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.

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