Features

• PIC16F636/639 8-Bit Flash Microcontrollers. 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. Microcontroller Features. 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). Peripherals. 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