Microchip, 8bit AVR, ATmega Microcontroller, 20MHz, 64 kB Flash, 44-Pin TQFP

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£4.71

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£5.65

(inc. VAT)

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  • 174 unit(s) shipping from 05 November 2025
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Packaging Options:
RS Stock No.:
131-0323
Distrelec Article No.:
301-13-663
Mfr. Part No.:
ATMEGA644PA-AU
Brand:
Microchip
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Brand

Microchip

Family Name

ATmega

Package Type

TQFP

Mounting Type

Surface Mount

Pin Count

44

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

64 kB

Maximum Frequency

20MHz

RAM Size

4 kB

USB Channels

0

Number of PWM Units

1

Number of SPI Channels

3

Number of CAN Channels

0

Number of UART Channels

2

Number of I2C Channels

1

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of USART Channels

2

Number of PCI Channels

0

Number of Ethernet Channels

0

Height

1.05mm

Width

10.1mm

Dimensions

10.1 x 10.1 x 1.05mm

Pulse Width Modulation

1 (6 Channel)

Number of LIN Channels

0

Program Memory Type

Flash

Minimum Operating Temperature

-40 °C

Instruction Set Architecture

RISC

Maximum Number of Ethernet Channels

0

ADCs

8 x 10 bit

Number of ADC Units

1

Length

10.1mm

Maximum Operating Temperature

+85 °C

8-Bit PicoPower megaAVR Family Microcontrollers


This range of megaAVR microcontrollers feature picoPower technology — perfect for energy saving. They offer generous program and data memories with performance of up to 20 MIPS.

Features & Benefits of picoPower megaAVR microcontrollers
•On-chip Flash
•SRAM
•Internal EEPROM
•SPI
•TWI (I²C)
•USART, USB, CAN & LIN interfaces
•Watchdog timer
•Precision oscillator
•GPIO pins
•ADC
•DAC
•Built-in temperature sensor
•Internal voltage reference
•Brown-out detector

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