Microchip, 8bit AVR, ATmega Microcontroller, 20MHz, 64 kB Flash, 40-Pin PDIP

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Subtotal 25 units (supplied in a tube)*

£117.00

(exc. VAT)

£140.50

(inc. VAT)

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  • Shipping from 27 November 2025
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Units
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25 - 99£4.68
100 +£4.50

*price indicative

Packaging Options:
RS Stock No.:
131-0318P
Mfr. Part No.:
ATMEGA644A-PU
Brand:
Microchip
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Brand

Microchip

Family Name

ATmega

Package Type

PDIP

Mounting Type

Through Hole

Pin Count

40

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 USART Channels

2

Number of CAN Channels

0

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of I2C Channels

1

Number of UART Channels

2

Height

4.44mm

Number of LIN Channels

0

Program Memory Type

Flash

Minimum Operating Temperature

-40 °C

Number of PCI Channels

0

Number of Ethernet Channels

0

Length

52.57mm

ADCs

8 x 10 bit

Maximum Number of Ethernet Channels

0

Maximum Operating Temperature

+85 °C

Instruction Set Architecture

RISC

Number of ADC Units

1

Width

13.97mm

Dimensions

52.57 x 13.97 x 4.44mm

Pulse Width Modulation

1 (6 Channel)

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