AT89C52 Microcontroller

AT89C52 Microcontroller 

The AT89C52 is an 8-bit microcontroller from the 8051 family, developed by Atmel (now Microchip Technology). It is widely used in embedded control and automation applications that require moderate program memory, multiple timers, and serial communication 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 UART serial communication. The microcontroller is available in a 40-pin DIP or SMD package, making it suitable 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 / SMD

Applications

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