Manufacturer Part Number
ATMEGA644-20MU
Manufacturer
Microchip Technology
Introduction
The ATMEGA644-20MU is an 8-bit high-performance microcontroller from Microchip's popular AVR ATmega series, designed for advanced embedded applications.
Product Features and Performance
Core Processor: AVR
Core Size: 8-Bit
Speed: 20MHz
Number of I/O: 32
Program Memory Size: 64KB (32K x 16)
Program Memory Type: FLASH
EEPROM Size: 2K x 8
RAM Size: 4K x 8
Connectivity includes I2C, SPI, UART/USART
Peripherals: Brown-out Detect/Reset, Power-on Reset (POR), Pulse Width Modulation (PWM), Watchdog Timer (WDT)
Data Converters: 8-channel, 10-bit Analog-to-Digital Converter
Oscillator Type: Internal
Product Advantages
Low power consumption with operating voltage range of 2.7V to 5.5V
Comprehensive security features including brown-out detect/reset
Consistent and reliable performance in temperature range from -40°C to 85°C
Enhanced connectivity options and powerful peripherals facilitate diverse applications
Key Technical Parameters
Operating Voltage: 2.7V ~ 5.5V
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
44-VQFN (7x7) package ensures compact mounting
Quality and Safety Features
Integrated Watchdog Timer for system reliability
Brown-out Detect/Reset ensures safe operation during low voltage conditions
Compatibility
Compatible with other devices in the AVR ATmega series for seamless integration in system design
Interoperable with I2C, SPI, UART/USART peripherals and protocols
Application Areas
Industrial automation
Home appliances
Consumer electronics
Automotive systems
Product Lifecycle
Current Product Status: Active
Continuously supported with no plans for discontinuation
Availability of replacements or upgrades as newer models are developed
Several Key Reasons to Choose This Product
Highly robust microcontroller with flexible voltage requirements and a wide operating temperature range
Significant memory capabilities including 64KB of flash memory with advanced security features
Extensive connectivity options supporting advanced peripherals ensure versatile application across various domains
Reliable product lifecycle with ongoing support and availability of upgrades contributing to future-proof technology investments