PIC16F84A - Microcontroller | Electronic Components | TwinsChip

PIC16F84A

18-pin Enhanced FLASH/EEPROM
8-bit Microcontroller

Datasheet

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<7:4> 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 Enhanc

• 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