ATMEGA644A-AUR

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ATMEGA644A-AUR

IC MCU 8BIT 64KB FLASH 44TQFP

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Spezifikationen

Series AVR® ATmega
Part Status Active
DigiKey Programmable Verified
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 32
Program Memory Size 64KB (32K x 16)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Supplier Device Package 44-TQFP (10x10)
Package / Case 44-TQFP
Base Product Number ATMEGA644

Übersicht

Description

The ATmega644A is an 8-bit microcontroller from the AVR family by Microchip Technology, designed for a wide range of applications. It features a 16 MHz maximum clock speed, 64 KB of Flash memory, 4 KB of SRAM, and 2 KB of EEPROM, allowing for substantial program and data storage.
The ATmega644A includes 32 general-purpose I/O pins, multiple digital communication interfaces such as UART, SPI, and I2C, and several timers and PWM channels for precise control. It also has an integrated 10-bit ADC with up to 8 channels, making it suitable for analog signal processing.
Power efficiency is a key aspect, with various sleep modes to minimize consumption during idle periods. The microcontroller is commonly used in embedded systems, robotics, and control applications due to its versatility and robust performance. Programming is typically done using the Arduino IDE or AVR development tools, making it accessible for hobbyists and professionals alike.

Features

The ATmega644A-AUR is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. Key features include:
- Memory: 64 KB Flash memory, 4 KB SRAM, and 2 KB EEPROM.
- Architecture: 8-bit AVR with a 16 MHz maximum clock speed.
- I/O Ports: 32 general-purpose I/O pins.
- Timers: 3 timers (2 with PWM), providing flexible timing and pulse generation.
- ADC: 10-bit Analog-to-Digital Converter with up to 8 channels.
- Communication: Supports USART, SPI, and I2C interfaces for serial communication.
- Interrupts: 24 external interrupts with various levels of priority.
- Power Management: Multiple sleep modes to reduce power consumption.
- Operating Voltage: 1.8V to 5.5V, suitable for battery-operated applications.
- Package: Available in various packages, including TQFP and MLF, enhancing design flexibility.
This combination of features makes the ATmega644A-AUR suitable for applications in embedded systems, robotics, and automation.

Package

The ATMEGA644A-AUR is available in a 32-lead QFN (Quad Flat No-lead) package. This compact surface-mount package is designed for efficient space utilization on PCBs, making it suitable for various applications in embedded systems.

Pinout

The ATmega644A-AUR is an AVR 8-bit microcontroller from Microchip Technology with a 32-pin count. It features a range of functions including:
- Digital I/O: 23 general-purpose I/O pins.
- Analog: 8-channel 10-bit ADC.
- Communication: Supports USART, SPI, and I2C (TWI).
- Timers: 3 timers (2x 8-bit and 1x 16-bit).
- Interrupts: External and internal interrupt capabilities.
- Memory: 64 KB of Flash memory, 4 KB SRAM, and 2 KB EEPROM.
The microcontroller operates at a maximum frequency of 20 MHz and is commonly used in embedded systems for various applications including robotics, automation, and control systems. Its compact size and versatile functionality make it suitable for a wide range of projects.

Manufacturer

The ATmega644A-AUR is manufactured by Microchip Technology Inc., a leading provider of semiconductor and microcontroller solutions. Founded in 1989, Microchip is known for its expertise in embedded control applications. The company designs and manufactures a wide range of microcontrollers, analog semiconductors, and memory products, catering to various industries including automotive, industrial, and consumer electronics. Microchip Technology focuses on providing innovative and comprehensive solutions for engineers and developers, enabling efficient and effective product design.

Application

The ATmega644A-AUR microcontroller is commonly used in applications such as embedded systems, robotics, industrial control, home automation, and sensor interfacing. Its features, including multiple I/O ports, ADC, PWM, and UART, make it suitable for data acquisition, motor control, and communication tasks. Additionally, it is often utilized in educational projects and DIY electronics due to its ease of use and flexibility.

Equivalent

The ATMEGA644A-AUR is equivalent to the ATMEGA644P-AUR and ATMEGA1284P-AUR chips. These microcontrollers are part of the AVR family and share similar features, including memory size and pin configuration, making them compatible for various applications. Ensure to check specific electrical characteristics and programming features before substituting.

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