8051 Microcontroller

8051 Microcontroller

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8051 is an 8-bit family of microcontrollers developed by Intel. This microcontroller was also referred as a system on a chip because it has 128 bytes of RAM, 4K bytes of ROM, 2 Timers, 1 Serial port, and four ports on a single chip. The CPU can work for only 8 bits of data at a time because 8051 is an 8-bit processor. In case the data is larger than 8 bits then it has to be broken into parts so that the CPU can process conveniently.

₨ 260

Features 
There are some key features of 8051 that work as a foundation for students to learn microcontrollers. These features include:

  • 4 KB on-chip ROM (Program memory).
  • 128 bytes on-chip RAM (Data memory).
  • The 8-bit data bus (bidirectional).
  • 16-bit address bus (unidirectional).
  • Two 16-bit timers.
  • Instruction cycle of 1 microsecond with 12 MHz crystal.
  • Four 8-bit ports.
  • 128 user-defined flags.
  • Four register banks of 8 bit each.
  • 16-byte bit-addressable RAM.
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