74AC14N - Difference if made in 1995 or 2017?

[K1JOS]

Looking at current descriptions of this Schmitt trigger input hex inverter - it makes a big deal about jitter free outputs while the datasheet for the same part, same manufacturer, bought back in the early 1990's makes no mention of jitter.  Are same part number, same manufacturer made 25 years ago identical in performance to modern manufactured components?

jerry

[Messtechniker]

Probably not because of changed innards.
If you have the two samples, visit your dentist
for Xraying. You will then see.
I have heard that some logic IC series are to day based on FPGAs
programmed for the respective function. Can anyone confirm this? 

[Jeroen3]

They will have switched fab and process several times, so the thresholds will differ.

[Zero999]

Looking at current descriptions of this Schmitt trigger input hex inverter - it makes a big deal about jitter free outputs while the datasheet for the same part, same manufacturer, bought back in the early 1990's makes no mention of jitter.  Are same part number, same manufacturer made 25 years ago identical in performance to modern manufactured components?

The die might be smaller, but other than that, it will be the same.

Probably not because of changed innards.
If you have the two samples, visit your dentist
for Xraying. You will then see.
I have heard that some logic IC series are to day based on FPGAs
programmed for the respective function. Can anyone confirm this? 

I very much doubt that. There's more chance of it being a mask programmable logic array, but I doubt they'd use a more expensive process, when a cheaper one will do. Anyway, how many FPGAs are rated for 2V to 6V operation like the 74AC14 is?