Hi, am trying to build a JK Flip flop using NAND gate, but the circuit i build is not simulating, i

The discussion addresses difficulties in simulating a JK flip-flop constructed solely from NAND gates. Key issues include understanding the flip-flop's operation relative to clock edges (rising or falling), the necessity of temporary storage elements such as cascaded latches in a master-slave configuration, and the impact of propagation delays and gate thresholds on correct state transitions. The importance of consulting TTL or CMOS JK flip-flop datasheets for gate-level diagrams is emphasized to guide circuit construction and modifications. Simulation problems may arise from missing current-limiting resistors on LEDs, causing output voltage levels insufficient for logic recognition. Additionally, race conditions inherent in basic JK flip-flop designs require edge-triggered stages to ensure stable state changes. Testing input states against the JK flip-flop truth table and verifying output responses is recommended. Some simulators may struggle with cross-coupled gates due to lack of initialization or propagation delay modeling, necessitating simpler gate tests or inclusion of reset circuitry to establish initial states.
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