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DEVICE OVERVIEW

This document contains device specific information for the operation of the PIC16F818/819 devices. Additional information may be found in the “PICmicro? Mid-Range MCU Family Reference Manual” (DS33023) which may be downloaded from the Microchip web site. The Reference Manual should be considered a complementary document to this data sheet and is highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules

Low-Power Features:

? Power-Managed modes:

- Primary Run: XT, RC oscillator, 87 μA, 1 MHz, 2V

- INTRC: 7 μA, 31.25 kHz, 2V

- Sleep: 0.2 μA, 2V

? Timer1 oscillator: 1.8 μA, 32 kHz, 2V

? Watchdog Timer: 0.7 μA, 2V

? Wide operating voltage range:

- Industrial: 2.0V to 5.5V

Oscillators:

? Three Crystal modes:

- LP, XT, HS: up to 20 MHz

? Two External RC modes

? One External Clock mode:

- ECIO: up to 20 MHz

? Internal oscillator block:

- 8 user selectable frequencies: 31 kHz, 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz, 8 MHz

Peripheral Features:

? 16 I/O pins with individual direction control

? High sink/source current: 25 mA

? Timer0: 8-bit timer/counter with 8-bit prescaler

? Timer1: 16-bit timer/counter with prescaler, can be incremented during Sleep via external crystal/clock

? Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler

? Capture, Compare, PWM (CCP) module:

- Capture is 16-bit, max. resolution is 12.5 ns

- Compare is 16-bit, max. resolution is 200 ns

- PWM max. resolution is 10-bit

? 10-bit, 5-channel Analog-to-Digital converter

? Synchronous Serial Port (SSP) with SPI? (Master/Slave) and I2C? (Slave)

Special Microcontroller Features:

? 100,000 erase/write cycles Enhanced Flash program memory typical

? 1,000,000 typical erase/write cycles EEPROM data memory typical

? EEPROM Data Retention: > 40 years

? In-Circuit Serial ProgrammingTM (ICSPTM) via two pins

? Processor read/write access to program memory

? Low-Voltage Programming

? In-Circuit Debugging via two pins