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Clock Module

The idea behind this project is to have a standalone clock circuit to debug ICs at a very low clock speed.

It is mainly inspired by Ben Eater's version.

Features

  • Manual pulse Mode.
  • Variable frequency clock.
  • DC Input Jack 7v - 15v @ approx. 100mA.
  • Raw 5v power in for breadboard compatability.
  • Lots of LEDs :)

Parts

  • 2x 0.01uF - Ceramic Capacitor
  • 2x 4.7uF - Capacitor
  • 1x 470uF - Capacitor
  • 1x .33uF - Ceramic Capacitor
  • 4x .1uF - Ceramic Capacitor
  • 1x 1uF - Capacitor
  • 1x 1N4007 - Diode
  • 4x 5mm LED
  • 2x 01x02 Female Pin header
  • 1x DC Jack
  • 6x 1K - Resistor
  • 2x 51K - Resistor
  • 2x 10K - Resistor
  • 1x 100K - Potentiometer linear
  • 2x Button
  • 3x NE555P
  • 1x L7805
  • 1x 7400

What does it look like

KiCad Render

alt text

Todo

  • Use CMOS ICs for a 5vpp output
  • Add partslist
  • Add photos
  • Swap silkscreen position of c3 and c4
  • Different footprint for c8