ATMEGA644PA-MU

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ATMEGA644PA-MU

IC MCU 8BIT 64KB FLASH 44VQFN

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Specifications

Package Bulk
Series AVR® ATmega
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 20MHz
Connectivity I²C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O 32
ProgramMemorySize 64KB (32K x 16)
ProgramMemoryType FLASH
EEPROMSize 2K x 8
RAMSize 4K x 8
Voltage-Supply(Vcc/Vdd) 1.8V ~ 5.5V
DataConverters A/D 8x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 44-VFQFN Exposed Pad

Overview

Description

The ATmega644PA-MU is a microcontroller from Atmel's AVR series, featuring an 8-bit RISC architecture. It operates at a maximum clock speed of 20 MHz and is designed for low power consumption, making it suitable for battery-operated devices. The chip includes 64 KB of Flash memory, 4 KB of SRAM, and 2 KB of EEPROM, providing ample storage for applications.
It has 32 general-purpose I/O pins, allowing for versatile interfacing with sensors, displays, and other peripherals. The ATmega644PA-MU supports various communication protocols, including SPI, I2C, and USART, enhancing its connectivity options.
Additionally, it features 6 analog input channels, timers, and multiple PWM outputs, suitable for applications in automation, robotics, and consumer electronics. The microcontroller is available in a compact 32-pin TQFP package, making it ideal for space-constrained designs. Overall, the ATmega644PA-MU is a robust choice for hobbyists and professionals seeking a reliable and flexible microcontroller for diverse projects.

Features

The ATmega644PA-MU is an 8-bit AVR microcontroller from Microchip Technology, featuring the following key specifications:
- Flash Memory: 64KB for program storage.
- SRAM: 4KB for data storage.
- EEPROM: 2KB for non-volatile data retention.
- Clock Speed: Operates at up to 20 MHz.
- I/O Pins: 32 general-purpose input/output pins.
- ADC: 10-bit Analog-to-Digital Converter with 8 channels.
- Timers: Three timers (two 8-bit and one 16-bit) for timing operations.
- Communication Interfaces: SPI, I2C (TWI), and USART for serial communication.
- Interrupts: Supports external and internal interrupts for responsive applications.
- Operating Voltage: 1.8V to 5.5V, making it versatile for various power requirements.
- Package Type: Available in 32-pin TQFP and 32-pad MLF packages.
The ATmega644PA-MU is widely used in embedded systems due to its balance of performance, versatility, and low power consumption.

Package

The ATMEGA644PA-MU is available in a TQFP (Thin Quad Flat Package) form factor, specifically a 32-pin package. This surface-mount package allows for efficient use of space and is suitable for applications requiring compact designs.

Pinout

The ATmega644PA-MU is an 8-bit microcontroller from Microchip's ATmega family, and it comes in a 32-pin TQFP (Thin Quad Flat Package) format.
Pin Count: 32 pins
Pin Functionality Overview:
- Digital I/O: 23 pins can be used as general-purpose input/output (GPIO) pins.
- Analog Inputs: 8 of these pins can serve as 10-bit ADC (Analog-to-Digital Converter) inputs.
- USART: 2 pins are used for Universal Synchronous and Asynchronous serial Receiver and Transmitter.
- SPI: 3 pins support SPI (Serial Peripheral Interface) communication.
- I2C: 2 pins are used for I2C (Inter-Integrated Circuit) communication.
- Timer/Counters: Includes several pins for timer and PWM (Pulse Width Modulation) outputs.
- External Interrupts: 6 pins can be configured as external interrupt sources.
- Reset Pin: 1 pin is designated for resetting the microcontroller.
The ATmega644PA-MU is suitable for a variety of embedded applications, providing a good balance of performance and peripheral support.

Manufacturer

The ATMEGA644PA-MU is manufactured by Microchip Technology Inc., an American semiconductor company. Microchip specializes in developing microcontrollers, memory, and analog semiconductors. Founded in 1989, the company is known for its PIC microcontroller family and has expanded its product offerings to include a wide range of integrated circuits and development tools for various applications in embedded systems. Microchip serves diverse markets, including automotive, industrial, consumer electronics, and telecommunications. The ATMEGA644PA-MU is part of the AVR microcontroller family, known for its ease of use, efficiency, and versatility in various electronic projects and products.

Application

The ATmega644PA-MU is commonly used in embedded systems for applications such as robotics, automation, sensors, motor control, data logging, and consumer electronics. Its versatility in handling analog and digital signals makes it suitable for home automation, IoT devices, wearable technology, and educational projects. The microcontroller's built-in peripherals and low power consumption also support battery-operated applications.

Equivalent

Equivalent products to the ATmega644PA-MU include the ATmega1284P, which offers similar features with more memory, and the ATmega64, though it has less memory. The ATmega324P can also serve as an alternative, providing comparable functionalities. Additionally, you might consider other AVR microcontrollers from the same family, depending on specific requirements like pin count or peripherals. Always check datasheets for compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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