Practical case: 1-bit equality detector
Level: Basic – Verify the operation of a 74HC7266 XNOR gate as a logical equality detector using its truth table.
Basic, Digital Electronics, XNOR gate, XNOR gate_Basic
Digital Electronics
Practical case: Sensor fault detector
Level: Basic – Implement an XOR gate circuit to activate a visual alarm when two redundant sensors present different logic states.
Practical case: Security alarm with NOR
Level: Basic | Objective: Verify the NOR gate truth table using an alarm circuit that activates only when no sensors detect movement.
Practical case: Selectable Frequency Divider
Level: Medium – Build a binary frequency divider using a 74HC393 ripple counter with a selectable output stage.
Practical case: NE555 Delay-On Timer for READY Indicator
Level: Basic – Build an RC-timed delay circuit to activate a READY indicator seconds after power is applied.
Practical case: 0 to 9 BCD Decimal Counter
Level: Medium | Build a 0-9 BCD counter using the 74HC90 IC to visualize binary progression via LEDs.