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D latch

2016-02-24

[public] 450K views, 14.9K likes, 59.0 dislikes audio only

Building on the SR latch from the previous video (https://youtu.be/KM0DdEaY5sY), the D latch makes it easier to store a single bit of data.

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You can get all the components used in this video from any online electronic components distributor for a few dollars.

Complete parts list (everything in this video):

4x 74LS02 (Quad two-input NOR gate)

2x 74LS08 (Quad two-input AND gate)

8x 330Ω resistor

1x 1kΩ resistor

8x Momentary "Microtivity 6mm tact switch"

9x LEDs

Solderless breadboard(s)

22 gauge wire

USB charger and cable or some other 5v power source


A Latch That Has a Single Input
/youtube/video/peCh_859q7Q?t=22.57
A nor Gate as an Inverter
/youtube/video/peCh_859q7Q?t=90.519997
Adding an Enable to the Sr Latch
/youtube/video/peCh_859q7Q?t=171.819