8-bit AVR microcontroller featuring 64KB FLASH memory and 4KB RAM. Operates at up to 20MHz with an internal oscillator. Supports I2C, SPI, and UART/USART interfaces, with 32 I/O pins. Includes 3 timers/counters and peripherals like Brown-out Detect/Reset, POR, PWM, and WDT. Packaged in a 44-pin VQFN surface mount tape and reel, this RoHS compliant component operates from 1.8V to 5.5V and a temperature range of -40°C to 85°C.
Frequency20MHz
PackageVQFN
MountingSurface Mount
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Technical Specifications
Microchip ATMEGA644A-MUR technical specifications.
General
| Package/Case | VQFN |
| Core Architecture | AVR |
| Frequency | 20MHz |
| Interface | I2C, SPI, UART, USART |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 5.5V |
| Memory Size | 64KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 1.8V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Timers/Counters | 3 |
| Oscillator Type | Internal |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| RAM Size | 4KB |
| RoHS Compliant | Yes |
| Series | AVR® ATmega |
Compliance
| RoHS | Compliant |
Datasheet
Microchip ATMEGA644A-MUR Datasheet
Download the complete datasheet for Microchip ATMEGA644A-MUR to view detailed technical specifications.
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