Datasheet

PDF

Software

Description

AT89S51

AT89S51 Complete

(file size: 484057, 32 pages, revision C, updated: 06/2008)
More Documents...

Low-power, high-performance CMOS 8-bit microcontroller with 4KB of ISP flash memory. The device uses Atmel high-density, nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. On-chip flash allows program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.

This powerful microcontroller is suitable for many embedded control applications.

Key Parameters

Parameter
Value

Flash (Kbytes):

4 Kbytes

Pin Count:

44

Max. Operating Freq. (MHz):

24 MHz

CPU:

8051-12C

Max I/O Pins:

32

UART:

1

SRAM (Kbytes):

0.125

Operating Voltage (Vcc):

4.0 to 5.5

Timers:

2

ISP:

SPI

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment Buy Online Samples
AT89S51-24PU PDIP 40P6 40 24 Industrial (A) (-40°C to 85°C) Buy Request
AT89S51-24AU TQFP 44A 44 24 Industrial (A) (-40°C to 85°C) Buy Request
AT89S51-24JU PLCC 44J 44 24 5.0 Industrial (A) (-40°C to 85°C) Buy Request