> Better use 74HC or 74HCT parts, the 74F should be TTL FAST parts that > require high input current to be driven correctly.
HC/HCT are pretty slow. I'd carefully check the data sheet timings before substituting for AC. Yes, F/FAST requires some input current, but I wouldn't call it "high". It's higher than CMOS but might work in some cases. Again, check the data sheets. (Or try it for a low volume project.) -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
