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Microchip, 8bit 8051, AT89 Microcontroller, 24MHz, 20 kB Flash, 40-Pin PDIP

RS stock no.:: 127-6628
Mfr. Part No.:: AT89C55WD-24PU
Manufacturer:: Microchip

Microchip, 8bit 8051, AT89 Microcontroller, 24MHz, 20 kB Flash, 40-Pin PDIP

Bulk discount available

Subtotal (1 pack of 2 units)*

R 178,98

(exc. VAT)

R 205,82

(inc. VAT)

FREE delivery for orders over R 1,500.00

In Stock

Plus 2,602 unit(s) shipping from 08 December 2025

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

Units	Per unit	Per Pack*
2 - 8	R 89.49	R 178.98
10 - 48	R 87.255	R 174.51
50 - 98	R 84.635	R 169.27
100 - 498	R 81.25	R 162.50
500 +	R 78.00	R 156.00

*price indicative

RS stock no.:: 127-6628
Mfr. Part No.:: AT89C55WD-24PU
Manufacturer:: Microchip

Specification

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	AT89
	Package Type	PDIP
	Mounting Type	Through Hole
	Pin Count	40
	Device Core	8051
	Data Bus Width	8bit
	Program Memory Size	20 kB
	Maximum Frequency	24MHz
	RAM Size	256 B
	USB Channels	0
	Number of PWM Units	0
	Number of SPI Channels	0
	Number of UART Channels	1
	Typical Operating Supply Voltage	4 → 5.5 V
	Number of CAN Channels	0
	Minimum Operating Temperature	-40 °C
	Dimensions	52.57 x 13.97 x 4.44mm
	Instruction Set Architecture	CISC
	Pulse Width Modulation	0
	Height	4.44mm
	Program Memory Type	Flash
	Number of Ethernet Channels	0
	Maximum Operating Temperature	+85 °C
	Number of ADC Units	0
	Length	52.57mm
	Maximum Number of Ethernet Channels	0
	Width	13.97mm
	ADCs	0

	Select all
	Brand Microchip
	Family Name AT89
	Package Type PDIP
	Mounting Type Through Hole
	Pin Count 40
	Device Core 8051
	Data Bus Width 8bit
	Program Memory Size 20 kB
	Maximum Frequency 24MHz
	RAM Size 256 B
	USB Channels 0
	Number of PWM Units 0
	Number of SPI Channels 0
	Number of UART Channels 1
	Typical Operating Supply Voltage 4 → 5.5 V
	Number of CAN Channels 0
	Minimum Operating Temperature -40 °C
	Dimensions 52.57 x 13.97 x 4.44mm
	Instruction Set Architecture CISC
	Pulse Width Modulation 0
	Height 4.44mm
	Program Memory Type Flash
	Number of Ethernet Channels 0
	Maximum Operating Temperature +85 °C
	Number of ADC Units 0
	Length 52.57mm
	Maximum Number of Ethernet Channels 0
	Width 13.97mm
	ADCs 0

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Atmel's 8-bit microcontrollers (MCUs) based on the 8051 instruction set, combine proven technology with the latest features and functionality, with all featuring advanced flash memory.

Device Family

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ROMless

Microchip, 8bit 8051, AT89 Microcontroller, 24MHz, 20 kB Flash, 40-Pin PDIP

FREE delivery for orders over R 1,500.00

8051 Architecture Flash (Reprogrammable) Microcontrollers

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