
For Reference Only
Part Number | ATMEGA644P-20AQ |
OEMstron Part # | ATMEGA644P-20AQ |
Manufacturer | Microchip Technology |
Category | Semiconductors › Embedded Processors & Controllers › Microcontrollers |
Description | IC MCU 8BIT 64KB FLASH 44TQFP |
Lifecycle | Active |
RoHS | No RoHS Information |
EDA/CAD Models | ATMEGA644P-20AQ PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 18 - Mar 23 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
ATMEGA644P-20AQ Specifications
Part Number | ATMEGA644P-20AQ | |
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) | 2.7V ~ 5.5V | |
Data Converters | A/D 8x10b | |
Oscillator Type | Internal | |
Operating Temperature | -40°C ~ 105°C (TA) | |
Mounting Type | Surface Mount | |
Package / Case | 44-TQFP | |
Supplier Device Package | 44-TQFP (10x10) |
ATMEGA644P-20AQ Documents

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Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
ATMEGA644P-20AQR D# V72:2272_07146949 Microchip Technology Inc |
MCU 8-bit AVR RISC 64KB Flash 3.3V/5V 44-Pin TQFP T/R RoHS: Compliant
|
Americas - 0 |
Part Number | Description | Stock |
ATMEGA644P-20AQR D# ATMEGA644P-20AQR Microchip Technology Inc |
MCU 8-Bit ATmega AVR RISC 64KB Flash 3.3V/5V 44-Pin TQFP T/R - Tape and Reel (Alt: ATMEGA644P-20AQR) RoHS: Compliant
|
Americas - 0 |
ATMEGA644P-20AQ D# ATMEGA644P-20AQ Atmel Corporation |
MCU 8-bit ATmega AVR RISC 64KB Flash 3.3V/5V 44-Pin TQFP - Bulk (Alt: ATMEGA644P-20AQ) |
Americas - 13839 |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# ATMEGA644P-20AQ Microchip Technology Inc |
MCU 8-bit ATmega AVR RISC 64KB Flash 3.3V/5V 44-Pin TQFP (Alt: ATMEGA644P-20AQ) |
Europe - 0 |
ATMEGA644P-20AQR D# ATMEGA644P-20AQR Microchip Technology Inc |
MCU 8-Bit ATmega AVR RISC 64KB Flash 3.3V/5V 44-Pin TQFP T/R (Alt: ATMEGA644P-20AQR) |
Europe - 0 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Atmel Corporation |
25 |
Part Number | Description | Stock |
ATMEGA644P-20AQR Atmel Corporation |
IC MCU 8BIT 64KB FLASH 44TQFP |
Contact Us |
ATMEGA644P-20AQ Atmel Corporation |
IC MCU 8BIT 64KB FLASH 44TQFP |
565 |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# 2156-ATMEGA644P-20AQ-ND Rochester Electronics LLC |
IC MCU 8BIT 64KB FLASH 44TQFP |
13839 In Stock |
ATMEGA644P-20AQR D# ATMEGA644P-20AQRCT-ND Microchip Technology Inc |
IC MCU 8BIT 64KB FLASH 44TQFP |
1960 In Stock |
Part Number | Description | Stock |
ATMEGA644P-20AQ Microchip Technology Inc |
In stock shipping within 2days |
21768 |
ATMEGA644P-20AQR Microchip Technology Inc |
In stock shipping within 2days |
21769 |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# 3628788 Microchip Technology Inc |
MICROCONTROLLERS (MCU) - 8 BIT RoHS: Compliant
Min Qty: 160
Container: Each
|
0 |
ATMEGA644P-20AQR D# 2810005RL Microchip Technology Inc |
MCU, 8BIT, AVR, 20MHZ, TQFP-44 RoHS: Compliant
Min Qty: 1
Container: Reel
|
0 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Microchip Technology Inc |
RoHS: Compliant
pbFree: Yes
|
0 |
ATMEGA644P-20AQR Microchip Technology Inc |
RoHS: Compliant
pbFree: Yes
|
0 |
Part Number | Description | Stock |
ATMEGA644P20AQ |
OEM/CM QUOTES ONLY | NO BROKERS |
575 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Atmel Corporation |
In stock |
25 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Microchip Technology Inc |
RoHS: Not Compliant
|
0 |
ATMEGA644P-20AQR Microchip Technology Inc |
RoHS: Not Compliant
|
0 |
Part Number | Description | Stock |
ATMEGA644P-20AQR D# ATMEGA644P-20AQR Microchip Technology Inc |
20MHZ QFN/MLF IND TEMP GREEN 5V T&R RoHS: Compliant
pbFree: Yes
|
2000 - Alternates Available |
ATMEGA644P-20AQ D# ATMEGA644P-20AQ Microchip Technology Inc |
20 MHZ TQFP Ext Temp Green 5V RoHS: Compliant
pbFree: Yes
|
960 - Alternates Available |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# 556-ATMEGA644P-20AQ Microchip Technology Inc |
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V RoHS: Compliant
|
111 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Microchip Technology Inc |
20 MHZ, TQFP, Ext Temp, Green, 5V - Package: 44 TQFP 10x10x1mm TRAY RoHS: Compliant
|
0 in Stock 0 on Order |
ATMEGA644P-20AQR Microchip Technology Inc |
20MHZ, QFN/MLF, IND TEMP, GREEN, 5V, T&R - Package: 44 TQFP 10x10x1mm T/R RoHS: Compliant
|
0 in Stock 0 on Order |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# MCHP00000005673 Microchip Technology Inc |
20 MHZ, TQFP, Ext Temp, Green, 5V - Package: 44 TQFP 10x10x1mm TRAY |
0 |
ATMEGA644P-20AQR D# MCHP00000005674 Microchip Technology Inc |
20MHZ, QFN/MLF, IND TEMP, GREEN, 5V, T&R - Package: 44 TQFP 10x10x1mm T/R |
0 |
Part Number | Description | Stock |
ATMEGA644P-20AQR D# 68T3109 Microchip Technology Inc |
20MHZ, QFN/MLF, IND TEMP, GREEN, 5V, T&R, 44 TQFP 10X10X1MM T/R ROHS COMPLIANT: YES RoHS: Compliant
Min Qty: 2000
Container: TAPE & REEL - FULL
|
0 |
ATMEGA644P-20AQ D# 68T3108 Microchip Technology Inc |
MICROCONTROLLER MCU, 8 BIT, ATMEGA, 20MHZ, TQFP-44, Product Range:ATMega Microcontrollers, CPU Speed:20MHz, Program Memory Size:64KB, RAM Memory Size:4KB, No. of Pins:44Pins, MCU Case Style:TQFP, No. of I/O s:32I/O s, MSL:- RoHS Compliant: Yes RoHS: Compliant
Min Qty: 160
Container: Bulk
|
0 |
Part Number | Description | Stock |
ATMEGA644P-20AQ D# NS-ATMEGA644P-20AQ Atmel Corporation |
OEM/CM ONLY |
6911 |
ATMEGA644P-20AQR D# NS-ATMEGA644P-20AQR Atmel Corporation |
OEM/CM ONLY |
7027 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Microchip Technology Inc |
RoHS: Not Compliant
|
0 |
ATMEGA644P-20AQR Microchip Technology Inc |
RoHS: Not Compliant
|
0 |
Part Number | Description | Stock |
ATMEGA644P-20AQ Atmel Corporation |
ATMEGA644 - RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU RoHS: Not Compliant
pbFree: No
|
13839 |
Part Number | Description | Stock |
ATMEGA644P20AQ Atmel Corporation |
OEM/CM ONLY |
158 |
Part Number | Description | Stock |
ATMEGA644P-20AQR D# 2810005 Microchip Technology Inc |
MCU, 8BIT, AVR, 20MHZ, TQFP-44 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
0 |
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Quick Inquiry
In Stock | 378 - More on Order |
---|---|
Quote Limit | No Limit |
Lead-Time | Can Ship Immediately |
Minimum | 1 |
Add to Shopping Cart
Pricing (USD)
Qty. | Unit Price | Ext. Price |
---|---|---|
1 | $ 6.5862 | $ 6.5862 |
100 | $ 6.5862 | $ 658.6200 |
500 | $ 6.5862 | $ 3,293.1000 |
1000 | $ 6.5862 | $ 6,586.2000 |
2500 | $ 6.5862 | $ 16,465.5000 |
OEMstron will offer the most competitive prices for you, please refer to the quotations.
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