CMOS Logic probe circuit

Published:2011/3/22 1:54:00 Author:muriel | Keyword: CMOS, Logic probe circuit | From:SeekIC

This circuit is a tool for the diagnosis of failure to display important state after link to microprocessors. When the TTL input is 1 , LED light; when the input is 0 , LED does not light. When the input from the 1 to 0 or 0 to 1 , the edge of the LED-2 light once. Input end use CMOS inverter buffer 3a, that can prevent the probe influence microprocessor.



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