This document describes the features and characteristics of the PIC16C63A/65B/73B/74B series microcontrollers, including high-performance RISC CPU, 35 single-word instructions, single-cycle instruction execution, 4K x 14 words of program memory, and 192 x 8 bytes of data memory.
The PIC16C63A/65B/73B/74B devices are low‑cost, high‑performance 8‑bit CMOS microcontrollers in Microchip's mid‑range PIC16CXX family. They offer a 35‑instruction RISC core, eight‑level hardware stack, multiple timer modules, SSP, USART, and up to eight‑channel A/D conversion. Power‑saving options include Power‑on Reset, Watchdog Timer, and a SLEEP mode.
These devices are offered in several package types (PDIP, SOIC, TQFP, etc.) with 22 or 33 I/O pins depending on the variant, and operate over a 2.5 V to 5.5 V range at up to 20 MHz. They target applications such as security, remote sensing, appliance control and automotive, where low power consumption and small footprint are critical.
| Program Memory | 4 K x 14 words |
|---|---|
| Data Memory (RAM) | 192 bytes |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Maximum Clock Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Hardware Stack Depth | 8 levels |
| Watchdog Timer | On‑chip RC oscillator |
| Sleep Mode | Power‑saving SLEEP mode |
| Sink/Source Current | 25 mA |
| I/O Pins (PIC16C63A/73B) | 22 pins |
| I/O Pins (PIC16C65B/74B) | 33 pins |
| A/D Converter Channels | 8‑bit, up to 8 channels |
They operate from 2.5 V up to 5.5 V.
The PIC16C63A variant provides 22 I/O pins.