Microchip Technology

ATMEGA644-20PU  

Microcontrollers

The ATMEGA644-20PU is a microcontroller unit (MCU) manufactured by Microchip Technology. It is a part of the ATmega family of 8-bit AVR microcontrollers, which are widely used in various applications due to their high performance, low power consumption, and ease of use.

Description:

The ATMEGA644-20PU is a high-performance, low-power microcontroller with an integrated 20 MHz CPU and 64 Kbytes of in-system programmable Flash memory. It features a rich set of communication interfaces, including a Universal Synchronous/Asynchronous Receiver/Transmitter (USART), Serial Peripheral Interface (SPI), and Inter-Integrated Circuit (I2C) bus. The device also includes a range of on-chip peripherals, such as timers, Pulse Width Modulation (PWM) controllers, and an 8-channel, 10-bit Analog-to-Digital Converter (ADC).

Features:

1. 8-bit AVR microcontroller with 20 MHz CPU
2. 64 Kbytes of in-system programmable Flash memory
3. 4 Kbytes of EEPROM
4. 4 Kbytes of SRAM
5. Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
6. Serial Peripheral Interface (SPI)
7. Inter-Integrated Circuit (I2C) bus
8. 8-channel, 10-bit Analog-to-Digital Converter (ADC)
9. Timers and Pulse Width Modulation (PWM) controllers
10. On-chip Debugging and Programming support
11. Low power consumption in various sleep modes
12. Wide operating voltage range (1.8V to 5.5V)
13. Small-outline integrated circuit (SOIC) package

Applications:

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

1. Industrial control systems
2. Home automation and building automation
3. Medical equipment and devices
4. Portable electronics and battery-powered devices
5. Data acquisition and signal processing systems
6. Motor control and power management
7. Embedded systems in consumer electronics
8. Security systems and access control devices
9. Telecommunication equipment
10. Automotive electronics

The ATMEGA644-20PU's combination of performance, memory, and communication interfaces make it a popular choice for developers looking to create efficient and reliable embedded systems.

ATMEGA644-20PU Documents

Download datasheets and manufacturer documentation for ATMEGA644-20PU

PCN Assembly/Origin :

Mult Dev Assembly 28/May/2020      

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       Copper Bonding Wire 17/Oct/2013      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH