[sdiy] 74HCT174 in place of 40174?

[Ken Stone]

Apparently the 4174 was later renumbered as the 40174. The 14174 is
Motorola's version of the standard CMOS 4174. Most or all of Motorola's
second source parts of the era were MC1xxxxxx. e.g. 1555 = 555 timer, 1741 =
741 op-amp etc.

>Can anyone tell me if it's possible to use a 74HCT174 in place of a 
>40174 on a Memorymoog's DMUX board?

Maybe. The later part will be faster. I don't know how it will react to
sluggish 4000 series signals.

>The pinout's the same, they're both CMOS parts, and I've found some 
>listings that imply that they're interchangeable.

Only if conditions are correct, including the power supply being +5V.

Ken

>Also, where does the 14174 come in?  I see that used in the same 
>application in the SCI stuff.
>
>And there's also a 4174, from what I can tell.
>
>Thanks!
>
>Tim
>
>
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_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
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