Input state indication circuit

Published:2011/4/22 1:30:00 Author:Nicole | Keyword: Input state indication | From:SeekIC

This circuit keeps an eye on a bit data input, and it will display H or L on the 7-phase LED according to its state. The circuit uses two 7437 inverters and a DL-704 common catthode LED. The diode symbol represents a phase LED(A phase is not needed when it display H or L). The power supply connection way of 7437 inverter: (14) connects to +5V, ⑦ connects to ground.



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