Manufacturer Part Number
ATMEGA644A-MUR
Manufacturer
Microchip Technology
Introduction
ATMEGA644A-MUR is an 8-Bit AVR® microcontroller tailored for embedded applications.
Product Features and Performance
Core Processor: AVR
Core Size: 8-Bit for efficient processing
Speed: 20MHz providing quick operations
Programmability with flash memory
Enhanced power-saving features
Product Advantages
Integration of multiple connectivity options such as I2C, SPI, UART/USART
Comes with essential peripherals like Brown-out Detect/Reset, POR, PWM, WDT
Adequate I/O ports with 32 available lines
Sufficient program memory size of 64KB
Non-volatile EEPROM Size of 2K x 8
RAM Size of 4K x 8 for temporary data storage
Wide voltage supply range accommodating various power sources
Key Technical Parameters
Program Memory Size: 64KB (32K x 16)
EEPROM Size: 2K x 8
RAM Size: 4K x 8
Number of I/O: 32
Voltage Supply (Vcc/Vdd): 1.8V ~ 5.5V
Data Converters: A/D 8x10b
Oscillator Type: Internal
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
On-chip Brown-out Detect/Reset ensures reliable operation under unstable power conditions
Watchdog Timer (WDT) helps in system recovery from software malfunctions
Compatibility
Compatible with various interface standards such as I2C, SPI, UART/USART
Mounting Type: Surface Mount with a 44-VQFN package
Application Areas
Ideal for industrial control systems, home automation, automotive, and consumer electronics
Product Lifecycle
Currently active with no immediate discontinuation expected
Replacement or upgrade models available for future scalability
Several Key Reasons to Choose This Product
Robust operating temperature range suiting demanding environments
Supports an array of peripherals minimizing additional component requirements
High integration helps in reducing the overall system costs
Versatility in interfacing with various connectivity options
Microchip's reputation for long-term support and product availability