help finding a ic (intigrated circuit)chip

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help finding a ic (intigrated circuit)chip

Post by dcmodder »

i'm looking for the chip used here i know that it's the 74HCT244 ic which has 20 pins... BUT i know that radio shack does not have one. is this a rare ic or somthing? p.s. please dont give me online buying sites as i have no method to getting my cash online.
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Post by doragasu »

It's a tri-state line driver/transceiver. You can find it here.
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Post by dcmodder »

so you have the Continuum Transfunctioner? :) i need this in the usa please
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Post by Ex-Cyber »

It looks like only one of the buffer enables is actually used, so I don't see why you couldn't sub a 74HCT245 (RadioShack catalog #276-2863; this is apparently a discontinued item but they don't exactly sell like hotcakes so there's a good chance a local RS location still has one; also these things in some family/process variation are ALL OVER THE PLACE in old computer/console hardware, as it was basically THE 8-bit bus transceiver). This involves a pinout change, and you'd need to tie the direction line as well.
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Post by Synlor »

I have some extra ones... like... a bunch of extra ones..... free samples rock :). If you could send me one of those thin gray envelopes that are meant for sending little small objects in the mail, I could send a few to you. PM me if interested.
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Post by ptr.exe »

Just make the circuit without one, it works just as well.

On dcemu.co.uk forums there's a tutorial written by me, its got pics and stuff and shows easier places to solder to.
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