The 89c51 is a single-chip 8-bit microcontroller manufactured by Philips Semiconductors using advanced CMOS process. It is a derivative of the 80c51 microcontroller family. The series has 4k/8k/16k/32k FLASH program memory and can be programmed in parallel.
This datasheet describes the Philips 89C51/89C52/89C54/89C58 family of Single-Chip 8-bit Microcontrollers. These devices are derivatives of the 80C51 microcontroller family and feature a non-volatile FLASH program memory that is parallel programmable.
| Operating Frequency | up to 33 MHz |
|---|---|
| Program Memory Type | FLASH |
| CPU Architecture | 80C51 Central Processing Unit |
| Interrupt Sources | 6 interrupt sources |
| I/O Ports | Four 8-bit I/O ports |
The devices support speeds up to 33 MHz.
There are six interrupt sources provided by the device.
The power supply voltage must be 5V.