8-bit CMOS Flash Microcontrollers with NanoWatt Technology
The handbook describes the PIC16F627A/628A/648A series of 18‑pin 8‑bit CMOS flash microcontrollers, covering architecture, memory organization, peripheral modules, and electrical characteristics. It includes pin‑out diagrams, package options, and guidance for development tools and programming.
The document is organized into sections such as device overview, architecture summary, memory layout, I/O ports, timer modules, capture/compare/PWM, reference voltage, USART, EEPROM, CPU special features, instruction set, electrical specifications, and package information, followed by appendices with data tables and migration notes. This manual is written in Chinese.
| Maximum Operating Frequency | 20 MHz |
|---|---|
| Flash Program Memory | 1024 words (PIC16F627A), 2048 words (PIC16F628A), 4096 words (PIC16F648A) |
| RAM | 224 bytes (PIC16F627A/628A), 256 bytes (PIC16F648A) |
| EEPROM | 128 bytes (PIC16F627A/628A), 256 bytes (PIC16F648A) |
| Standby Current (2.0 V) | 100 nA (typical) |
| Watchdog Timer Current (2.0 V) | 1 µA (typical) |
| I/O Pins | 16 |
The devices can operate up to 20 MHz.
Typical standby current is 100 nA at 2.0 V.
Each device provides 16 I/O pins.
PIC16F627A has 1024 words, PIC16F628A has 2048 words, and PIC16F648A has 4096 words of flash program memory.