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74HC93-Based LED Counter with Pushbutton Control

Image of 74HC93-Based LED Counter with Pushbutton Control

Circuit Documentation

Summary

This circuit is a simple digital counter using a 74HC93 4-bit binary counter IC, a pushbutton for clock input, and four red LEDs to display the output. The circuit is powered by a power supply. The pushbutton is used to increment the counter, and the LEDs display the binary count.

Component List

  1. 74HC93: A 4-bit binary counter IC.
  2. Power Supply: Provides the necessary voltage and current to the circuit.
  3. Pushbutton: Used to provide clock pulses to the counter.
  4. LED: Two Pin (red): Used to display the binary output of the counter.

Wiring Details

74HC93

  • Clock 1: Connected to Output 0 of the 74HC93 and anode of one LED.
  • Reset 1: Connected to the positive terminal of the Power Supply.
  • Reset 2: Connected to the positive terminal of the Power Supply.
  • VCC: Connected to the positive terminal of the Power Supply.
  • Clock 0: Connected to Pin 4 (out) of the Pushbutton.
  • Output 0: Connected to Clock 1 of the 74HC93 and anode of one LED.
  • Output 1: Connected to anode of one LED.
  • Output 2: Connected to anode of one LED.
  • Output 3: Connected to anode of one LED.
  • GND: Connected to the negative terminal of the Power Supply and cathodes of all LEDs.

Power Supply

  • +: Connected to Pin 2 (in) of the Pushbutton, Reset 1, Reset 2, and VCC of the 74HC93.
  • -: Connected to GND of the 74HC93 and cathodes of all LEDs.

Pushbutton

  • Pin 1 (in): Not connected.
  • Pin 2 (in): Connected to the positive terminal of the Power Supply.
  • Pin 3 (out): Not connected.
  • Pin 4 (out): Connected to Clock 0 of the 74HC93.

LED: Two Pin (red)

  • Anode:
    • One LED anode connected to Output 0 of the 74HC93.
    • One LED anode connected to Output 1 of the 74HC93.
    • One LED anode connected to Output 2 of the 74HC93.
    • One LED anode connected to Output 3 of the 74HC93.
  • Cathode: All LED cathodes connected to the negative terminal of the Power Supply.

Code

There is no microcontroller code associated with this circuit.