AT89S51 Microcontroller IC
90.00 EGP
The AT89S51 is a high-performance 8-bit microcontroller from the 8051 family, featuring enhanced Flash memory technology and faster programming capabilities. It is designed for versatile embedded system applications that require reliable and efficient control.
Description
✅ Key Features
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Core: 8-bit 8051 compatible CPU
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Program Memory: 4 KB on-chip In-System Programmable (ISP) Flash memory
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Data Memory: 128 bytes internal RAM
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I/O Ports: Four 8-bit bidirectional I/O ports (32 pins total)
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Timers: Two 16-bit timers/counters for precise timing operations
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Serial Communication: Full-duplex UART for asynchronous communication
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Interrupts: Multiple interrupt sources with priority levels for efficient handling
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Operating Voltage: 4.0V to 5.5V
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Clock Frequency: Up to 24 MHz for fast processing
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In-System Programming (ISP): Supports programming without removing from the system
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Packaging: Available in DIP40 and PLCC44 packages
⚙️ Technical Specifications
| Parameter | Details |
|---|---|
| Architecture | 8-bit 8051 |
| Flash Memory | 4 KB ISP Flash |
| RAM | 128 bytes |
| I/O Ports | 4 x 8-bit |
| Timers | 2 x 16-bit |
| UART | Yes |
| Operating Voltage | 4.0 – 5.5 V |
| Max Clock Frequency | 24 MHz |
| Packaging | DIP40, PLCC44 |
📌 Applications
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Embedded control systems requiring in-system programming
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Consumer electronics
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Industrial automation
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Robotics
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Communication devices
