ATMEL 89C51

The Atmel 89C51 is a popular 8-bit microcontroller from the MCS-51 family, widely used in embedded systems and applications requiring control and automation. It features a robust set of peripherals and is compatible with the standard 8051 instruction set, making it suitable for various industrial, consumer, and automotive applications.

Key Features:

• 8-bit microcontroller based on the MCS-51 architecture
• 4KB of in-system programmable Flash memory
• 128 bytes of on-chip RAM
• 32 programmable I/O lines
• Two 16-bit timer/counters
• Full-duplex UART for serial communication
• On-chip oscillator and clock circuitry
• Interrupt support with two priority levels
• Watchdog timer for system reliability
• Low-power idle and power-down modes

Technical Specifications:

• CPU: 8-bit 8051 core
• Flash Memory: 4KB
• RAM: 128 bytes
• EEPROM: None (external EEPROM can be used if needed)
• I/O Pins: 32 (four 8-bit ports)
• Timers/Counters: Two 16-bit
• Serial Communication: UART
• Operating Voltage: 4.0V to 5.5V
• Clock Frequency: Up to 24 MHz
• Power Consumption: Low power modes available
• Operating Temperature Range: -40°C to +85°C
• Package Type: DIP-40, PLCC-44, or QFP-44

Applications:

• Industrial control systems
• Consumer electronics
• Automotive systems
• Home automation
• Robotics
• Data acquisition systems

Usage:

1. Program the 89C51 using an appropriate programmer with the desired firmware.
2. Connect the necessary peripherals and sensors to the microcontroller’s I/O pins.
3. Configure the microcontroller’s settings and features via software.
4. Integrate the microcontroller into your electronic circuit for specific tasks and control functions.

Caution:

• Ensure proper handling and storage to avoid damage from electrostatic discharge (ESD).
• Verify correct power supply voltage and connections before powering the device.
• Follow the manufacturer’s guidelines for programming and operation.

Datasheet:
For detailed technical specifications, refer to the Atmel 89C51 Datasheet.