Digital Clock Circuit Diagram Using 7490 Pdf

By | August 5, 2022



Digital clocks are a modern marvel that allow us to easily keep track of time. With the help of an integrated circuit, known as the 7490, digital clocks can be constructed with relative ease.

The 7490 is an integrated circuit package consisting of four standard decade counters, capable of counting from 0 to 9, and a BCD (binary coded decimal) decoder that converts the counter output into a BCD code that can be used to drive a standard seven-segment display. By arranging two seven-segment displays together, digital clocks can be made. The 7490 package also contains logic for resetting the counters and controlling the output of the BCD decoder.

In order to build a digital clock circuit, the components are connected to each other as per the digital clock circuit diagram using 7490 PDF. This involves connecting the clock’s resistors, capacitors, transistors, and other components to form the clock circuit. These components perform specific tasks in the construction of the clock such as providing power supply, converting the input signals to output signals, and providing synchronization to change the display values. Once all the connections are made, the integrated circuit is mounted on the board and connected to the power source. Finally, the clock is connected to the output display, and a complete digital clock circuit is created.


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