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AT89S51-24AU Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
AT89S51-24AUAtmel9893Yes

AT89S51-24AU** is a microcontroller from **Atmel** (now part of Microchip Technology).

The AT89S51-24AU is a microcontroller from Atmel (now part of Microchip Technology). Below are its specifications, descriptions, and features:

Specifications:

  • Manufacturer: Atmel
  • Core: 8051 (8-bit)
  • Operating Voltage: 4V to 5.5V
  • Clock Speed: 0 Hz to 24 MHz
  • Flash Memory: 4 KB (In-System Programmable)
  • RAM: 128 Bytes
  • EEPROM: None
  • I/O Pins: 32 (Four 8-bit Ports)
  • Timers: 3 (Two 16-bit Timers, One 16-bit Timer/Counter)
  • UART: 1 (Full-Duplex)
  • Interrupts: 6 (2 External, 3 Timer, 1 Serial)
  • Watchdog Timer: Yes
  • Power Saving Modes: Idle and Power-Down
  • Operating Temperature: -40°C to +85°C
  • Package: TQFP-44

Descriptions:

  • The AT89S51-24AU is a low-power, high-performance CMOS 8-bit microcontroller with 4KB of ISP Flash memory.
  • It is compatible with the MCS-51 instruction set, making it suitable for embedded applications.
  • Supports in-system programming (ISP) via SPI interface, allowing easy firmware updates.

Features:

  • 4KB ISP Flash Memory (Endurance: 1000 Write/Erase Cycles)
  • 128 Bytes On-Chip RAM
  • Fully Static Operation (0 Hz to 24 MHz)
  • Three-Level Program Memory Lock
  • SPI Interface for In-System Programming
  • Dual Data Pointer for Faster Data Access
  • Power-On Reset (POR) and Brown-Out Detection
  • Programmable Watchdog Timer
  • Flexible Interrupt Structure
  • Industrial Temperature Range Support (-40°C to +85°C)

This microcontroller is commonly used in industrial control systems, automotive applications, and consumer electronics due to its reliability and ease of programming.

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