Manufacturer Part Number
ATMEGA644-20AUR
Manufacturer
Microchip Technology
Introduction
8-Bit AVR Microcontroller with In-System Programmable Flash
Product Features and Performance
8-bit AVR Microcontroller
64KB In-system Programmable Flash
2KB EEPROM
4KB Internal SRAM
20MHz Max Speed
32 Programmable I/O Lines
Internal Oscillator
Product Advantages
High Performance RISC Architecture
Large Program Memory Space
Extensive Peripheral Set
Key Technical Parameters
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 32
Voltage Supply 2.7V to 5.5V
Data Converters A/D 8x10b
Operating Temperature -40°C to 85°C
Quality and Safety Features
Built-in Brown-out Detection
Power-on Reset Circuitry
Watchdog Timer with Separate On-chip Oscillator
Compatibility
Supports SPI, I2C, and UART Serial Communication Standards
Compatible with 44-TQFP 10x10 Mounting Footprint
Application Areas
Consumer Electronics
Automation and Control Systems
Automotive Industry
Internet of Things Devices
Product Lifecycle
Active Product
Ongoing Support with No Discontinuation Announced
Several Key Reasons to Choose This Product
Robust RISC Architecture Enhances Performance
Large Memory Capacities Facilitate Complex Applications
Comprehensive Peripheral Set Enables Versatile Design
Support for Wide Range of Supply Voltages Allows for Flexible Power Design
Extended Temperature Range for Reliability in Varying Environments
Ready-to-Use Development Tools from Manufacturer
Broad Community and Ecosystem Support