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GENERAL DESCRIPTION

The PIC16C8X is a group in the PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers. This group contains the following devices:

? PIC16C83

? PIC16CR83

? PIC16C84

? PIC16C84A

? PIC16CR84

All PIC16/17 microcontrollers employ an advanced RISC architecture. PIC16CXX 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 gives some of the architectural innovations used to achieve a very high performance.

High Performance RISC CPU Features

? Only 35 single word instructions to learn

? All instructions single cycle (400 ns @ 10 MHz) 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

? 1,000,000 data memory EEPROM ERASE/WRITE cycles - Typical

? 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

? 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

? Serial In-System Programming - via two pins

(ROM devices support only Data EEPROM programming)

CMOS Technology

? Low-power, high-speed CMOS EEPROM 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 ?A typical @ 2V, 32 kHz

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