8085 Microprocessor In-Built Power Supply


The 8085 Microprocessor requires a built-in power supply of +5V DC for its operation. It follows TTL (Transistor-Transistor Logic) compatibility, meaning that all its voltage levels are based on TTL standards.

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Power Supply Requirements for 8085

  • Operating Voltage: +5V DC
  • Current Requirement: Typically around 100mA (can vary depending on interfacing components)
  • Power Dissipation: Around 1W (depending on clock frequency and peripheral devices)

Power Supply Pins in 8085

  • VCC (Pin 40): This is the power supply pin where +5V is applied.
  • VSS (Pin 20): This is the ground (0V) connection.

Clock and Power Management

The 8085 microprocessor includes an internally generated clock signal that operates at a frequency typically up to 3 MHz. The power consumption depends on the clock speed, peripheral connections, and system load.

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