FAST_TTL_PROBE

Published:2009/7/2 22:56:00 Author:May | From:SeekIC

RS flip-flop wired from NAND gate detects pulses as short as combined gate delays of NAND sections forming flip-flop (about 30 ns). Circuit changes state at start of pulse, with LED monitoring flip-flop output.After pulse has been detected, circuit must be reset with S2. Will work with either positive-or negative-going pulse, as selected by S1.-W. A.Walde, Build a TTL Pulse Catcher, BYTE, Feb.1976, p 58 and 60.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/FAST_TTL_PROBE.html

Print this Page | Comments | Reading(3)