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Electronics
Digital Clock Built with Logic ICs
A fully discrete digital clock built from binary counters, gate logic, and a BCD-to-7-segment decoder, dividing a clock source down to a 1 Hz timekeeping signal with correct 60-second and 60-minute rollover.
Problem
Building a clock from discrete digital-logic ICs rather than a microcontroller, to apply core digital electronics theory — frequency division, counting, and BCD decoding — directly in hardware.
Key Features
- 1 Hz clock generation via frequency division
- Binary counting with 60-second and 60-minute rollover
- BCD-to-7-segment decoding and display driving
- Reset logic
Technologies & Concepts
7493 Binary Counters7408 AND Gates7432 OR GatesCD4511 BCD-to-7-Segment Decoder/Driver7-Segment Displays
Learning Outcomes
- Digital logic design
- Hardware system integration
- Counter circuits and BCD decoding
- Timing and clock signal management
- Practical electronics troubleshooting and signal integrity