Normally you can’t read out the One Time Programming (OTP) memory in Microchip’s PIC MCUs that have code protection enabled, but an exploit has been found that gets around the copy protection in a ...
Microchip’s PIC18F K42 series offers the largest memory of any 8-bit PIC MCU, with up to 128 kbytes of flash and 8 kbytes of RAM, along with an extensive array of CIPs (core-independent peripherals).