Did you copy that list from a chart? If so, read the label on the chart.So the identification is this chart is called what?
If you just typed out a list, it is called a list that SamEricson typed.
Did you copy that list from a chart? If so, read the label on the chart.So the identification is this chart is called what?
It's a list that you got from several different datasheets.No the chart didn't have a name, I just go the names from different datasheets but never knew the name of what it is
1)There are different families of chips so chips in each family can be the best chip for different circuit requirements.yes true families, but why is there different families and why can't you interchange them even tho they are the same part number?
S= Schottky = 3nSec timing
ALS= Advanced LS = 4nSec timing
LS= Low power schottky = 10nSec timing
Yes but i have seen techs for years just slapping in and interchanging different families because of the part number. I guess they thought they were the same even tho the family is different.They are not the same part number. They have different letters in their part numbers.
and we've come full circle again.Either those techs really know what they're doing; or they don't know what they're doing. I'd tend to believe the latter.
Speed, fan in/out, threshold levels, ...; generally not interchangeable.
I wouldn't call it an upgrade. It's a substitution that could cause the circuit to malfunction. I wonder how these techs you're referring to would spin that...I know repair techs interchange families because they tell there clients they are "Upgrading" there circuit boards
They would charge the customer again, to install the correct parts (same as those which they took out). How to spin it? Just say it's a different problem that happened after the first bill was paid.I wouldn't call it an upgrade. It's a substitution that could cause the circuit to malfunction. I wonder how these techs you're referring to would spin that...
fix yor grammar too and try not to ask questions with no good answer.What is some good IC chips that have a large library for every TTL, CMOS, Op amps . etc. to test IC chips in circuit
Many many years ago, a hobby magazine suggested replaceable patch boards hooked up to test clips like:-There is no such thing as an IC chip that has a library of other chips inside it.
You will just have to do as you said in your second sentence.
Unless testers are checking all of the device parameters, they shouldn't care. The logic function of all families is the same; they differ in power, speed, threshold, input/output load, etc.I know the IC testers get confused when testing the same IC part number but this identification list gets confusing for IC testers. I'm guessing it's called identification for say the 74H, 74L, 74s etc.