8-bit AVR microcontroller featuring 64KB FLASH memory and 4KB RAM. Operates at up to 20MHz with an 8-bit address and data bus. Offers 32 I/Os, 8 ADC channels, 6 PWM channels, and 3 timers/counters. Supports I2C, SPI, and UART/USART interfaces. Packaged in a 40-pin DIP for through-hole mounting, with an operating temperature range of -40°C to 85°C.
Frequency20MHz
PackageDIP
MountingThrough Hole
Quick Jump:
Technical Specifications
Microchip ATMEGA644P-20PU technical specifications.
General
Access Time
20us
Address Bus Width
8b
Package/Case
DIP
Core Architecture
AVR
Data Bus Width
8b
Frequency
20MHz
Height
4.826mm
Interface
I2C, SPI, UART, USART
Lead Free
Lead Free
Length
52.58mm
Max Frequency
20MHz
Max Operating Temperature
85°C
Max Supply Voltage
5.5V
Memory Size
64KB
Memory Type
FLASH,
Min Operating Temperature
-40°C
Min Supply Voltage
2.7V
Mount
Through Hole
Number of ADC Channels
8
Number of I/Os
32
Number of I2C Channels
1
Number of PWM Channels
6
Number of SPI Channels
1
Number of Timers/Counters
3
Oscillator Type
Internal
Packaging
Rail/Tube
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
RAM Size
4KB
Reach SVHC Compliant
No
RoHS Compliant
Yes
Series
AVR® ATmega
Watchdog Timer
Yes
Width
13.97mm
Compliance
RoHS
Compliant
Datasheet
Microchip ATMEGA644P-20PU Datasheet
Download the complete datasheet for Microchip ATMEGA644P-20PU to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.
Product Images
