This counts off 59 seconds until, with the help of an AND gate, the seconds counter rolls over to zero. After repeating that again for the minutes and building a similar circuit for the hour ...

[Paul] likes a precise oscillator. His recent video shows a crystal oscillator with a “watch crystal” and a CMOS counter, the CD4060. Using such a circuit can produce very stable frequencies ...

Design of CMOS digital integrated circuits, concentrating on device, circuit, and architectural issues. Analysis and design techniques in custom integrated circuit design, standard cells, memory. Use ...