Logic Block

Description

Logic Blocks is an open hardware project to make a small logic gate breakout board, for easy prototyping logic gates into a breadboard.

Sometimes when you try to do a logic circuit on a breadboard you go crazy to identify the pinout of each logic gate, so I made these small boards with logic gates symbols on a top silkscreen of the board =)

Eagle files are available on github: Basic Block - 7400 Quad 2-input NAND & 7432 Quad 2-input OR

Components

1 × PCB board

4 × 74AHC1G00GW Logic ICs / Gates and Inverters

4 × 74AHC1G32GW Logic ICs / Gates and Inverters

2 × 100nF Capacitor (0805)

Discussions

Mark Jeronimus wrote 01/19/2017 at 12:35

Why not slap a piece of printed paper on your existing 74-series stock?

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Brian wrote 12/24/2015 at 05:55

These are awesome. I would have loved these for my first digital logic class many years ago.

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Yann Guidon / YGDES wrote 12/10/2015 at 05:28

I have found that "single gate" ICs are more expensive than SOIC14/16 parts. And your PCB needs 4 1G parts so this is not very cost-optimised.
But it's a nice idea :-)

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JRodrigo wrote 12/16/2015 at 17:16

Thanks! and yes the price of four "single gates" is about 3 times higher than a one chip =/

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Yann Guidon / YGDES wrote 12/16/2015 at 19:33

Well... it depends where you get them. Some brokers are quite competitive, I just found some cheap reels for #DYPLED

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Yann Guidon / YGDES wrote 12/17/2015 at 23:51

with some luck it's possible to find interesting deals : www.ebay.com/itm/231783916328

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alpha_ninja wrote 12/07/2015 at 01:25

Just a friendly reminder to please upload your gerbers by 23:59 UTC on Dec 8, 2015 to be in the running for #The Square Inch Project!

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JRodrigo wrote 12/08/2015 at 20:29

I updated the board, to fit two board into a Square Inch and make it a DIP package =)

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alpha_ninja wrote 12/08/2015 at 21:27

Nice :)

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alpha_ninja wrote 12/02/2015 at 00:44

This is your one-week reminder to upload design documents: https://hackaday.io/project/7813-the-square-inch-project/log/28566-design-deadline

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Eric Hertz wrote 11/20/2015 at 17:23

Very cool, but would it be difficult to make it fit in a typical DIP-spacing? Not sure how skinny they come, might require four of those 1-gang devices!

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JRodrigo wrote 11/20/2015 at 17:44

I added some more photos for reference, the dimensions now are like a PDIP package but using single gates in TSOP or SC packages maybe it fit in to a DIP style package. mmmm... Thanks for your comment!! =)

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JRodrigo wrote 12/08/2015 at 20:27

Now the board are a typical DIP-spacing =)

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Eric Hertz wrote 12/10/2015 at 00:54

Very slick! And I dig the slanted part-numbers :)

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Eric Hertz wrote 12/10/2015 at 00:57

Hey, an onboard capacitor too! That'd make prototyping/breadboarding easer-still!

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Winston wrote 11/20/2015 at 16:18

That's a clever idea. If you would make the same for NAND, OR, NOR gates, and the various flip-flops, you might have a marketable educational product.

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JRodrigo wrote 11/20/2015 at 17:00

Yes, i'm planning to make the basic gates (OR,NOT,NAND,NOR,XOR,XNOR) and some flip-flops, counter, BCD to decimal, BCD to 7 Seg., ... Thanks for your comment =)

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Logic Block

Description

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Logic Block

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