This powerful yet easy-to-program (only 35 single word instructions) CMOS Flash-based 8-bit microcontroller packs Microchip’s powerful PIC® MCU architecture and features such as KeeLoq® compatible Cryptographic Module, PLVD, 1 comparator and 128 bytes of EEPROM data memory into an 8-pin package. This device is easily adapted for automotive, industrial, appliance or consumer product applications that require field re-programmability combined with authentication security. In addition, Microchip’s nanoWatt technology provides outstanding low power performance for optimizing battery powered applications.

Parameter Name	Value
Program Memory Type	Flash
Program Memory (KB)	1.75
CPU Speed (MIPS)	5
RAM Bytes	64
Data EEPROM (bytes)	128
Timers	1 x 8-bit, 1 x 16-bit
Comparators	1
Temperature Range (C)	-40 to 125
Operating Voltage Range (V)	2 to 5.5
Pin Count	8

Features

KEELOQ® ,PLVD, 128 bytes of EEPROM data memory

MPLAB® ICD-2 programming support or debugging support with optional header adapter

8 MHz Internal oscillator software programmable

PIC12F635/PIC16F636/PIC16F639 Data Sheet