GENERAL DESCRIPTION

The PIC16F8X is a group in the PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers. This group contains the following devices:

? PIC16F83

? PIC16F84

? PIC16CR83

? PIC16CR84

All PICmicro? microcontrollers employ an advanced RISC architecture. PIC16F8X devices have enhanced core features, eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with a separate 8-bit wide data bus. The two stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available. Additionally, a large register set is used to achieve a very high performance level.

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 - 10 MHz clock input

DC - 400 ns instruction cycle

? 14-bit wide instructions

? 8-bit wide data path

? 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

? 1000 erase/write cycles Flash program memory

? 10,000,000 erase/write cycles EEPROM data memory

? EEPROM Data Retention > 40 years

Peripheral Features:

? 13 I/O pins with individual direction control

? High current sink/source for direct LED drive

- 25 mA sink max. per pin

- 20 mA source max. per pin

? TMR0: 8-bit timer/counter with 8-bit programmable prescaler

Special Microcontroller Features:

? In-Circuit Serial Programming (ICSP?) - via two pins (ROM devices support only Data EEPROM programming)

? 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 Flash/EEPROM Technology:

? Low-power, high-speed technology

? Fully static design

? Wide operating voltage range:

- Commercial: 2.0V to 6.0V

- Industrial: 2.0V to 6.0V

? Low power consumption:

- < 2 mA typical @ 5V, 4 MHz

- 15 μA typical @ 2V, 32 kHz

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