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

Subtotal 1 unit (supplied in a tray)*

£4.52

(exc. VAT)

£5.42

(inc. VAT)

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  • 999,999,999 unit(s) shipping from 11 November 2025
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Packaging Options:
RS Stock No.:
131-0317P
Mfr. Part No.:
ATMEGA644A-MU
Brand:
Microchip
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Brand

Microchip

Family Name

ATmega

Package Type

VQFN

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 USART Channels

2

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of I2C Channels

1

Number of UART Channels

2

Maximum Number of Ethernet Channels

0

Number of PCI Channels

0

Number of LIN Channels

0

Height

0.95mm

Dimensions

7.1 x 7.1 x 0.95mm

Pulse Width Modulation

1 (6 Channel)

Number of Ethernet Channels

0

Instruction Set Architecture

RISC

Minimum Operating Temperature

-40 °C

ADCs

8 x 10 bit

Program Memory Type

Flash

Maximum Operating Temperature

+85 °C

Number of ADC Units

1

Length

7.1mm

Width

7.1mm

8-Bit megaAVR Microcontrollers, 32KB to 256KB Flash


Here at RS Components we have various megaAVR 8-bit microcontrollers from Atmel. Each of the microcontrollers is based on an enhanced RISC architecture and feature QTouch library support. All the microcontroller types have varying Kb of In-System Programmable Flash, EEPROM and SRAM as well as varying pin and package types.

Types of megaAVR 8-bit microcontrollers
•ATmega32
•ATmega64
•ATmega128
•ATmega324
•ATmega325
•ATmega406
•ATmega640
•ATmega644
•ATmega645
•ATmega1280
•ATmega1281
•ATmega1284
•ATmega2560
•ATmega2561
•ATmega3250
•ATmega6450