DS40143D is Microchip's data sheet for the PIC16C55X series of 8-bit CMOS microcontrollers
The PIC16C55X family consists of EPROM‑based 8‑bit CMOS microcontrollers (PIC16C554, PIC16C557, PIC16C558) offering low power, high speed, and a rich set of peripherals such as timers, watchdog, and programmable code protection. They support multiple oscillator options (RC, LP, XT, HS) and include power‑saving features like Power‑on Reset, Power‑up Timer, and SLEEP mode.
Key specifications include a 20 MHz maximum clock frequency, 2.5 V‑5.5 V operating voltage range, and various package options (18‑pin DIP/SOIC, 28‑pin DIP/SOIC, 20‑pin SSOP). Memory sizes range from 512 × 14‑bit program words with 80 bytes data RAM (PIC16C554) to 2 K × 14‑bit program memory with 128 bytes data RAM (PIC16C557/558). The devices provide 13‑22 I/O pins and an 8‑bit timer/counter with programmable prescaler.
| Maximum Clock Frequency | 20 MHz |
|---|---|
| Instruction Cycle Time | 20 ns |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Data RAM (PIC16C554) | 80 bytes |
| I/O Pins (PIC16C554/558) | 13 pins |
| Typical Active Current | <2.0 mA @ 5.0 V, 4.0 MHz |
The PIC16C55X family supports a maximum clock frequency of 20 MHz.