Microchip Technology

ATMEGA644-20AUR  

Microcontrollers

The ATMEGA644-20AUR is a microcontroller unit (MCU) manufactured by Microchip Technology. It is part of the AVR Enhanced series of MCUs, which are known for their high performance, low power consumption, and advanced features.

Description:

The ATMEGA644-20AUR is a 28-pin, 8-bit microcontroller with 64KB of in-system programmable flash memory, 4KB of EEPROM, and 4KB of SRAM. It operates at a frequency of up to 20 MHz and has a wide operating voltage range of 1.8V to 5.5V.

Features:

Some of the key features of the ATMEGA644-20AUR include:

1. Enhanced Core: The enhanced AVR core provides higher performance and lower power consumption compared to previous generations of AVR MCUs.
2. In-System Programmable Flash Memory: The 64KB of flash memory can be programmed in-system, allowing for easy firmware updates and modifications.
3. EEPROM: The 4KB of EEPROM provides non-volatile storage for user data and program memory.
4. SRAM: The 4KB of SRAM provides fast access to data and program memory.
5. I/O Ports: The ATMEGA644-20AUR has 23 general-purpose I/O pins, which can be configured as inputs or outputs.
6. Timers and Counters: The MCU has several timers and counters, including a 16-bit timer/counter with PWM, a 8-bit timer/counter, and a watchdog timer.
7. Communication Interfaces: The ATMEGA644-20AUR has a UART, an SPI interface, and an I2C interface for communication with other devices.
8. Analog-to-Digital Converter: The MCU has an 8-channel, 10-bit analog-to-digital converter (ADC) for measuring analog signals.

Applications:

The ATMEGA644-20AUR is a versatile MCU that can be used in a wide range of applications, including:

1. Industrial Control: The ATMEGA644-20AUR can be used in industrial control systems for motor control, sensor interfacing, and data acquisition.
2. Consumer Electronics: The MCU can be used in consumer electronics such as appliances, toys, and gaming devices.
3. Medical Devices: The ATMEGA644-20AUR can be used in medical devices such as blood glucose meters, blood pressure monitors, and pulse oximeters.
4. Automotive Applications: The MCU can be used in automotive applications such as engine control modules, anti-lock braking systems, and infotainment systems.
5. IoT Devices: The ATMEGA644-20AUR can be used in IoT devices such as smart home devices, wearables, and sensors.

Overall, the ATMEGA644-20AUR is a powerful and versatile MCU that offers high performance, low power consumption, and a wide range of features that make it suitable for a variety of applications.

ATMEGA644-20AUR Documents

Download datasheets and manufacturer documentation for ATMEGA644-20AUR

PCN Assembly/Origin :

ATMEGAxx 02/Aug/2023      

Datasheets :

ATMEGA644/V Summary       ATMEGA644/V Datasheet      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

ATmega644 Development Tool Selector      

HTML Datasheet :

ATMEGA644/V Summary      

PCN Design/Specification :

Marking Chgs 11/Jul/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH