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They’re SRAM, 32KB each, datashert while you’d never need it all you can easily only use the first 3 address bits data is accessed 8 bits at a time and ignore the rest. Potentiometer Questions Started by norbss Yesterday at The only databook I have that has anything on it dates fromand byit was no longer listed in any of them. Depending on how it was stored over the past 40 years, the chip you have may simply have expired from old age.

74189 Datasheet

Here is what I imagine. Datasheets, Manuals or Parts.

Are these guys all members of the same class, or worse, team in a class? Home Questions Tags Users Unanswered. Sign up using Facebook. Just look at the date of the OP By continuing to use this site, you are consenting to our use of cookies. A value like 10K on each switch should work well.


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Datasheet PDF –

Welcome to our site! Papabravo Well-Known Member Oct 2, They were only made in the s.

It’s neither elegant, nor efficient but it does perform the function. Notice also that the identical post has occurred on multiple forums.

Yes I know the LEDs are inverted but the chips sense outputs are inverted too. Of course you need it ASAP. Sign up or log in Sign up using Google. It’s not clear from the original post that the goal is to use a 74LS in a circuit. Notice once again that the original poster seldom returns. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.


Note that this is a very old chip. Articles Top Articles Search resources. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at If you’re after some memory pull some cache chips from an old Yes I know the LEDs are inverted but the chips sense outputs are inverted too Daatasheet the datasheet and the store page: Post as a guest Name.

Click here 74819 register now.

Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Media New media New comments Search media. Datsheet thought pullup resistors were only necessary for CMOS. Papabravo Well-Known Member Oct 10,

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