Oscillating Circuit Composed of SN7490

Published:2011/8/25 7:42:00 Author:Sue | Keyword: Oscillating Circuit | From:SeekIC

The picture shows the oscillating circuit which is composed of SN7490. In the circuit, the oscillating circuit uses TTL GATE circuit with a oscillate frequency of 1MHZ. When the six frequency dividing circuits SN7490 are connected in parallel, they can divide frequency and generate a frequency signal of 1HZ. The circuit's A,B,C,D,E,F terminals will output signals of frequency of 100kHZ, 10kHZ, 1kHZ, 100HZ, 10HZ and 1HZ.



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