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AT89C55WD-24AU Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
AT89C55WD-24AUAtmel70673Yes

AT89C55WD-24AU** is a microcontroller manufactured by **Atmel** (now part of Microchip Technology).

The AT89C55WD-24AU is a microcontroller manufactured by Atmel (now part of Microchip Technology). Below are its specifications, descriptions, and features:

Specifications:

  • Manufacturer: Atmel
  • Core: 8051
  • Flash Memory: 20KB
  • RAM: 256 bytes
  • Operating Voltage: 4.0V to 5.5V
  • Clock Speed: Up to 24 MHz
  • Package: TQFP-44
  • Operating Temperature: -40°C to +85°C
  • I/O Pins: 32
  • Timers: Three 16-bit timers/counters
  • UART: One full-duplex serial port
  • Watchdog Timer: Yes
  • Power-On Reset (POR): Yes
  • Interrupt Sources: 6

Descriptions:

The AT89C55WD-24AU is a low-power, high-performance CMOS 8-bit microcontroller with 20KB of Flash memory. It is based on the 8051 architecture and is compatible with the MCS-51 instruction set. It features a built-in watchdog timer and power-on reset, making it suitable for industrial and embedded applications.

Features:

  • 20KB Flash Memory (In-System Programmable)
  • 256 Bytes Internal RAM
  • Fully Static Operation (0 Hz to 24 MHz)
  • Three-Level Program Memory Lock
  • 32 Programmable I/O Lines
  • Three 16-Bit Timer/Counters
  • Full-Duplex UART Serial Channel
  • Watchdog Timer
  • Power-On Reset Circuit
  • Low-Power Idle & Power-Down Modes
  • Interrupt Recovery from Power-Down Mode
  • Dual Data Pointer
  • Flexible ISP (In-System Programming)

This microcontroller is commonly used in industrial control systems, automotive applications, and embedded devices requiring reliable performance.

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