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| display | go back |
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| 1 | the input pulse is accepted at pin #14 of the "binary-coded decimal" (BCD). |
| 2 | pins 2 and 3, as well as pins 6 and 7 are connected to ground for the 7490 to start counting. |
| 3 | the most significant bit of BCD counter is sent to the "B" input of the 7492. |
| 4 | pins 6 and 7 of the 7492 are also connected to ground for the divide-by-six counter. |
| 5 | display is provided through the 7447, a seven-segment decoder. |
| 6 | the output of the 7447 provides its output to a "common-anode" seven-segment display. |