HexInverter substitution -also midiDAC related.

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Pav
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HexInverter substitution -also midiDAC related.

Post by Pav » Tue Dec 10, 2019 2:43 pm

Hi

I need a 74HC04 for my second midiDAC and its backordered until February by farnell, and i wish to avoid a 12 quid postage from mouser.

I had planned temporarily to use an smd version of 74HC04 with a SOIC to DIP14 adapter but pin spacing is for breadboard not IC socket as i had expected when i got them from Bitsbox. The 8 pin adapters they sell fit fine but 14,16, do not.

I happen to have some old new 74AC04PC stock never opened - probably from my first electronic fumblings in late 1980s. Maybe compatible though the latter has a tighter source voltage range around 5v , im not sure of current reqs.

https://www.onsemi.com/pub/Collateral/74ACT04-D.pdf

what do you think?
rgds Pav

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Synthbuilder
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Re: HexInverter substitution -also midiDAC related.

Post by Synthbuilder » Wed Dec 11, 2019 4:00 am

Pav wrote:I happen to have some old new 74AC04PC stock never opened - probably from my first electronic fumblings in late 1980s.
That should work just fine. AC are faster but I don't think this should be a problem on the later midiDAC boards.

Tony

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Pav
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Post by Pav » Wed Dec 11, 2019 5:25 am

Thanks again for all the advice in 2019.
:tu:
rgds Pav

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Pav
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Post by Pav » Wed Dec 11, 2019 5:43 pm

Just to say build was successful as was calibration.
rgds Pav

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Post by Synthbuilder » Thu Dec 12, 2019 10:13 am

Excellent news. :bananaguitar:

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