ATMEGA644P-20PU - Atmel

Manufacturer Part Number

ATMEGA644P-20PU

Manufacturer

microchip-technology

Introduction

The ATMEGA644P-20PU is a high-performance, low-power 8-bit AVR RISC-based microcontroller that combines 64KB of programmable flash memory, 2KB of EEPROM, 4KB of SRAM, 32 general-purpose I/O lines, 32 working registers, an 8-channel 10-bit A/D converter, programmable USART, a byte-oriented 2-wire serial interface (I2C), SPI serial port, and five flexible timer/counters with compare modes and PWM.

Product Features and Performance

64KB of in-system self-programmable flash program memory

2KB of EEPROM

4KB of internal SRAM

32 general purpose I/O lines

32 x 8 general purpose working registers

Real-time counter with separate oscillator

Six PWM channels

8-channel 10-bit ADC

Programmable Watchdog Timer with internal Oscillator

On-chip Analog Comparator

Interrupt and control logic

Up to 20MIPS throughput at 20MHz

Product Advantages

Low power consumption

High performance and flexibility

Wide range of peripherals and connectivity options

In-system programmable flash

Robust design with various safety features

Key Reasons to Choose This Product

Powerful 8-bit AVR RISC microcontroller with advanced peripherals

Industry-leading energy efficiency for battery-powered applications

Broad compatibility and ease of integration

Proven reliability and long-term availability

Comprehensive development tools and software support

Quality and Safety Features

Brown-out Reset

Power-on Reset

Watchdog Timer

Analog Comparator

Robust design for reliable operation

Compatibility

The ATMEGA644P-20PU is compatible with a wide range of embedded systems and development platforms. It can be easily integrated into various applications due to its standard interfaces and peripherals.

Application Areas

Industrial automation and control

Home and building automation

Medical devices

Consumer electronics

Automotive and transportation

Robotics and mechatronics

Product Lifecycle

The ATMEGA644P-20PU is an active product and is not nearing discontinuation. Microchip Technology offers several equivalent and alternative models, such as:

ATMEGA644A-PU

ATMEGA644PA-PU

ATMEGA1284P-PU