AT89C55WD-24PU

Symbol Micros: 89c55wd-24pu
Contractor Symbol:
Case : PDIP40
8-bit MCU; 20kB-FL; 256B-RAM; 32 I/O; 4V~5,5V; 24MHz; UART; -40°C ~ 85°C; Replacement for: AT89C55WD-24PC, AT89C55WD-24PI
Parameters
Manufacturer: MICROCHIP
Architecture: 8-bit
FLASH memory: 20kB
RAM memory: 256B
Number of I/O: 32
Supply voltage range: 4V~5,5V
Frequency: 24,000MHz
Manufacturer:: Microchip Manufacturer part number: AT89C55WD-24PU RoHS Case style: PDIP40 Datasheet
In stock:
0 pcs.
Quantity of pcs. 1+ 3+ 10+ 30+ 100+
Net price (EUR) 4,9989 4,6059 4,3635 4,2411 4,1658
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Packaging:
10/200
Manufacturer:: Microchip Manufacturer part number: AT89C55WD-24PU Case style: PDIP40  
External warehouse:
10 pcs.
Quantity of pcs. 1+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 7,3208
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Packaging:
1
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Manufacturer:: Microchip Manufacturer part number: AT89C55WD-24PU Case style: PDIP40  
External warehouse:
40 pcs.
Quantity of pcs. 30+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 4,5142
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Packaging:
10
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Manufacturer:: Microchip Manufacturer part number: AT89C55WD-24PU Case style: PDIP40  
External warehouse:
490 pcs.
Quantity of pcs. 5+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 5,6034
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Packaging:
5
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
         
 
Item in delivery
Estimated date:
2025-11-30
Quantity of pcs.: 150
         
 
Item in delivery
Estimated date:
2026-01-20
Quantity of pcs.: 400
Manufacturer: MICROCHIP
Architecture: 8-bit
FLASH memory: 20kB
RAM memory: 256B
Number of I/O: 32
Supply voltage range: 4V~5,5V
Frequency: 24,000MHz
ADC: NO
DAC: NO
UART/USART interface: YES
SPI interface: NO
TWI (I2C) interface: NO
CAN interface: NO
ETHERNET interface: NO
USB interface: NO
Encryption: NO
Operating temperature (range): -40°C ~ 85°C
Case: PDIP40
Detailed description

AT89C55WD-24PU Microcontroller

The AT89C55WD-24PU is a high-performance 8-bit CMOS microcontroller from the MCS-51 family, manufactured by Microchip (formerly Atmel). This component is based on an enhanced 8051/8052 architecture and offers increased Flash program memory of 20 KB. It is an ideal solution for designers requiring a proven, reliable platform with extensive peripheral resources, such as three 16-bit timers. The -PU version comes in a 40-pin PDIP package, suitable for through-hole mounting.

Key Features and Specifications of the AT89C55WD-24PU Microcontroller

The most important technical parameters of the AT89C55WD-24PU, which determine its high flexibility and performance in embedded systems, include:

  • Architecture: 8-bit processor compatible with the 80C51/80C52 family.
  • Program Memory (Flash): 20 KB built-in Flash memory with In-System Programming and a long endurance of 10,000 write/erase cycles.
  • Data Memory (RAM): Integrated 256-byte SRAM.
  • Clock Speed: Maximum frequency up to 24 MHz.
  • I/O Lines: 32 general-purpose programmable input/output lines.
  • Peripherals: Three 16-bit timers/counters, programmable UART serial port, hardware Watchdog Timer.
  • Supply Voltage: Operating range from 4.0 V to 5.5 V.
  • Package: PDIP-40, ideal for THT mounting.

Typical Applications of the AT89C55WD-24PU Microcontroller

Thanks to its large number of I/O lines, advanced timers, and proven architecture, the AT89C55WD-24PU microcontroller is widely used for the following tasks:

  • advanced industrial control systems,
  • measurement and data acquisition devices,
  • electronic security systems,
  • motor controllers and home automation.

The microcontroller is available from Micros in a DIP-40 package. For technical questions regarding component integration and programming, please contact our customer service at bok@micros.com.pl.



Micros Part Number

89c55wd-24pu

Manufacturer Part Number

AT89C55WD-24PU

Flash

20 Kbytes

Pin Count

44

Max. Operating Freq.

24 MHz

CPU

8051-12C

Max I/O Pins

32

UART

1

SRAM (Kbytes)

0.25

Operating Voltage (Vcc)

4.0 to 6.0

Timers

3

Watchdog

Yes