything.

Then reconcile the two. The boundary between them is not always stated anywhere: the internal image knows where it ends, and the external image knows where its own header begins, and there is often a gap of erased space between them that represents the linker’s alignment decision rather than a real boundary. A recovery that reports the gap as unprogrammed space has reported the truth about the gap and nothing about the program.

stage	what is being read	common mistake
internal array	boot stage, controller configuration	treating it as the whole firmware
external device, raw	the application body, possibly compressed	interpreting a compressed blob as code
runtime copy in RAM	the decompressed, running application	reporting a live snapshot as the shipped binary

What complete means for a split image

For a device with a single array, completeness is a length and a checksum. For a split image, it is a statement about a boundary, and that statement has to be made explicitly.

deliverable	what it contains	when it is the right one
internal array only	64 KB, with the loader clearly identified as a loader	the customer wants to understand the update mechanism
both images, raw	the internal array plus the external device dump, unmodified	the customer is rebuilding the device or archiving it
both images, reconciled	the two joined at the actual boundary with the gap explained	the customer wants a single file that can be analysed end to end
the runtime copy	the decompressed application as it existed when running	the customer wants to reverse-engineer behaviour quickly

The fourth option is worth offering and worth labelling carefully. A runtime copy is the easiest thing to produce and the easiest thing to over-claim, because it reflects one execution state rather than the shipped product. Saying so in the report is what separates a useful artefact from a misleading one.

The RAM budget changes the reasoning too

Three hundred and twenty kilobytes of RAM on a part with 64 KB of flash is an unusual ratio, and it tells you something about the intended design: buffers are expected to be large and to live outside the code’s home. That has a practical consequence for a recovery. The interesting data — frame buffers, sample histories, protocol windows — is often far larger than the code, and it lives in regions whose base addresses do not follow the pattern a developer coming from a smaller part would expect. The address map that causes this confusion is described in STM32F765 heximal recovery, and the banked-flash layout of the larger members of the family is in STM32F767 firmware recovery.

FAQ

Is 64 KB really the only internal flash option on this part? On this value-line member, yes; the die exists specifically to provide a small internal array with a large RAM and a display path.

Can the external memory be read without desoldering? Often yes, through the processor’s own controller once the device is running, but a direct connection to the memory device is more deterministic and does not depend on the firmware cooperating.

What if the external device is protected? Serial flash protection is usually a status-register setting rather than a physical fuse, and its state is one of the things worth reporting because it changes what a future re-read will be able to do.

Conclusion

On a part with 64 KB of internal flash and a modern application, the internal array is the loader and the product is elsewhere. A recovery that recognises this delivers a boundary, an external device dump and an honest statement about which artefact is the shipped form; one that does not delivers 64 KB of startup code and a customer who concludes the extraction failed. The number is the first thing to look at, and it decides the shape of the entire job.

The PIC16F914 microcontroller is widely used in industrial control systems, medical instruments, automotive electronics, smart metering devices, household appliances, and embedded automation products because of its low power consumption, stable performance, integrated LCD control capability, and flexible peripheral architecture. As many manufacturers rely on this MCU to operate proprietary equipment, the firmware, flash memory, EEPROM data, and embedded program archive stored inside the chip often become critical business assets.

However, when the original developer disappears, production documentation is lost, or a secured and protected chip becomes locked or encrypted, companies may urgently need to retrieve binary files, recover source code references, or duplicate an existing MCU program for maintenance and continued production. Our “Break IC PIC16F914 Heximal” service is designed to help engineers, repair centers, and manufacturers restore valuable microcontroller data safely and efficiently while minimizing downtime and hardware replacement costs.

Low-Power Features:

· Standby Current:

– <100 nA @ 2.0V, typical

· Operating Current:

– 11 ìA @ 32 kHz, 2.0V, typical

– 220 ìA @ 4 MHz, 2.0V, typical

· Watchdog Timer Current:

– 1 ìA @ 2.0V, typical

Peripheral Features:

· Liquid Crystal Display module:

– Up to 60/96/168 pixel drive capability on 28/40/64-pin devices, respectively

– Four commons

· Up to 24/35/53 I/O pins and 1 input-only pin:

– High-current source/sink for direct LED drive

– Interrupt-on-change pin

– Individually programmable weak pull-ups

· In-Circuit Serial Programming™ (ICSP™) via two pins

· Analog comparator module with:

– Two analog comparators

– Programmable on-chip voltage reference (CVREF) module (% of VDD)

– Comparator inputs and outputs externally accessible

· A/D Converter:

– 10-bit resolution and up to 8 channels

· Timer0: 8-bit timer/counter with 8-bit programmable prescaler

· Enhanced Timer1:

– 16-bit timer/counter with prescaler

– External Timer1 Gate (count enable)

– Option to use OSC1 and OSC2 as Timer1 oscillator if INTOSCIO or LP mode is selected

· Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler

· Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)

· Up to 2 Capture, Compare, PWM modules:

– 16-bit Capture, max. resolution 12.5 ns

– 16-bit Compare, max. resolution 200 ns

– 10-bit PWM, max. frequency 20 kHz

· Synchronous Serial Port (SSP) with I2C™

Our engineering team specializes in advanced MCU attack and reverse analysis solutions for protected and secured embedded systems. Through professional hardware inspection, chip decapsulation, firmware extraction, and low-level memory analysis, we can help customers break locked protection structures and retrieve important flash, EEPROM, binary, heximal, and firmware archive data from damaged or encrypted IC devices.

Depending on the protection level and physical condition of the MCU, our process may involve controlled voltage analysis, memory mapping, signal monitoring, decapsulate procedures, or customized decoding workflows to access secured program memory regions. Many clients require this service to clone obsolete industrial boards, duplicate unavailable spare modules, recover embedded source code references, or restore a lost production program file from a protected PIC16F914 MCU.

In some cases, companies also need to hack malfunctioning systems for diagnostic purposes, retrieve calibration data from locked EEPROM memory, or decode corrupted firmware archives to continue long-term equipment support. By combining hardware expertise with deep understanding of embedded architecture, we can attack difficult protection mechanisms while preserving original data integrity as much as possible.

Unlike generic chip programming services, our work focuses on complex recovery situations involving encrypted or secured microcontrollers where the original binary or flash archive is no longer accessible through standard programming tools. The PIC16F914 is often found in industrial LCD control units, portable medical devices, automotive dashboards, HVAC controllers, and intelligent sensor modules, making firmware continuity extremely important for end users.

A lost MCU program can halt production lines, interrupt machine servicing, or force companies into expensive redesign projects. Our service helps customers retrieve protected firmware, clone unavailable control boards, duplicate embedded logic, and recover valuable operational data archives from damaged or locked IC components.

We also assist clients who need to compare firmware revisions, analyze legacy program structures, or restore embedded memory content from defective devices for compatibility testing and maintenance. These solutions are particularly valuable for factories operating aging equipment where replacement hardware is no longer manufactured.

With extensive experience handling protected and encrypted microcontrollers, we understand the importance of confidentiality, technical precision, and fast turnaround times. Every project involving PIC16F914 firmware retrieval, flash recovery, EEPROM extraction, or binary decoding is evaluated individually to determine the safest and most effective technical path. Whether the requirement is to break MCU protection, retrieve lost heximal files, clone embedded firmware, restore corrupted program archives, or decode secured memory structures, our service provides a reliable solution for companies that depend on continuous operation of critical electronic systems.

Break Chip PIC16F785 and readout the Heximal content from MCU PIC16F785, the fuse bit of microcontroller PIC16F785 will be unlocked for opening status;

High-Performance RISC CPU:

· Only 35 Instructions to Learn:

– All single-cycle instructions except branches

· Operating Speed:

– DC – 20 MHz oscillator/clock input

– DC – 200 ns instruction cycle

· Interrupt Capability

· 8-Level Seep Hardware Stack

· Direct, Indirect and Relative Addressing modes

Special Microcontroller Features:

· Precision Internal Oscillator:

– Factory calibrated to ±1%

– Software selectable frequency range of 8 MHz to 32 kHz

– Software tunable

– Two-Speed Start-up mode

– Crystal fail detect for critical applications

– Clock mode switching during operation for power savings after recover mcu p89lpc925fdh hex

· Power-Saving Sleep mode

· Wide Operating Voltage Range (2.0V-5.5V)

· Industrial and Extended Temperature Range

· Power-on Reset (POR)

· Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

· Brown-out Reset (BOR) with Software Control Option

· Enhanced Low-Current Watchdog Timer (WDT) with on-chip Oscillator (software selectable nominal 268 seconds with full prescaler) with Software Enable

· Multiplexed Master Clear with Pull-up/Input Pin if break chip

· Programmable Code Protection

· High-Endurance Flash/EEPROM cell:

– 100,000 write Flash endurance

– 1,000,000 write EEPROM endurance

– Flash/Data EEPROM retention: > 40 years

Low-Power Features:

· Standby Current:

– 30 nA @ 2.0V, typical

· Operating Current:

– 8.5 ìA @ 32 kHz, 2.0V, typical

– 100 ìA @ 1 MHz, 2.0V, typical

· Watchdog Timer Current:

– 1 ìA @ 2.0V, typical

· Timer1 Oscillator Current:

– 2 ìA @ 32 kHz, 2.0V, typical

Peripheral Features:

· High-Speed Comparator module with:

– Two independent analog comparators

– Programmable on-chip voltage reference (CVREF) module (% of VDD) when break microcontroller pic12f629 program

– 1.2V band gap voltage reference

– Comparator inputs and outputs externally accessible

– < 40 ns propagation delay

– 2 mv offset, typical

· Operational Amplifier module with 2 independent Op Amps:

– 3 MHz GBWP, typical

– All I/O pins externally accessible

· Two-Phase Asynchronous Feedback PWM module:

– Complementary output with programmable dead band delay

– Infinite resolution analog duty cycle

– Sync Output/Input for multi-phase PWM

– FOSC/2 maximum PWM frequency

· A/D Converter:

– 10-bit resolution and 14 channels (2 internal)

· 17 I/O pins and 1 Input-only Pin:

– High-current source/sink for direct LED drive

– Interrupt-on-pin change

– Individually programmable weak pull-ups

· Timer0: 8-Bit Timer/Counter with 8-Bit Programmable Prescaler

· Enhanced Timer1:

– 16-bit timer/counter with prescaler

– External Gate Input mode

– Option to use OSC1 and OSC2 in LP mode as Timer1 oscillator, if INTOSC mode selected

· Timer2: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler for the purpose of break chip

· Capture, Compare, PWM module:

– 16-bit Capture, max resolution 12.5 ns

– Compare, max resolution 200 ns

– 10-bit PWM with 1 output channel, max frequency 20 kHz

· In-Circuit Serial ProgrammingTM (ICSPTM) via two pins

· Shunt Voltage Regulator (PIC16HV785 only):

– 5 volt regulation

– 4 mA to 50 mA shunt range

The PIC16F777 is a powerhouse in the 8-bit embedded landscape, frequently selected for its high pin count and advanced peripheral set, including three PWM modules and a 10-bit Analog-to-Digital converter. This versatile MCU is a critical component in complex systems such as industrial power inverters, sophisticated laboratory equipment, and advanced automotive diagnostics tools. Its unique features—like the nanoWatt technology for extreme power efficiency and a large flash memory array—allow it to execute intricate program logic while maintaining a low thermal footprint. However, in most commercial deployments, these devices are shipped in a locked state, utilizing protective security fuses to ensure the internal binary remains secured. For many industries, the inability to access this protected logic during a hardware failure or when the original source code is unavailable can lead to costly downtime and the threat of total system obsolescence.

Our specialized laboratory provides a high-fidelity solution to break through these hardware-level restrictions and retrieve the essential heximal data required for system continuity. To successfully attack a secured MCU, our technical team may perform a delicate procedure to decapsulate the silicon chip, exposing the internal memory structure for direct micro-probing. This physical approach enables us to decode the protected logic and extract the firmware directly from the flash or eeprom segments without damaging the core functionality. Whether you need to clone an obsolete controller for emergency backup or duplicate the program from an encrypted chip to safeguard your production line, our process ensures a perfect extraction of the binary archive. By choosing to hack the physical and logical barriers of the PIC16F777, we turn a secured “black box” back into a manageable and portable file for your engineering team.

Status Register:

The Status register contains the arithmetic status of the ALU, the Reset status and the bank select bits for data memory, The Status register can be the destination for any instruction, as with any other register. If the Status register is the destination for an instruction that affects the Z, DC or C bits, then the write to these three bits is disabled. These bits are set or cleared according to the device logic. Furthermore, the TO and PD bits are not writable, therefore, the result of an instruction with the Status register as destination may be different than intended. For example, CLRF STATUS, will clear the upper three bits and set the Z bit. This leaves the Status register as 000u u1uu (where u = unchanged). It is recommended, therefore, that only BCF, BSF, SWAPF and MOVWF instructions are used to alter the Status register because these instructions do not affect the Z, C or DC bits from the Status register. For other instructions not affecting any Status bits e, the result of an instruction with the Status register as destination may be different than intended.

The Program Counter (PC) is 13 bits wide. The low byte comes from the PCL register which is a readable and writable register. The upper bits (PC<12:8>) are not readable but are indirectly writable through the PCLATH register. On any Reset, the upper bits of the PC will be cleared. Figure 2-4 shows the two situations for the loading of the PC. The upper example in the figure shows how the PC is loaded on a write to PCL (PCLATH<4:0> → PCH). The lower example in the figure shows how the PC is loaded during a CALL or GOTO instruction (PCLATH<4:3> → PCH). The stack operates as a circular buffer. This means that after the stack has been PUSHed eight times, the ninth push overwrites the value that was stored from the first push. The tenth push overwrites the second push (and so on). PIC16F7X7 devices are capable of addressing a con- been PUSHed eight times, the ninth push overwrites the value that was stored from the first push. The tenth push overwrites the second push (and so on). tinuous 8K word block of program memory. The CALL and GOTO instructions provide only 11 bits of address to allow branching within any 2K program memory page. When doing a CALL or GOTO instruction, the upper 2 bits of the address are provided by PCLATH<4:3>.

The fundamental purpose of performing a targeted attack to break the security of a protected PIC16F777 is to protect decades of investment in specialized machinery and industrial assets. For many end users, the ability to retrieve a heximal archive from a locked MCU is the only viable path to clone or duplicate essential components when the original vendor no longer provides support. By deciding to decode or hack the secured architecture of an existing chip, organizations can successfully duplicate their vital firmware onto fresh hardware, effectively bypassing the constraints of a locked or encrypted environment. Our expertise allows you to duplicate the flash and eeprom data from any embedded controller, ensuring that the binary logic is preserved with 100% accuracy. This ensures that the program remains a functional asset, preventing the catastrophic loss of proprietary algorithms stored within the memory.

Ultimately, our recovery service provides the end user with total autonomy over their hardware maintenance and software lifecycle. Instead of facing the daunting task of rewriting complex source code from scratch, you can simply retrieve the heximal file and clone the locked program directly onto a replacement MCU. We specialize in the surgical precision required to decapsulate and attack these high-security components, ensuring that the binary data is handled with the highest level of integrity. By providing a reliable way to decode and duplicate the firmware of a secured PIC16F777, we turn a protected archive into a functional reality once again. Our commitment is to ensure that your data, memory, and program files remain accessible, regardless of the protective measures originally placed upon the silicon, guaranteeing that your critical infrastructure stays operational well into the future.

The PIC16F767 is a highly sophisticated 28-pin MCU that has become a cornerstone in mid-range industrial and commercial applications. Known for its integrated analog-to-digital converters, multiple timers, and nanoWatt technology for low power consumption, this chip is frequently found in medical respiratory equipment, advanced HVAC control systems, and high-precision weighing scales. Its unique architecture provides a generous flash memory and an internal eeprom for non-volatile data storage, allowing for complex program routines in a compact package. However, many of these embedded systems are deployed with protective locks to safeguard intellectual property. When a legacy board fails or the original source code is lost, the locked or secured state of the chip makes traditional troubleshooting impossible, leaving the protected logic trapped within the silicon.

MEMORY ORGANIZATION

There are two memory blocks in each of these PICmicro® MCUs. The program memory and data memory have separate buses so that concurrent access can occur and is detailed in this section. The program memory can be read internally by user code (see Section 3.0 “Reading Program Memory”). Additional information on device memory may be found in the “PICmicro® Mid-Range MCU Family Reference Manual” (DS33023). The PIC16F767 devices have a 13-bit program counter capable of addressing an 8K word x 14-bit program memory space. The PIC16F767 devices have 8K words of Flash program memory and the PIC16F767 devices have 4K words. The program memory maps for PIC16F7X7 devices are shown in Figure 2-1. Accessing a location above the physically implemented address will cause a wraparound. in the “PICmicro® Mid-Range MCU Family Reference.

The Reset vector is at 0000h and the interrupt vector is at 0004h. The data memory is partitioned into multiple banks which contain the General Purpose Registers and the Special Function Registers. Bits RP1 (Status<6>) and RP0 (Status<5>) are the bank select bits. Each bank extends up to 7Fh (128 bytes). The lower locations of each bank are reserved for the Special Function Registers. Above the Special Function Registers are General Purpose Registers, implemented as static RAM. All implemented banks contain Special Function Registers. Some frequently used Special Function Registers from one bank may be mirrored in another bank for code reduction and quicker access.

Our specialized laboratory offers a high-level technical service to break through these hardware-level restrictions and retrieve the critical binary archive necessary for system continuity. To successfully attack a secured MCU, our engineers employ advanced laboratory techniques to decapsulate the physical housing, allowing direct access to the internal circuitry for micro-probing and analysis. This process enables us to decode the heximal data directly from the protected memory layers without damaging the underlying logic. Whether the goal is to clone an obsolete controller to keep a production line running or to duplicate the firmware from a locked device for disaster recovery, our service provides a reliable pathway to hack the physical and logical barriers of the embedded chip. By extracting the binary file with 100% integrity, we transform a secured component back into a functional, portable program archive.

The primary purpose of performing a targeted attack to break the security of a protected PIC16F767 is to avoid the devastating costs of forced hardware obsolescence. For many end users, the ability to retrieve a heximal archive from a locked MCU is a strategic necessity that protects decades of investment in specialized machinery. By choosing to decode or hack the secured architecture of an existing chip, organizations can clone or duplicate their vital firmware onto replacement hardware, bypassing the need for a costly ground-up redesign. Our expertise allows you to duplicate the flash and eeprom data from any embedded controller, ensuring that the binary logic is preserved and ready for deployment. This service turns a locked or encrypted “black box” into a manageable and secure source code asset for your maintenance team.

Ultimately, our recovery service provides the end user with total autonomy over their hardware maintenance and software lifecycle. Instead of facing the impossible task of recreating lost program logic, you can simply retrieve the heximal file and clone the locked data directly onto a fresh MCU. We specialize in the precision required to decapsulate and attack these high-security components, ensuring that the binary data is handled with surgical accuracy. By providing a reliable way to decode and duplicate the firmware of a secured PIC16F767, we turn a protected archive into a functional reality once again. Our commitment is to ensure that your data, memory, and program files remain accessible, regardless of the protective measures originally placed upon the silicon, ensuring your systems remain operational for years to come.

The PIC16F747 is a powerful embedded MCU featuring 7 KB of flash memory, 256 bytes of eeprom, and a 10-bit ADC, making it a cornerstone in automotive dashboards, industrial pumps, HVAC controllers, and medical monitoring devices. Its protected architecture includes locked configuration bits and encrypted readout protection, designed to safeguard proprietary source code.

Yet when original binary files are lost due to outdated programming tools or supplier bankruptcy, engineers need legitimate ways to duplicate the chip’s logic. Unlike simpler 8-bit cousins, the PIC16F747 uses a complex interrupt vector table and internal oscillator calibration values stored in protected memory – losing these means replacing whole systems. Our service specializes in ethical clone operations: we retrieve every data byte from the secured die, enabling production continuity without redesigning the entire PCB.

Special Microcontroller Features:

· Fail-Safe Clock Monitor for protecting critical applications against crystal failure;

· Two-Speed Start-up mode for immediate code execution

· Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

· Programmable Code Protection

· Processor Read Access to Program Memory

· Power-Saving Sleep mode

· In-Circuit Serial Programming (ICSP) via two pins

· MPLAB® In-Circuit Debug (ICD) via two pins

· MCLR pin function replaceable with input only pin

DEVICE OVERVIEW

This document contains device specific information about the following devices:

PIC16F737/767 devices are available only in 28-pin packages, while PIC16F747/777 devices are available in 40-pin and 44-pin packages. All devices in the PIC16F7X7 family share common architecture with the following differences:

· The PIC16F737 and PIC16F767 have one-half of the total on-chip memory of the PIC16F747 and PIC16F777.

· The 28-pin devices have 3 I/O ports, while the 40/44-pin devices have 5.

· The 28-pin devices have 16 interrupts, while the 40/44-pin devices have 17.

· The 28-pin devices have 11 A/D input channels, while the 40/44-pin devices have 14.

· The Parallel Slave Port is implemented only on the 40/44-pin devices.

· Low-Power modes: RC_RUN allows the core and peripherals to be clocked from the INTRC, while SEC_RUN allows the core and peripherals to be clocked from the low-power Timer1. Refer to

Section 4.7 “Power-Managed Modes” for further details.

· Internal RC oscillator with eight selectable frequencies, including 31.25 kHz, 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz and 8 MHz. The INTRC can be configured as a primary or secondary clock source. Refer to Section 4.5 “Internal Oscillator Block” for further details.

To break into a locked PIC16F747, the first step is decapsulate the epoxy using acid or laser etching, exposing the silicon die. Then, specialists apply fault injection or side-channel analysis to attack the protective readout guard. This non-destructive method reveals the heximal (Intel HEX) program stored in flash and eeprom. Alternatively, we can decode the firmware via brute-force voltage glitching, effectively bypassing hardware locks. Once the archive is extracted, we clone the complete MCU – including configuration fuses and calibration constants – onto a new chip. For clients needing software updates, we also duplicate the binary into a file for emulation or disassembly. This process requires precision equipment and years of experience, as the PIC16F747’s secured boot block can self-destruct if probed incorrectly. Our lab ensures 100% data integrity, recovering even hidden memory sections that standard programmers ignore.

Why would a company need to hack its own embedded device? Consider a factory automation line using PIC16F747-based motor drives. The original source code was lost in a server migration, and the sole working unit is degrading. Without extraction, thousands of machines become obsolete. Our service lets you retrieve the firmware from that last good sample, then duplicate it onto fresh MCUs – saving millions in redesign costs. Similarly, medical syringe pumps with encrypted program logic can be decoded for safety recertification or feature enhancement. End users benefit from: (1) avoiding costly hardware re-engineering, (2) extending product life cycles, (3) creating backup archives for legacy repair, and (4) legally cloning batches of discontinued chips. Unlike reverse engineering for theft, our service requires proof of ownership. We turn a locked silicon puzzle into a usable heximal file – empowering you to maintain, upgrade, or migrate your embedded systems confidently.

Memory size shapes code the way plot size shapes a drawing. Given two kilobytes, a compiler cannot afford abstraction: no layered driver stack, no generic serial framework, no floating-point library unless it is used. What remains is direct register access and inline logic.

That is a gift to anyone reading a recovered image, because a small program has few enough constructs that every one of them can be accounted for.

What disappears at this size

Three things that dominate larger images are absent or minimal:

Library code. A serial implementation becomes a loop that shifts bits, not a driver with a buffer and a state machine. A delay becomes a counted loop, not a call into a timebase.

Indirection. Function pointers exist but are rare, because a dispatch table costs bytes and the compiler can usually resolve calls directly.

Floating point. Fixed-point arithmetic replaces it almost always, which means the constants in the image are scaled integers and the scaling factor is a design decision stored in the code.

That third point is worth dwelling on. A fixed-point design has a scale factor, and it appears as a shift or a multiply by a round number. Finding it is usually the key to interpreting every constant in the program.

What the image looks like

Region	Size at this scale	Character
Vector table	small, fixed	Jumps, mostly to a common handler
Initialisation	tens of instructions	Port directions, clock, peripherals
Main loop	the bulk	Register access, comparisons, delays
Constants	a handful of words	Scaled integers, thresholds

The main loop is where the product is. On a device this small there is usually one loop, and its structure is the design: read an input, compare, act, wait.

Why the entry point is decisive

With so little code, the initialisation sequence is proportionally large, and it states the design’s assumptions: which pins are outputs, which have pull-ups, whether the watchdog is enabled, which clock source is selected.

Reading it first gives a complete description of the hardware interface before any logic is examined. That ordering matters, because the logic is meaningless without knowing what it is talking to.

Reading order

1. Signature, fuses, lock byte. Clock and interface configuration first.
2. Array read, verified page by page.
3. Decode the reset vector, then read initialisation in full.
4. Map the port configuration: direction, pull-ups, initial output states.
5. Read the main loop, noting every register write as a hardware action.

Step 4 is the description a customer usually wants, and it is obtainable in minutes at this size. Step 5 explains the behaviour that goes with it.

The protection, unchanged

Two lock bits, four states, no boot section. The array is readable or it is not; the only operation that changes the answer erases it.

At two kilobytes the cost of that erasure is small in absolute terms and total in practical ones, because there is no redundancy: nothing else holds the program. That is worth stating plainly before any erase is considered.

Related notes

• ATmega261 and differential comparison — reading two images against each other.
• ATmega861 and code composition — the same family at four times the size.
• ATtiny88A and the entry point — the same first-instruction discipline.

FAQ

Is two kilobytes enough for a real product? For a single-function device, yes. These parts ship in volume.

Why is there no floating point? Because the library would consume most of the array. Fixed-point is the standard choice.

Can the whole image be read exhaustively? Yes, and at this size that is the normal approach rather than an aspiration.

Does the small array affect the lock bits? No. The mechanism is identical to larger members.

Conclusion

Two kilobytes is a constraint that produces legible code. Library layers vanish, indirection is rare, and constants are scaled integers with a visible factor. The result is an image that can be accounted for in full — which makes the conclusions drawn from it certain rather than probable.

An image has no index. There are no function names, no section headers, no entry in a table that says where anything is. There is one fixed point: address zero, where the processor begins after reset.

Everything else in the file is found by starting there and following. That makes the first instruction structurally the most important bytes in the dump, and it makes a wrong reading of it expensive — every conclusion downstream inherits the error.

What the first words contain

The reset vector is a jump, and on this architecture an absolute jump occupies two words: the opcode with low target bits, then the high bits. Decoding it gives two facts immediately:

• The instruction is a jump, which confirms the image starts where it should.
• The target is an address, which is where the program actually begins.

That second fact is the map. The target is typically just past the interrupt vector table, but not always: a build that places a large table or a constant block immediately after the vectors will have its first real instruction much further along. Either way, the target is where to start reading.

What the vector table contributes

Between address zero and the target sit the interrupt vectors, one slot each. They are jumps too, and their targets point at the handlers.

Reading them in order produces a compact description of how the firmware is organised:

What the vectors say	What it implies
All point to one address	Interrupts enabled but mostly unhandled
Each points somewhere distinct	Event-driven design, handlers matter
Several point just past the table	Handlers are inline, immediately after
All point into a single region	A dispatcher reads a flag and branches

The fourth pattern is common in compact firmware and it means the real logic is in the dispatcher, not in the handlers. Knowing that saves reading each handler separately.

Why the entry point matters for a reconstruction

A reconstruction that starts reading at the wrong place produces code that is internally consistent and externally wrong. It compiles, it disassembles plausibly, and it omits whatever came before the starting point — usually the initialisation sequence, which is where the design’s assumptions are stated.

Initialisation is the most informative part of a small program. It sets the clock, the port directions, the peripheral enables, and the initial state of every output. A reconstruction that skips it produces a functional description with no context, and the context is what a customer usually needs.

What “program” means on a part with no boot section

There is no second container here. The whole array is the program: vectors, initialisation, application, and whatever constant data the build placed at the end.

That rules out two questions that arise on larger parts — whether a bootloader is present, and whether part of the logic lives in a protected region. Neither applies. The image is one thing, and if it is readable it is complete.

It also means there is no self-programming path. The device cannot rewrite itself, so any field update happens through the programming pins. That is a design constraint worth noting in a report, because it explains why the product has a header.

The reading sequence

1. Signature, fuses, lock byte. Fuses first, because a clock that is not there produces silence.
2. Array read, verified page by page.
3. Decode the reset vector: confirm the jump and record the target.
4. Walk the vector table at the documented spacing, recording each target.
5. Begin the reconstruction at the target from step 3, not at address zero.

Step 5 is the discipline that keeps the work honest. Reading from zero means reading data as code, and data decoded as instructions is the most common source of confident nonsense in this work.

Related notes

• ATtiny88 and page artefacts — what the rest of the image looks like.
• ATtiny48A and revision workarounds — patterns to look for once you are inside.
• ATtiny261 and the vector table — the same structure with more entries.

FAQ

Is the program always at address zero? The vector is. The code it jumps to is usually a short distance later.

Can the vector be redirected? Not on this family. There is no boot section and no redirection fuse.

Why decode the vector before reading code? Because it is the only fixed reference in the image. Everything else is relative to it.

What if the first word is not a jump? Then the read is misaligned, or the image is not what it appears to be. Both are worth resolving before going further.

Conclusion

An image is a graph with one known node. Decoding the reset vector finds the second node, and the vector table describes the shape around it. Starting the reconstruction from that point rather than from address zero is what separates a description of the program from a description of the file.