8-bit AVR microcontroller featuring 64KB FLASH memory and 4KB RAM. Operates at up to 16MHz with an internal oscillator. Offers 54 programmable I/O pins and interfaces including SPI and UART. Includes 3 timers/counters, watchdog timer, and peripherals like POR and PWM. Packaged in a 64-TQFP with tin-matte plating, suitable for surface mounting. Operates within a 1.8V to 5.5V supply voltage range and a temperature range of -40°C to 85°C.
Frequency16MHz
PackageA
MountingSurface Mount
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Technical Specifications
Microchip ATMEGA645A-AUR technical specifications.
General
Package/Case
A
Contact Plating
Tin, Matte
Core Architecture
AVR
Data Bus Width
8b
Frequency
16MHz
Interface
SPI, UART, USART
Lead Free
Lead Free
Max Frequency
16MHz
Max Operating Temperature
85°C
Memory Size
64KB
Memory Type
FLASH,
Min Operating Temperature
-40°C
Max Supply Voltage
5.5V
Min Supply Voltage
1.8V
Mount
Surface Mount
Number of I/Os
54
Number of Programmable I/O
54
Number of Timers/Counters
3
Oscillator Type
Internal
Package Quantity
1
Packaging
Tape and Reel
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
RAM Size
4KB
RoHS Compliant
Yes
Series
AVR® ATmega
Watchdog Timer
Yes
Compliance
RoHS
Compliant
Datasheet
Microchip ATMEGA645A-AUR Datasheet
Download the complete datasheet for Microchip ATMEGA645A-AUR to view detailed technical specifications.
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