Microchip Technology

ATMEGA644-20MUR  

Microcontrollers

The ATMEGA644-20MUR is a microcontroller unit (MCU) manufactured by Microchip Technology. This MCU belongs to the ATmega family of 8-bit AVR microcontrollers, which are known for their high performance, low power consumption, and ease of use.

Description:

The ATMEGA644-20MUR is a low-power CMOS 8-bit microcontroller based on the enhanced AVR RISC architecture. It features 64 Kbytes of In-System Programmable Flash memory, 4 Kbytes of In-System Programmable SRAM, and 2 Kbytes of In-System Programmable EEPROM. The MCU operates at a frequency of 20 MHz and is available in a 44-pin QFN package.

Features:

1. 64 Kbytes of In-System Programmable Flash memory for storing program code.
2. 4 Kbytes of In-System Programmable SRAM for data storage and buffering.
3. 2 Kbytes of In-System Programmable EEPROM for non-volatile data storage.
4. 20 MHz operating frequency for high performance.
5. Enhanced AVR RISC architecture for efficient code execution.
6. 44-pin QFN package for compact and efficient PCB design.
7. On-chip debugging and programming support through JTAG and SPI interfaces.
8. Wide operating voltage range (1.8V to 5.5V) for compatibility with various power supply options.
9. Integrated peripherals, including UART, SPI, I2C, and PWM, for easy integration with external components.
10. Sleep mode and power-saving features for low power consumption.

Applications:

The ATMEGA644-20MUR is suitable for a wide range of applications due to its high performance, low power consumption, and versatile features. Some common applications include:

1. Industrial control systems: The MCU can be used for controlling and monitoring various industrial processes, such as motor control, temperature regulation, and sensor data acquisition.
2. Home automation: The ATMEGA644-20MUR can be employed in smart home devices, such as lighting control, security systems, and HVAC control.
3. Medical devices: The MCU can be used in portable and wearable medical devices, like blood glucose monitors, heart rate monitors, and insulin pumps.
4. Consumer electronics: The ATMEGA644-20MUR can be utilized in various consumer electronics, such as remote controls, gaming controllers, and portable audio devices.
5. Automotive applications: The MCU can be used for in-vehicle infotainment systems, engine control units, and safety systems.
6. IoT devices: The ATMEGA644-20MUR is suitable for Internet of Things (IoT) devices, such as smart sensors, data loggers, and home automation hubs.

In summary, the ATMEGA644-20MUR is a versatile and powerful microcontroller that can be used in a wide range of applications, from industrial control systems to IoT devices, thanks to its high performance, low power consumption, and extensive feature set.

ATMEGA644-20MUR Documents

Download datasheets and manufacturer documentation for ATMEGA644-20MUR

PCN Assembly/Origin :

Additional Assembly Site 28/Sep/2021      

Datasheets :

ATMEGA644/V Summary       ATMEGA644/V Datasheet       ATmega164_324_644P/V Appendix      

PCN Packaging :

Boxes 07/Dec/2016       Transfer to Microchip/Label/Pkg 5/Sep/2016      

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