Designing and building a 1-bit register - 8 bit register - Part 3

2016-05-02

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Before we build the 8-bit registers for our computer, let's design and build a 1-bit register.

The 8-bit registers we'll actually use in our 8-bit computer will be simplified. We're going to take a big shortcut—using the 74LS173—described at the end of this video. But before we get to that, this video shows how we could build a 1-bit register using more basic components.

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You can get all the components used in this video from any online electronic components distributor for a few dollars. See https://eater.net/bbcpu8-registers for more.

Complete parts list (everything in this video):

- Clock circuit from /youtube/video/SmQ5K7UQPMM

- 1x 74LS04 (Hex inverter)

- 1x 74LS08 (Quad AND gate)

- 1x 74LS32 (Quad OR gate)

- 1x 74LS74 (Dual D flip-flop)

- 1x LED

- 22 gauge wire

- 5 volt power source (e.g., a USB phone charger)