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2
questions
3
votes
1
answer
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Using a function generator as a clock source to drive several ICs (CD4000 CMOS series & 74 TTL)
I am building a circuit that uses a 4 MHz reference carrier. The used ICs are basically XOR 7486 and NOT 7404, CD4013 flip-flop, etc.
I have a function generator which is capable of providing up to 5 ...
5
votes
5
answers
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Why do TTL pulse generators generate an asymmetrical square wave (unlike CMOS)?
I've read that the asymmetrical (about 1/3 mark-to-space) output waveform is due to input gate characteristics of a TTL inverter, but I want to know more about which characteristics of the TTL input ...
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