PART FINDER FRIDAY – 74HC595

Fetch

In honor of the 7400 logic contest, this part finder (friday) is for one of our favvvorite logic chips – the 74HC595.

We first encountered this chip when working on the spokePOV kit. We wanted to control 60 LEDs from an Attiny2313. I only had maybe 5 pins to spare so even something like ‘charlie-plexing’ wouldn’t work. A great solution came to us with the suggestion of checking out the 74HC595. This is a chip that takes serial input (3 digital pins) and has 8 digital outputs. You can chain these puppies together to have near-infinite number of outputs. Perfect for controlling LED displays!

For an excellent tutorial on usage, check out the Arduino ShiftOut page

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1 Comment

  1. Mike
    October 2, 2011 at 5:54 am

    What to make with 2,400 74HC595’s…
    http://www.youtube.com/watch?v=RPx4IhPROXU

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