NOR vs. NAND Latch Interface
Industrial control panels often use a single pair of pushbuttons to trigger multiple redundant safety systems simultaneously. When integrating modules that use different gate-level topologies, interface logic must translate the global signals to match each local component's active-level convention.
The circuit receives global active-high set and reset signals. It must drive two separate internal SR latches: one built from cross-coupled NOR gates, and one built from cross-coupled NAND gates. Both latches must exhibit identical state behavior at their respective q_nor and q_nand outputs.
| set | reset | q_nor | q_nand | |-------|---------|---------|----------| | 0 | 0 | Hold | Hold | | 0 | 1 | 0 | 0 | | 1 | 0 | 1 | 1 | | 1 | 1 | Invalid | Invalid |
Constraints
- Construct one SR latch using only two NOR gates.
- Construct one SR latch using only two NAND gates.
- Drive both latches using the single pair of global
setandresetinputs. - Add appropriate logic gates to condition the signals for the NAND latch.
- Do not use pre-packaged latch or flip-flop components.
Topics
Solve this problem
Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.
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