Anyone have any DIP 74LS160s?

Question

I built a little project that uses several of them, and since it seems none of the major vendors carry them anymore I turned to Ebay where I have had good luck in the past. Unfortunately this time I was burned, the chips I ordered (from China, natch) all appear to be defective in their own special way; for example, one loops between "2" and "3" forever, another has outputs that oscillate at 20 mHz on every negative going transition...

Does anyone have 4 of these that are known good they could part with? I'll certainly endeavor to use parts with better availability in the future.

John Larkin · Accepted Answer

Can't you use an HC160 or an HCT160?John

Bitrex · Answer

I can't use an HC160, because there's LS logic driving the '160. I suppose I could use an HCT160, but I checked both Digi-Key and Mouser and they're either non-stock or available only in surface mount packages. :(

Bitrex · Answer

Nevermind, there seem to be some at Mouser - I guess a SOT38 is actually a DIP?

Tim Wescott · Answer

If you have room and your speeds aren't too high you can use pullups on the LS parts' output.-- Tim WescottWescott Design ServicesDo you need to implement control loops in software?"Applied Control Theory for Embedded Systems" was written for you.See details at

Bitrex · Answer

Thanks for reminding me of that possibility, in a pinch if I could only get HC logic that wouldn't be too hard to implement as the speeds are not very high at all. Fortunately it seems Mouser does indeed have HCT 160s by NXP in a DIP package available.

Dave M · Answer

Unicorn Electronics lists them in their online catalog @ $1.29 each, with a price break at qty of 25, if you need that many. Free shipping on prepaid orders. The only issue that you might gripe about is their $25 minimum.

They are good folks; I've bought from them many times, with nary a problem.

Tim Shoppa · Answer

d,euture.I'm not sure what speeds or fanouts you are running at but fornoncritical applications LS will drive HC without a pullup, and with apullup you can actually be sure you are meeting specs.If you can just pop out the LS and put HC or HCT parts in those spotsthat would be way preferable. Those little snippers are your friend.Tim.

John Fields · Answer

---Mouser's got HCT:---JF

Joe Chisolm · Answer

Jameco has them, 74ls160 dip package-- Joe ChisolmMarble Falls, Tx.

David Eather · Answer

Have you tried these?

Anyone have any DIP 74LS160s?

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