AT89C55 Microcontroller 40 Pin

AT89C55 Microcontroller 40 Pin 

The AT89C55 is an 8-bit microcontroller from the 8051 family, developed by Atmel (now Microchip Technology). It is designed for general-purpose embedded applications that require reliable performance and multiple I/O capabilities.

It is based on the 8051 architecture with an 8-bit CPU and integrates Flash program memory, SRAM, digital I/O ports, timers, and serial communication interfaces. The microcontroller comes in a 40-pin DIP package, making it ideal for industrial, educational, and consumer electronics projects.

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Features

• 8-bit 8051-compatible CPU
• Operating voltage: 4.0 V – 5.5 V
• Maximum clock frequency: 24 MHz
• Program memory: 8 KB Flash (in-system programmable)
• Data memory: 256 bytes RAM
• I/O pins: 32 programmable digital I/O pins
• Timers/Counters: Three 16-bit timers
• Communication interfaces:
• Full-duplex UART (serial)
• Interrupt system: 8 interrupt sources
• Low-power modes: Idle and Power-down
• Package type: 40-pin DIP

Applications

• Embedded control systems
• Industrial automation
• Sensor interfacing
• Robotics and motor control
• Serial communication projects
• Consumer electronics
• Educational and training projects