It is at the heart of digital clock circuitry and other similar timing devices. The counter comprises two NAND gates of CD4011, up/down counter CD4510, 7-segment decoder CD4511 and some discrete ...

In this circuit, gates N1 and N2 form an oscillator. The output of this oscillator is used as a clock for BCD up/down counter CD4510 (IC2). Automatic Dual Output Display Circuit Depending on the logic ...