89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product specification
This document is a product specification for the Philips 89C51/89C52/89C54/89C58, which are Single-Chip 8-bit Microcontrollers derived from the 80C51 family. These devices contain non-volatile FLASH program memory that is parallel programmable and operate at speeds up to 33 MHz.
| CPU Architecture | 80C51 Central Processing Unit |
|---|---|
| Program Memory Type | On-chip FLASH Program Memory |
| Maximum Operating Frequency | 33 MHz |
| Operation Mode | Full static operation |
| Interrupt Sources | 6 interrupt sources |
| I/O Ports | Four 8-bit I/O ports |
| Timers | 3 16-bit timers |
The devices support a speed up to 33 MHz.
There are six interrupt sources provided by the device.