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

RS Stock No.:: 131-0322
Distrelec Article No.:: 173-25-149
Mfr. Part No.:: ATMEGA644P-20PU
Manufacturer:: Microchip

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

Bulk discount available

Subtotal (1 unit)*

SGD10.50

(exc. GST)

SGD11.44

(inc. GST)

FREE delivery for orders over $150, or create a business account to enjoy free delivery from just $28

In Stock

19 unit(s) ready to ship from another location
Plus 170 unit(s) shipping from 12 December 2025

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Units	Per unit
1 - 9	SGD10.50
10 - 24	SGD10.08
25 - 99	SGD9.66
100 +	SGD9.45

*price indicative

RS Stock No.:: 131-0322
Distrelec Article No.:: 173-25-149
Mfr. Part No.:: ATMEGA644P-20PU
Manufacturer:: Microchip

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	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 I2C Channels	1
	Typical Operating Supply Voltage	2.7 → 5.5 V
	Number of CAN Channels	0
	Number of USART Channels	2
	Number of UART Channels	2
	Number of Ethernet Channels	0
	Number of LIN Channels	0
	Height	4.44mm
	Width	13.97mm
	Dimensions	52.57 x 13.97 x 4.44mm
	Instruction Set Architecture	RISC
	Minimum Operating Temperature	-40 °C
	Program Memory Type	Flash
	Number of PCI Channels	0
	Pulse Width Modulation	1 (6 Channel)
	Maximum Operating Temperature	+85 °C
	Maximum Number of Ethernet Channels	0
	Number of ADC Units	1
	ADCs	8 x 10 bit
	Length	52.57mm

	Select all
	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 I2C Channels 1
	Typical Operating Supply Voltage 2.7 → 5.5 V
	Number of CAN Channels 0
	Number of USART Channels 2
	Number of UART Channels 2
	Number of Ethernet Channels 0
	Number of LIN Channels 0
	Height 4.44mm
	Width 13.97mm
	Dimensions 52.57 x 13.97 x 4.44mm
	Instruction Set Architecture RISC
	Minimum Operating Temperature -40 °C
	Program Memory Type Flash
	Number of PCI Channels 0
	Pulse Width Modulation 1 (6 Channel)
	Maximum Operating Temperature +85 °C
	Maximum Number of Ethernet Channels 0
	Number of ADC Units 1
	ADCs 8 x 10 bit
	Length 52.57mm

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

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

FREE delivery for orders over $150, or create a business account to enjoy free delivery from just $28

8-Bit PicoPower megaAVR Family Microcontrollers

For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.

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