CD4093

[pata]

Could I accomplish the same thing as the CD4093 IC if I used 4 single NAND
gates? In other words, if this chip is just 4 NAND gates, why does it need
to be connected to power and ground?

 

[Michael Black]

"pata" (lkj@lkj.com) writes:

Could I accomplish the same thing as the CD4093 IC if I used 4 single NAND
gates? In other words, if this chip is just 4 NAND gates, why does it need
to be connected to power and ground?

A 4093 has schmitt trigger inputs, which makes it different from an average
nand gate. If it's specified, or there is a need for a schmitt trigger
input, then the results will suffer or not work at all if you use something
without schmitt trigger inputs.

You also will have a hard time finding single nand gates. Oh, I gather
there may be some, but generally you'll need more than one so it makes
little sense to only put one in a package, the cost of adding the other
three will likely be less than the cost of the packaging.

I don't know where you're going with the power bit. Any gate will need
power.

Michael

 

[R. Steve Walz]

pata wrote:

Could I accomplish the same thing as the CD4093 IC if I used 4 single NAND
gates? In other words, if this chip is just 4 NAND gates, why does it need
to be connected to power and ground?
--------------

All chips need to be powered, they can't 'just be gates' it's not
possible, all gates are powered switches.

-Steve
--
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