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Microchip ATMEGA644P-20PU, 8 bit AVR, ATMEGA644P Microcontroller, 20 MHz, 64kB FLASH, 40-Pin PDIP

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

Microchip ATMEGA644P-20PU, 8 bit AVR, ATMEGA644P Microcontroller, 20 MHz, 64kB FLASH, 40-Pin PDIP

The image is for reference only, please refer to product details and specifications

Bulk discount available

Subtotal (1 unit)*

TWD242.00

(exc. GST)

TWD254.10

(inc. GST)

FREE delivery for orders over NT$1,300.00

In Stock

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

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 9	TWD242.00
10 +	TWD237.00

*price indicative

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

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Microchip
	Product Type	Microcontroller
	Series	ATMEGA644P
	Package Type	PDIP
	Mount Type	Through Hole
	Pin Count	40
	Device Core	AVR
	Data Bus Width	8bit
	Program Memory Size	64kB
	Maximum Clock Frequency	20MHz
	RAM Size	4kB
	Maximum Supply Voltage	5.5V
	Minimum Operating Temperature	-40°C
	Analogue Comparators	1
	Number of Programmable I/Os	32
	Maximum Operating Temperature	85°C
	Standards/Approvals	No
	Width	13.97 mm
	Height	4.44mm
	Length	52.57mm
	Minimum Supply Voltage	2.7V
	ADCs	8 x 10 Bit
	Automotive Standard	No
	Program Memory Type	FLASH
	Distrelec Product Id	17325149
	Instruction Set Architecture	RISC
	Number of Timers	2

	Select all
	Brand Microchip
	Product Type Microcontroller
	Series ATMEGA644P
	Package Type PDIP
	Mount Type Through Hole
	Pin Count 40
	Device Core AVR
	Data Bus Width 8bit
	Program Memory Size 64kB
	Maximum Clock Frequency 20MHz
	RAM Size 4kB
	Maximum Supply Voltage 5.5V
	Minimum Operating Temperature -40°C
	Analogue Comparators 1
	Number of Programmable I/Os 32
	Maximum Operating Temperature 85°C
	Standards/Approvals No
	Width 13.97 mm
	Height 4.44mm
	Length 52.57mm
	Minimum Supply Voltage 2.7V
	ADCs 8 x 10 Bit
	Automotive Standard No
	Program Memory Type FLASH
	Distrelec Product Id 17325149
	Instruction Set Architecture RISC
	Number of Timers 2

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 ATMEGA644P-20PU, 8 bit AVR, ATMEGA644P Microcontroller, 20 MHz, 64kB FLASH, 40-Pin PDIP

FREE delivery for orders over NT$1,300.00

8-Bit PicoPower megaAVR Family Microcontrollers

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