
For Reference Only
Part Number | ATMEGA644PA-MU |
OEMstron Part # | ATMEGA644PA-MU |
Manufacturer | Microchip Technology |
Category | Semiconductors › Embedded Processors & Controllers › Microcontrollers |
Description | IC MCU 8BIT 64KB FLASH 44VQFN |
Lifecycle | Active |
RoHS | No RoHS Information |
EDA/CAD Models | ATMEGA644PA-MU PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 17 - Mar 22 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
ATMEGA644PA-MU Specifications
Part Number | ATMEGA644PA-MU | |
Brand | Microchip Technology | |
Lifecycle | Active | |
RoHS | No RoHS Information | |
Product Line | Semiconductors | |
Category | Embedded Processors & Controllers | |
Subcategory | Microcontrollers | |
Manufacturer | Microchip Technology | |
Series | AVR® ATmega | |
Core Processor | AVR | |
Core Size | 8-Bit | |
Speed | 20MHz | |
Connectivity | I²C, SPI, UART/USART | |
Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | |
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 | |
Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V | |
Data Converters | A/D 8x10b | |
Oscillator Type | Internal | |
Operating Temperature | -40°C ~ 85°C (TA) | |
Mounting Type | Surface Mount | |
Package / Case | 44-VFQFN Exposed Pad | |
Supplier Device Package | 44-VQFN (7x7) |
ATMEGA644PA-MU Documents

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Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
ATMEGA644PA-MU D# V99:2348_07146011 Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP Tray RoHS: Compliant
|
Americas - 7 |
ATMEGA644PA-MUR D# V72:2272_07145879 Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP T/R RoHS: Compliant
|
Americas - 0 |
Part Number | Description | Stock |
ATMEGA644PA-MU D# ATMEGA644PA-MU Atmel Corporation |
MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP - Bulk (Alt: ATMEGA644PA-MU) |
Americas - 379 |
ATMEGA644PA-MUR D# 41AH8338 Microchip Technology Inc |
MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP T/R - Product that comes on tape, but is not reeled (Alt: 41AH8338) |
Americas - 3 |
Part Number | Description | Stock |
ATMEGA644PA-MUR D# ATMEGA644PA-MUR Microchip Technology Inc |
MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP T/R (Alt: ATMEGA644PA-MUR) |
Europe - 0 |
ATMEGA644PA-MU D# ATMEGA644PA-MU Microchip Technology Inc |
MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP (Alt: ATMEGA644PA-MU) |
Europe - 0 |
Part Number | Description | Stock |
ATMEGA644PA-MUR Atmel Corporation |
Atmel ATMEGA644PA-MUR |
44000 |
ATMEGA644PA-MU Atmel Corporation |
MCU, 8BIT, ATMEGA, 20MHZ, VQFN-44 |
208 |
Part Number | Description | Stock |
ATMEGA644PA-MUR D# ATMEGA644PA-MURCT-ND Microchip Technology Inc |
IC MCU 8BIT 64KB FLASH 44VQFN |
957 In Stock |
ATMEGA644PA-MU D# ATMEGA644PA-MU-ND Microchip Technology Inc |
IC MCU 8BIT 64KB FLASH 44VQFN |
95 In Stock |
Part Number | Description | Stock |
ATMEGA644PA-MU Microchip Technology Inc |
In stock shipping within 2days |
30525 |
Part Number | Description | Stock |
ATMEGA644PA-MUR D# 2774973 Microchip Technology Inc |
MCU, 8BIT, 20MHZ, VQFN-44 RoHS: Compliant
Min Qty: 1
Container: Each
|
1949 |
ATMEGA644PA-MU D# 2318834 Microchip Technology Inc |
MCU, 8BIT, ATMEGA, 20MHZ, VQFN-44 RoHS: Compliant
Min Qty: 1
Container: Each
|
157 |
Part Number | Description | Stock |
ATMEGA644PA-MUR Microchip Technology Inc |
20 MHz, MLF/QFN, Ind Temp, Green, T&R RoHS: Compliant
pbFree: Yes
|
0 Reel |
ATMEGA644PA-MU Microchip Technology Inc |
ATmega Series 64 KB Flash 4 KB SRAM 20 MHz 8-Bit Microcontroller - QFN-44 RoHS: Compliant
pbFree: Yes
|
0 Tray |
Part Number | Description | Stock |
ATMEGA644PAMUR |
OEM/CM QUOTES ONLY | NO BROKERS |
5750 |
ATMEGA644PAMU Micro Commercial Components |
OEM/CM QUOTES ONLY | NO BROKERS |
22476 |
Part Number | Description | Stock |
ATMEGA644PA-MU Atmel Corporation |
in stock - can ship the same day |
25 |
Part Number | Description | Stock |
ATMEGA644PA-MU Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP Tray RoHS: Not Compliant
|
1770 On Order |
Part Number | Description | Stock |
ATMEGA644PA-MU D# ATMEGA644PA-MU Microchip Technology Inc |
20 MHz QFN/MLF Ind. Temp Green RoHS: Compliant
pbFree: Yes
|
Temporarily Out of Stock – Alternates Available |
ATMEGA644PA-MUR D# ATMEGA644PA-MUR Microchip Technology Inc |
20 MHz MLF/QFN Ind Temp Green T&R RoHS: Compliant
pbFree: Yes
|
11594 - Alternates Available |
Part Number | Description | Stock |
ATMEGA644PA-MUR Atmel Corporation |
OEM/CM Immediate delivery |
3108 |
ATMEGA644PA-MU Atmel Corporation |
OEM/CM Immediate delivery |
2300 |
Part Number | Description | Stock |
ATMEGA644PA-MU D# 556-ATMEGA644PA-MU Microchip Technology Inc |
8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins RoHS: Compliant
|
291 |
ATMEGA644PA-MUR D# 556-ATMEGA644PA-MUR Microchip Technology Inc |
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB RAM-20MHz IND RoHS: Compliant
|
790 |
Part Number | Description | Stock |
ATMEGA644PA-MUR Microchip Technology Inc |
20 MHz, MLF/QFN, Ind Temp, Green, T&R - Package: 44 VQFN 7x7x1mm T/R RoHS: Compliant
|
0 in Stock 0 on Order |
ATMEGA644PA-MU Microchip Technology Inc |
20 MHz, QFN/MLF, Ind. Temp, Green - Package: 44 VQFN 7x7x1mm TRAY RoHS: Compliant
|
0 in Stock 0 on Order |
Part Number | Description | Stock |
ATMEGA644PA-MU D# MCHP00000005689 Microchip Technology Inc |
20 MHz, QFN/MLF, Ind. Temp, Green - Package: 44 VQFN 7x7x1mm TRAY |
0 |
ATMEGA644PA-MUR D# MCHP00000005690 Microchip Technology Inc |
20 MHz, MLF/QFN, Ind Temp, Green, T&R - Package: 44 VQFN 7x7x1mm T/R |
0 |
Part Number | Description | Stock |
ATMEGA644PA-MU D# 84AC0760 Microchip Technology Inc |
20 MHZ, QFN/MLF, IND. TEMP, GREEN ROHS COMPLIANT: YES RoHS: Compliant
Min Qty: 360
Container: Bulk
|
0 |
ATMEGA644PA-MUR D# 68T3124 Microchip Technology Inc |
20 MHZ, MLF/QFN, IND TEMP, GREEN, T&R, 44 VQFN 7X7X1MM T/R ROHS COMPLIANT: YES RoHS: Compliant
Min Qty: 4000
Container: TAPE & REEL - FULL
|
0 |
Part Number | Description | Stock |
ATMEGA644PA-MU D# NS-ATMEGA644PA-MU Atmel Corporation |
OEM/CM ONLY |
1233 |
ATMEGA644PA-MUR D# NS-ATMEGA644PA-MUR Atmel Corporation |
OEM/CM ONLY |
8191 |
Part Number | Description | Stock |
ATMEGA644PA-MU Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP Tray RoHS: Not Compliant
|
1770 On Order |
Part Number | Description | Stock |
ATMEGA644PA-MU D# 1310324 Microchip Technology Inc |
Microchip ATMEGA644PA-MU, 8bit AVR Microcontroller, ATmega, 20MHz, 64 kB Flash, 44-Pin VQFN, EA Min Qty: 1
Container: Bulk
|
122 |
Part Number | Description | Stock |
ATMEGA644PA-MU Atmel Corporation |
ATMEGA644 - RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU RoHS: Compliant
|
379 |
Part Number | Description | Stock |
ATMEGA644PAMUR Atmel Corporation |
OEM/CM ONLY |
6016 |
ATMEGA644PAMU Atmel Corporation |
OEM/CM ONLY |
11284 |
Part Number | Description | Stock |
ATMEGA644PA-MU Atmel Corporation |
IN stock Immediate delivery |
2315 |
ATMEGA644PA-MUR Atmel Corporation |
IN stock Immediate delivery |
3123 |
Part Number | Description | Stock |
ATMEGA644PA-MU Atmel Corporation |
shipping today |
226 |
ATMEGA644PA-MUR Atmel Corporation |
shipping today |
4950 |
Part Number | Description | Stock |
ATMEGA644PA-MU D# 31924791 Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin VQFN EP Tray RoHS: Compliant
|
Americas - 7 |
Part Number | Description | Stock |
ATMEGA644PA-MU Atmel Corporation |
IC MCU 8BIT 64KB FLASH 44VQFN |
870 |
ATMEGA644PA-MUR Atmel Corporation |
IC MCU 8BIT 64KB FLASH 44VQFN |
4695 |
Part Number | Description | Stock |
ATMEGA644PA-MUR D# 3360181 Microchip Technology Inc |
MCU, 8BIT, 20MHZ, VQFN-44 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
3 |
ATMEGA644PA-MU D# 2318834 Microchip Technology Inc |
MCU, 8BIT, ATMEGA, 20MHZ, VQFN-44 RoHS: Compliant
Min Qty: 1
Container: Each
|
157 |
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Quick Inquiry
In Stock | 1,871 - More on Order |
---|---|
Quote Limit | No Limit |
Lead-Time | To be Confirmed |
Minimum | 1 |
Add to Shopping Cart
Pricing (USD)
Qty. | Unit Price | Ext. Price |
---|---|---|
1 | $ 6.9691 | $ 6.9691 |
100 | $ 6.9691 | $ 696.9100 |
500 | $ 6.9691 | $ 3,484.5500 |
1000 | $ 6.9691 | $ 6,969.1000 |
2500 | $ 6.9691 | $ 17,422.7500 |
OEMstron will offer the most competitive prices for you, please refer to the quotations.
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