PIC16F84A-20/SO 8-bit PICmicro microcontroller, 1.75 KB, 20 MHz, SO-18

18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller

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

CMOS Enhanced FLASH/EEPROM Technology: - Low power, high speed technology - Fully static design - Wide operating voltage range: - Commercial: 2.0V to 5.5V - Industrial: 2.0V to 5.5V - Low power consumption: - - 15 µA typical @ 2V, 32 kHz -