I used a 74AHC74 running at 6V up to 200MHz. The first one ran hot and died after some days, I replaced it and glued a small heatsink on top of it. This one is still alive (for 2 years now, fingers c
I sucessfully use 74HC and 74HCT familty to at least 30 - 40MHz. It can often be pushed to just above 50MHz. If you want to got faster, the 74ACT family can be used as buffers to beyond 100MHz, but c
The Philips HEF series CMOS chips work to more than 20MHz, other types are not so good. Dave G3YXM I would like to use the M74HC4060 as a 'divide-by-64' signal source. Can anyone tell me the upper li
I would like to use the M74HC4060 as a 'divide-by-64' signal source. Can anyone tell me the upper limit for xtals that this chip can handle? My xtal will be on 8.750000; I fear that the upper limit