The document describes the PIC12F635, PIC16F636, and PIC16F639 8‑bit CMOS microcontrollers, covering their architecture, memory organization, clock sources, and peripheral modules. It includes detailed pin‑out diagrams, electrical characteristics, and programming information for developers.
Key sections cover device overview, memory structure, timer modules, comparator and low‑voltage‑detect modules, EEPROM, encryption support, analog front‑end functions, CPU special features, and package information. The datasheet also provides DC/AC characteristic graphs and a list of applicable patents and regulatory notices. This manual is written in Chinese.
| Flash endurance | 100,000 write cycles |
|---|---|
| EEPROM endurance | 1,000,000 write cycles |
| Data retention | >40 years |
| Operating voltage | 2.0 V – 5.5 V |
| Maximum clock speed | 20 MHz |
| Standby current | 1 nA @ 2.0 V |
| Active current (32 kHz) | 8.5 µA @ 2.0 V |
The flash memory can be written up to 100,000 times.
The EEPROM can be written up to 1,000,000 times.
It operates from 2.0 V to 5.5 V.
The standby current is 1 nA at 2.0 V.