This data sheet introduces the Microchip Technology Inc. PIC16C641, PIC16C642, PIC16C661 and PIC16C662 microcontrollers.
The PIC16C64X and PIC16C66X family are 8‑bit CMOS microcontrollers with EPROM program memory, analog comparators, and a range of peripheral features. They offer up to 33 I/O pins, high‑current sink/source, multiple oscillator options, and low‑power modes such as SLEEP and Power‑down Timer.
The document provides detailed specifications, memory organization, instruction set summary, electrical characteristics, packaging options, and ordering information, along with development tool support from Microchip.
| Operating speed | 20 MHz clock input |
|---|---|
| Instruction cycle time | 200 ns (single‑cycle) |
| Program memory (PIC16C641) | 2 KB |
| RAM (PIC16C641) | 128 bytes |
| Program memory (PIC16C662) | 4 KB |
| RAM (PIC16C662) | 176 bytes |
| Power consumption (typical) | <2.0 mA @5.0 V, 4.0 MHz |
| Standby current (typical) | <1.0 µA @3.0 V |
| Analog comparator count | 2 |
| I/O pins (PIC16C662) | 33 |
The devices operate with a 20 MHz clock input.
Each device includes two analog comparators.
Four oscillator options are offered: single‑pin RC, LP (low‑power), XT (standard crystal), and HS (high‑speed crystal).
Typical standby current is less than 1 µA at 3.0 V.