Tuesday, September 18, 2012

PIC12F508 MCU Code Extraction

PIC12F508 MCU Code Extraction

PIC12F508/509/16F505 8/14-Pin, 8-Bit Flash Microcontrollers

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chip reverse.

The PIC12F508/509/16F505 devices from Microchip Technology are

low-cost, high-performance, 8-bit, fullystatic, Flash-based CMOS

microcontrollers. They employ a RISC architecture with only 33

single-word/single-cycle instructions. All instructions are

single cycle (200 ┬Ás) except for program branches, which take

two cycles. The PIC12F508/509/16F505 devices deliver performance

an order of magnitude higher than their competitors in the same

price category. The 12-bit wide instructions are highly

symmetrical, resulting in a typical 2:1 code compression over

other 8-bit microcontrollers in its class. The easy-to-use and

easy to remember instruction set reduces development time



    Precision 4 MHz internal oscillator
    Baseline Core with 33 Instructions, 2 Stack Levels
    All single-cycle Instructions except for program branches

which are two cycles
    12-bit wide instructions
    8-bit wide data path
    25 mA source/sink current I/O
    Low power (100nA) sleep current
    One 8-bit timer (TMR0)
    Watchdog timer (WDT)
    In Circuit Serial Programming™ (ICSP™) capability
    In-Circuit debugging support
    Programmable code protection

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