ATMEGA644-20MUR is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $7.19000
Datasheet
AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-VQFN (7x7)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-VQFN (7x7)
Microchip Ethernet of Everything | Digi-Key Daily

ATMEGA644-20MUR

DigiKey Part Number
ATMEGA644-20MURTR-ND - Tape & Reel (TR)
ATMEGA644-20MURCT-ND - Cut Tape (CT)
ATMEGA644-20MURDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
ATMEGA644-20MUR
Description
IC MCU 8BIT 64KB FLASH 44VQFN
Manufacturer Standard Lead Time
8 Weeks
Customer Reference
Detailed Description
AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-VQFN (7x7)
Datasheet
 Datasheet
EDA/CAD Models
ATMEGA644-20MUR Models
Product Attributes
Filter Similar Products
Category
Program Memory Size
Mfr
Program Memory Type
FLASH
Series
EEPROM Size
2K x 8
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
RAM Size
4K x 8
Part Status
Active
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
DigiKey Programmable
Not Verified
Data Converters
A/D 8x10b
Core Processor
AVR
Oscillator Type
Internal
Core Size
8-Bit
Operating Temperature
-40°C ~ 85°C (TA)
Speed
20MHz
Mounting Type
Surface Mount
Connectivity
I2C, SPI, UART/USART
Supplier Device Package
44-VQFN (7x7)
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Package / Case
44-VFQFN Exposed Pad
Number of I/O
32
Base Product Number
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
ATMEGA644P-20MURMicrochip Technology0ATMEGA644P-20MURTR-ND$7.19000Parametric Equivalent
In-Stock: 0
4,000 estimated in stock on 14-Dec-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$7.02000$7.02
25$6.43000$160.75
100$5.81000$581.00
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
4,000$5.81004$23,240.16
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.