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8051 Microcontroller IC


The AT89C2051 is a 20 pin 8051 based microcontroller. It has a 2 KB Flash, a wide range of operating voltage of 2.7 – 6V, 15 I/O Lines, 2 16-bit Timer/Counters, 6 Interrupt Sources, a Programmable Serial UART Channel, Direct LED Drive Outputs, On-chip Analog Comparator, et

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The 8051 Microcontroller IC, a fundamental component in embedded systems, is a versatile and widely used microcontroller that provides computing capabilities in various applications. Developed by Intel in the 1980s, it has since become a staple in the world of microcontrollers due to its reliability and ease of use.


  • RISC Architecture: The 8051 employs a streamlined Reduced Instruction Set Computer (RISC) architecture for efficient and also clock-cycle-saving execution of complex tasks.
  • 8-Bit Processor: Featuring an 8-bit microprocessor and it processes data in 8-bit chunks, suited for diverse applications.
  • ROM and RAM: Typically includes built-in Read-Only Memory (ROM) and Random-Access Memory (RAM) for program and data storage.
  • I/O Ports: Equipped with multiple Input/Output (I/O) ports, facilitating external device and sensor interfacing.
  • Timers and Counters: Features timers and counters for precise time measurement and event counting, essential in various applications.
  • Serial Communication: Often integrates serial communication ports (UART) additionally simplifying device and peripheral connectivity.


  • Embedded Systems: Vital for controlling functions in appliances, automotive systems, and consumer electronics, serving as the foundation of many embedded systems.
  • Industrial Automation:Because it used in industrial machinery and data processing for efficient manufacturing.
  • Security Systems: Employed in security systems for access control, alarm monitoring, and surveillance camera management.
  • Robotics: Integrated into robots and robotic systems, dictating their movements and interactions.

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Weight 0.2 kg


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