Recover MCU PIC16F627A Dump

Unstand the CPU structure can help us better and faster Recover MCU PIC16F627A Dump from its memory:

High Performance RISC CPU:

Operating speeds from DC – 20 MHz when recover mcu

Interrupt capability

8-level deep hardware stack

Direct, Indirect and Relative Addressing modes 35 single word instructions

– All instructions single cycle except branches Special Microcontroller Features:

· Internal and external oscillator options

– Precision Internal 4 MHz oscillator factory calibrated to ±1%

– Low Power Internal 37 kHz oscillator

– External Oscillator support for crystals and resonators

· Power saving SLEEP mode

· Programmable weak pull-ups on PORTB

· Multiplexed Master Clear/Input-pin

· Watchdog Timer with independent oscillator for reliable operation

· Low voltage programming

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

· Programmable code protection

· Brown-out Reset

· Power-on Reset if recover mcu

· Power-up Timer and Oscillator Start-up Timer

· Wide operating voltage range. (2.0 – 5.5V)

· Industrial and extended temperature range

· High Endurance FLASH/EEPROM Cell

– 100,000 write FLASH endurance

– 1,000,000 write EEPROM endurance

– 100 year data retention

Low Power Features:

· Standby Current:

– 100 nA @ 2.0V, typical

· Operating Current:

– 12 µA @ 32 kHz, 2.0V, typical

– 120 µA @ 1 MHz, 2.0V, typical

· Watchdog Timer Current

– 1 µA @ 2.0V, typical

· Timer1 oscillator current:

– 1.2 µA @ 32 kHz, 2.0V, typical

· Dual Speed Internal Oscillator:

– Run-time selectable between 4 MHz and 37 kHz

– 4 µs wake-up from SLEEP, 3.0V

Peripheral Features:

· 16 I/O pins with individual direction control

· High current sink/source for direct LED drive

· Analog comparator module with:

– Two analog comparators

– Programmable on-chip voltage reference (VREF) module

– Selectable internal or external reference

– Comparator outputs are externally accessible

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

· Timer1: 16-bit timer/counter with external crystal/clock capability

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

· Capture, Compare, PWM module

– 16-bit Capture/Compare

– 10-bit PWM

· Addressable Universal Synchronous/Asynchronous Receiver/Transmitter USART/SCI

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