ATMEGA644PA-AUR - Atmel

Manufacturer Part Number

ATMEGA644PA-AUR

Manufacturer

Microchip Technology

Introduction

The ATMEGA644PA-AUR is an 8-bit microcontroller from the AVR® ATmega family, designed for efficiency and versatility in embedded applications.

Product Features and Performance

Core Processor: AVR running at a speed of 20MHz

Connectivity options include I2C, SPI, UART/USART for diverse communication needs

Peripherals include Brown-out Detect/Reset, Power-on Reset, Pulse Width Modulation, and Watchdog Timer for enhanced functionality

Provides 32 I/O pins for interfacing with external components

Program Memory Size of 64KB, allowing for complex programming and algorithm storage

2K x 8 EEPROM and 4K x 8 RAM for data storage

Supports Voltage Supply ranges from 1.8V to 5.5V, ensuring compatibility with various power sources

Data Converters: A/D 8x10b for analog to digital conversion

Internal Oscillator simplifies the system design

Can operate in temperatures ranging from -40°C to 85°C

Product Advantages

High program memory size enables sophisticated software applications

Flexible power supply requirements make it suitable for a variety of environments

Variety of connectivity and peripheral options enhance module versatility

High number of I/O pins support complex interfaces and functionalities

Embedded data converters facilitate direct sensor interfacing

Key Technical Parameters

Core Size: 8-Bit

Speed: 20MHz

Program Memory Size: 64KB (32K x 16)

EEPROM Size: 2K x 8

RAM Size: 4K x 8

Voltage Supply: 1.8V ~ 5.5V

Data Converters: A/D 8x10b

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Brown-out Detect/Reset ensures safe operation under low voltage conditions

Power-on Reset (POR) for reliable startup operations

Watchdog Timer (WDT) prevents system hang-up

Compatibility

The ATMEGA644PA-AUR is packaged in a 44-TQFP, compatible with surface-mount technology for streamlined manufacturing processes

Application Areas

Ideal for industrial control systems, automotive applications, home automation, IoT devices, and other embedded systems

Product Lifecycle

Product Status: Active

Not nearing discontinuation, with replacements or upgrades available for future-proof designs

Several Key Reasons to Choose This Product

Robust processing capability with an AVR core processor running at 20MHz

High memory capacity (64KB FLASH) accommodates complex applications

Diverse connectivity (I2C, SPI, UART/USART) supports various communication protocols

Extensive I/O options (32 pins) allow for versatile peripheral connections

Adaptable to various power supplies (1.8V ~ 5.5V), optimizing power efficiency

Embedded safety features ensure reliable and secure operation