AT89C55WD-24AU - Atmel

Manufacturer Part Number

AT89C55WD-24AU

Manufacturer

Microchip Technology

Introduction

The AT89C55WD-24AU is an 8-bit microcontroller from Microchip Technology's 89C series with a wide range of features suitable for embedded applications.

Product Features and Performance

8-Bit 8051-Compatible Microcontroller

24MHz Maximum Operating Frequency

20KB of Reprogrammable Flash Memory

256 Bytes of RAM

32 Programmable I/O Lines

UART/USART Serial Communication

Watchdog Timer (WDT) for System Stability

Internal Oscillator

Product Advantages

Low Power Consumption

High Performance with 24MHz Speed

Large Program Memory for Complex Applications

Reliable Operation with Watchdog Timer

In-System Programmable Flash Memory

Key Technical Parameters

Core Processor: 8051

Core Size: 8-Bit

Speed: 24MHz

Connectivity: UART/USART

Peripherals: WDT

Number of I/O: 32

Program Memory Size: 20KB

RAM Size: 256 x 8

Voltage Supply: 4.5V to 5.5V

Operating Temperature Range: -40°C to 85°C

Mounting Type: Surface Mount

Package: 44-TQFP (10x10)

Quality and Safety Features

Extended Temperature Range for Reliability

Robust Package for Surface Mounting

Compatibility

Compatible with 8051 Microcontroller Peripherals and Extensions

Supports Standard UART/USART for Serial Communication

Application Areas

Industrial Control Systems

Automotive Electronics

Home Automation

Consumer Electronics

Telecommunication Systems

Product Lifecycle

Active Product Status (Not Nearing Discontinuation)

Availability of Replacements or Upgrades

Several Key Reasons to Choose This Product

High-speed operation at 24MHz improves system performance

Substantial 20KB Flash Memory supports complex applications without external components

Versatile 32 I/O lines allow for interfacing with a wide range of sensors and actuators

Highly reliable with safety features like Watchdog Timer alleviates risk of system hang-ups

Broad operating voltage range suitable for diverse environments and applications

Active product lifecycle ensures long-term availability and support

Simple programming and compatibility due to industry-standard 8051 core

Suitable for surface mount technology enabling compact and robust PCB designs