AT91M55800A-33AU - Atmel

Manufacturer Part Number

AT91M55800A-33AU

Manufacturer

Microchip Technology

Introduction

The AT91M55800A-33AU is an ARM7® core microcontroller designed for embedded control systems with a 33MHz clock speed.

Product Features and Performance

16/32-Bit ARM7® Core Processor

Supports speeds up to 33MHz

ROMless with 8K x 8 RAM Size

Connectivity options include EBI/EMI, SPI, UART/USART

Peripherals include Power-On Reset (POR) and Watchdog Timer (WDT)

58 programmable I/O lines

Dual 10-bit DAC and 8-channel 10-bit ADC

Internal oscillator

Operating temperature range from -40°C to 85°C

Product Advantages

Flexible and high-speed central processing unit

Extensive connectivity for simpler peripheral expansion

Enhanced reliability with built-in POR and WDT

Suitable for varied industrial operating temperatures

Key Technical Parameters

Core Processor: ARM7®

Speed: 33MHz

Number of I/O: 58

RAM Size: 8K x 8

Voltage Supply: 2.7V ~ 3.6V

Data Converters: A/D 8x10b, D/A 2x10b

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Power-On Reset (POR)

Watchdog Timer (WDT) for system stability and preventing software lock-up

Compatibility

Interface supported: EBI/EMI, SPI, UART/USART for broad hardware compatibility

Application Areas

Industrial automation

Sensor management

Consumer electronics control

Product Lifecycle

Product Status: Active

Currently no known discontinuation, replacements, or upgrades

Several Key Reasons to Choose This Product

High performance ARM7® processor enables robust operations

Versatile I/O capability provides flexibility in system design

Low voltage operation and power efficiency

Suitable for harsh environmental conditions with a wide range of operating temperatures

Reliable data conversion capability for precise control and monitoring