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

Subtotal (1 pack of 2 units)*

HK$87.10

Add to Basket
Select or type quantity
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 +HK$43.55HK$87.10

*price indicative

RS Stock No.:
127-6628
Mfr. Part No.:
AT89C55WD-24PU
Manufacturer:
Microchip
Find similar products by selecting one or more attributes.
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

Typical Operating Supply Voltage

4 → 5.5 V

Number of UART Channels

1

Number of CAN Channels

0

Number of Ethernet Channels

0

Program Memory Type

Flash

Instruction Set Architecture

CISC

Length

52.57mm

ADCs

0

Maximum Number of Ethernet Channels

0

Height

4.44mm

Minimum Operating Temperature

-40 °C

Number of ADC Units

0

Maximum Operating Temperature

+85 °C

Dimensions

52.57 x 13.97 x 4.44mm

Pulse Width Modulation

0

Width

13.97mm

8051 Architecture Flash (Reprogrammable) Microcontrollers


Atmel offers 8051 reprogrammable flash microcontrollers with programmable and erasable read-only memory, using high-density non-volatile memory technology.

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



8051 Architecture Microcontrollers


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


Single Cycle Core
Flash ISP (In-System Programmable)
Flash (Reprogrammable)
CAN Networking MCUs
USB MCUs
ROMless

Related links