CMOS MAX Vss?
Eric at Svetlana Electron Devices
svetengr at earthlink.net
Mon Mar 2 19:03:19 CET 1998
>> Still lacking a replacement source for some 74C components that needs
>> to run of +12 V... the 74HC familly isn't much of a help. Anyone
>> remember the 74C familly?
Having been messing with CMOS logic since 1973, I hav made that
same mistake many times.
Here are a few easy things to remember:
1. Assume all 74C, 74HC, 74HCT etc. are meant for 5v only.
2. Assume all 4000A and 4000B are usable from 3v to 15v.
3. There are a few 74HC4000 types--assume they are 5v only.
Svetlana Electron Devices
Portola Valley CA USA
More information about the Synth-diy