This document describes the features and characteristics of Microchip Technology's PIC12C508, PIC12C508A, PIC12C509, and PIC12C509A series products, including high-performance RISC CPU, peripheral features, and selectable oscillator options.
The PIC12C5XX family from Microchip Technology is a low‑cost, high‑performance 8‑bit CMOS microcontroller series. It uses a RISC core with only 33 single‑word instructions, offers a wide operating voltage range, and includes on‑chip peripherals such as a real‑time clock, watchdog timer, and multiple oscillator options.
The devices are available in 8‑pin DIP, SOIC, and ceramic side‑brazed packages, with both OTP and UV‑erasable versions. Programming is performed via in‑circuit serial programming, and the family is supported by Microchip’s development tools and third‑party programmers.
| Operating speed | DC - 4 MHz |
|---|---|
| Program memory (PIC12C508) | 512 × 12 bits |
| RAM (PIC12C508) | 25 bytes |
| Package types | 8‑pin DIP, SOIC, ceramic side‑brazed |
The core implements only 33 single‑word instructions.
The device includes a low‑power (LP) oscillator mode, a Sleep mode, Power‑On Reset, and a Watchdog Timer.
Programming is done by in‑circuit serial programming using the GPO and GP1 pins.