Microchip PIC16F639-I/SS, 8bit PIC Microcontroller, PIC16F, 20MHz, 2048 x 14 words, 256 B Flash, 20-Pin SSOP

The PIC16F range of microcontrollers from Microchip are 8-bit MCUs that incorporate Microchip’s PIC® architecture into a variety of pin and package options, from space efficient 14-pin devices to feature-rich 64-pin devices. Devices with Baseline, Mid-Range or Enhanced Mid-Range architecture are available with numerous different peripheral combinations, giving designers flexibility and choice for their applications.

The PIC16F636/639 family of microcontrollers is based upon Microchip’s Mid-Range core with an 8 level deep hardware stack and 35 instructions. These MCUs provide up to 5 MIPS, 3.5 Kbytes program memory, 128 bytes RAM and 256 bytes EEPROM. On board is a configurable oscillator factory calibrated to ±1% accuracy.

20 MHz Max. CPU Speed
35 Instructions
8 Level Hardware Stack
8 MHz Internal Oscillator – Selectable Frequencies 8 MHz to 31 kHz
12 I/O Pins
Power-On Reset (POR)
Wake-Up Reset (WUR)
Brown-Out Reset (BOR)
Power-Up Timer (PWRT)
Watchdog Timer (WDT)
Device Reset Timer (DRT)
Programmable Low-Voltage Detect (PLVD)
In-Circuit Serial Programming (ICSP)
In-Circuit Debug (ICD)

Two Comparator Modules
One 8-bit Timer
One 16-bit Timer
KEELOQ® Compatible Hardware Cryptographic Module
Low-Frequency Analogue Front-End (AFE) – PIC16F639 Model Only