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