I can't get my 74HC595 shift register setup working

BobaMosfet

Joined Jul 1, 2009
2,211
This shift register is an Excellent SR to use. Note these inputs/controls:

1684328327077.png

This SR is a 2-stage register. You shift data in, and then tell it to display it. This is bey design so that the output doesn't flicker while values are shifting through the input. This SR is a favorite for clocks. I built displays around this SR- the below just tests the IV-22, LED, and segments, showing it works, and pin 9 (QH') is shifting data to other displays.

1684328559188.png
 
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