AT89S52 40-Pin Microcontroller

The AT89S52 is a popular 8-bit microcontroller from Atmel (now part of Microchip Technology) that is widely used in various embedded systems and microcontroller-based projects. It offers a balance of performance, features, and affordability, making it a versatile choice for a wide range of applications.

Key Features:

• Interrupt system: Allows for efficient handling of external events.
• Timer/counters: Provides precise timing and counting capabilities.
• 8-bit microcontroller: Provides a powerful and efficient processing platform.
• On-chip flash memory: Allows for easy firmware updates and upgrades.
• On-chip RAM: Provides memory for data storage and program execution.
• Multiple I/O ports: Offers flexible connectivity for interfacing with external devices.
• 40-pin DIP package: A standard package type for easy integration into circuit boards.
• Serial communication interfaces: Includes UART, SPI, and I²C for communication with other devices.
• Harvard architecture: Separates program memory and data memory for improved performance.

Applications:

• Robotics
• IoT devices
• Medical devices
• Home automation
• Embedded systems
• Educational projects
• Industrial automation
• Consumer electronics

Specifications:

• I/O ports: 32
• RAM: 128 bytes
• Timers/counters: 2
• Flash memory: 8KB
• Clock speed: Up to 12 MHz
• Microcontroller architecture: 8-bit MCS-51 compatible

DATA SHEET AND USECASE

Key Features:

• Memory:

  • 8K bytes of Flash memory with an endurance of 10,000 write/erase cycles.
  • 256 bytes of internal RAM.

• I/O Ports:

  • 32 programmable I/O lines.

• Timers/Counters:

  • Three 16-bit timers/counters.

• Serial Communication:

  • Full-duplex UART for serial communication.

• Interrupts:

  • Eight interrupt sources with two priority levels.

• Oscillator:

  • Supports a wide range of clock frequencies, up to 33 MHz.

• Power Features:

  • Idle and power-down modes for reduced power consumption.