PIC16F84A集成电路（IC）的微控制器规格书PDF中文资料

High Performance RISC CPU Features:

• Only 35 single word instructions to learn

• All instructions single-cycle except for program

branches which are two-cycle

• Operating speed: DC - 20 MHz clock input

DC - 200 ns instruction cycle

• 1024 words of program memory

• 68 bytes of Data RAM

• 64 bytes of Data EEPROM

• 14-bit wide instruction words

• 8-bit wide data bytes

• 15 Special Function Hardware registers

• Eight-level deep hardware stack

• Direct, indirect and relative addressing modes

• Four interrupt sources:

- External RB0/INT pin

- TMR0 timer overflow

- PORTB interrupt-on-change

- Data EEPROM write complete

Peripheral Features:

• 13 I/O pins with individual direction control

• High current sink/source for direct LED drive

- 25 mA sink max. per pin

- 25 mA source max. per pin

• TMR0: 8-bit timer/counter with 8-bit

programmable prescaler

Special Microcontroller Features:

• 10,000 erase/write cycles Enhanced FLASH

Program memory typical

• 10,000,000 typical erase/write cycles EEPROM

Data memory typical

• EEPROM Data Retention > 40 years

• In-Circuit Serial Programming™ (ICSP™) - via

two pins

• Power-on Reset (POR), Power-up Timer (PWRT),

Oscillator Start-up Timer (OST)

• Watchdog Timer (WDT) with its own On-Chip RC

Oscillator for reliable operation

• Code protection

• Power saving SLEEP mode

• Selectable oscillator options