This document describes the 80C51 8-bit microcontroller family, including the 89C51/89C52/89C54/89C58 models with 4K/8K/16K/32K Flash memory, manufactured by Philips Semiconductors. It provides an overview of their features and characteristics.
This document is a product specification datasheet for the Philips 89C51/89C52/89C54/89C58 family of Single-Chip 8-bit Microcontrollers. These devices are derivatives of the 80C51 microcontroller family and feature non-volatile FLASH program memory that is parallel programmable.
| Operating Frequency | up to 33 MHz |
|---|---|
| Program Memory Type | non-volatile FLASH |
| RAM Size | 128 bytes (expandable to 64 k) |
| Interrupt Sources | 6 interrupt sources |
| I/O Ports | Four 8-bit I/O ports |
The devices support a speed up to 33 MHz.
There are six interrupt sources provided in the device.
The EA pin receives a 12.00 V programming supply voltage during FLASH programming.