Key facts
- Brand
- Philips
- Model
- 80C32
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-05-10
Start here

Philips 80C31/80C32 Data Handbook
The 80C31/80C32 family are ROMless 8‑bit microcontrollers fabricated in Philips high‑density CMOS technology. They operate from 2.7 V to 5.5 V, offer 128 × 8 RAM (80C31) or 256 × 8 RAM (80C32), four 8‑bit I/O ports, three 16‑bit timers, a full‑duplex UART and on‑chip oscillator, and can run up to 33 MHz.
The devices are available in PDIP, PLCC and PQFP packages and support several power‑saving modes: idle, power‑down and a stop‑clock mode that can halt the oscillator while retaining RAM and registers. Pin‑out tables, special‑function registers, and ONCE (On‑Circuit Emulation) mode details are included for hardware designers.
Philips 80C32 specifications
| CPU core | 8051 |
|---|---|
| RAM size | 128 × 8 bytes (80C31) / 256 × 8 bytes (80C32) |
| Operating voltage | 2.7 V – 5.5 V |
| Maximum clock frequency | 33 MHz |
| I/O ports | Four 8‑bit ports (32 I/O lines) |
| Timers | Three 16‑bit counter/timers |
| UART | Full‑duplex enhanced UART |
| Package types | PDIP, PLCC, PQFP (44‑lead) |
All Philips 80C32 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
- Philips 80C31/80C32 Data Handbook 32 p
- PHILIPS 8XC52/54/58/80C32 8XC51FA/FB/FC/80C51FA 8XC51RA+/RB+/RC+/RD+/80C51RA + 80C51 8-bit microcontroller family 8K 64K/256 1K OTP/ROM/ROMless low voltage (2.7V 5.5V) low power 56 p
- PHILIPS 8XC52/54/58/80C32 8XC51FA/FB/FC/80C51FA 8XC51RA+/RB+/RC+/RD+/80C51RA + 80C51 8-bit microcontroller 56 p
Questions answered in these manuals
What voltage range does the 80C31/80C32 operate at?
The devices operate from 2.7 V to 5.5 V.
How many I/O ports does the microcontroller have?
It has four 8‑bit I/O ports, providing a total of 32 I/O lines.
What is the operating voltage range of the Philips 8-bit microcontrollers?
They operate from 2.7 V to 5.5 V.
What is the maximum clock speed supported?
The devices can run up to 33 MHz.
What is the operating voltage range of the Philips 8-bit microcontrollers?
The devices operate from 2.7 V to 5.5 V.
What is the maximum clock speed supported?
The microcontrollers can run up to 33 MHz.
