HEX to 7-Segment converter - Counter as 4bit input

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03:51:00

===== CONTROLS =====
To control the counter use two buttons above it (left for decrementing, right for incrementing)

===== INFO =====
Just wanted to show an optimal solution of HEX -> 7-SEG converter.
It uses all 24 gates of 6 ICs.
• 2x 7486 (quad XOR)
• 1x 7408 (quad AND)
• 2x 7402 (quad NOR)
• 1x 7432 (quad OR)

There are solutions using only 23 gates but more ICs.

Note: The circuit outputs LOW when the LED should be on since my 7 segment display has a common VCC. That's why there are NOT gates on the right border of the circuit

published 6 years ago

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