Microchip Technology

ATMEGA644P-20AQ  

Microcontrollers

The ATMEGA644P-20AQ is a microcontroller unit (MCU) manufactured by Microchip Technology. It is a part of the AVR Enhanced series of MCUs and is based on the AVR architecture. The device is available in a 44-pin QFN package.

Description:

The ATMEGA644P-20AQ is a low-power, high-performance 8-bit microcontroller with advanced features. It is designed for a wide range of applications, including industrial control, medical equipment, and consumer electronics. The device features a high-speed 16 MHz CPU and up to 64 KB of in-system programmable flash memory.

Features:

1. 8-bit AVR CPU with a maximum operating frequency of 16 MHz
2. Up to 64 KB of in-system programmable flash memory
3. 44 general-purpose input/output (GPIO) pins
4. 4-channel, 8-bit analog-to-digital converter (ADC)
5. 2-channel, 8-bit digital-to-analog converter (DAC)
6. 2-channel, 16-bit timer/counter with input capture and output compare
7. 8-level deep stack-based interrupt system with 31 interrupt sources
8. On-chip debug system with JTAG interface
9. Internal and external oscillator support
10. I2C and SPI serial communication interfaces
11. USART for asynchronous serial communication
12. Power-on reset and brown-out detection circuitry
13. Sleep mode for low-power consumption

Applications:

The ATMEGA644P-20AQ is suitable for a wide range of applications due to its advanced features and high performance. Some common applications include:

1. Industrial control systems
2. Medical equipment
3. Consumer electronics
4. Home automation systems
5. Robotics
6. Data acquisition and signal processing
7. Motor control
8. Battery-powered devices
9. Embedded systems in automotive applications
10. IoT devices and smart sensors

The ATMEGA644P-20AQ's combination of high performance, low power consumption, and a wide range of communication interfaces make it a versatile choice for many embedded systems and IoT applications.

ATMEGA644P-20AQ Documents

Download datasheets and manufacturer documentation for ATMEGA644P-20AQ

Datasheets :

ATmega644P/V Summary       ATmega164_324_644P/V Appendix       ATmega164_324_644P/V Datasheet      

PCN Packaging :

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

Design Resources :

ATmega644 Development Tool Selector      

HTML Datasheet :

ATmega644P/V Summary       ATmega164_324_644P/V Datasheet      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       ATMEGA Datasheet 12/Dec/2018      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH