Re: What's the difference?

"Theo" <theodore.twyler@xxxxxxxxxxxx> wrote in message
news:77FYe.1114$3q4.877@xxxxxxxxxxxxxxxxxxxxxxx
> Pardon my ignorance, but I know little about the
> different "families" of digital TTL chips.
> Can anyone please explain what the chief operating differences are (if
> any)
> between a 74LS164 and a 74HC164?
> Any assistance will be greatly appreciated.
> Please reply soon.

Pick a manufacturer that makes both, pull up the datasheets, and compare
typical, min, and max values for:

- supply voltage
- quiescent supply current
- switching time
- propagation time
- input lo/hi threshold
- output fanout
- output lo and hi voltages
- output current capability
- input current


.