[sdiy] Re: [efm] Mystery chips

[patchell]

Mitchell Hudson wrote:

>     I'm going through my electronics junk box and I realize that I have
> a bunch of chips that I don't recognize. Is there a site that shows the
> standard part number?
>
>     There are a bunch labeled 74HCT followed by various digits
>
> 74HCT688N

    8 bit comparator

>
> 74HCT163

    Syncronous 4 bit binary up counter

>
> 74HCT04N

    Hex inverter

>
> 74HCT00N

    Quad 2 input nand gate

>
> 74HCT04

    Hex inverter

>
> 74HCT393

    Dual 4 bit binary ripple counters

>
>
>     The NTE chip, which I think was sent as a replacement for something
> that I ordered that had a different number.
>
> NTE992
>
>     Then there are the even more mysterious ones
>
> MN74C04

    Hex inverter (metal gate CMOS

>
> 74SL93

    4 bit binary ripple counter (that should read 74LS93)

>
> 741S93
> CA3140

    BiMOS Opamp, mos front end, bipolar output

>
> 3094

    ....not sure about this one

>
>
> --M
>
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--
 -Jim
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