74HC574D,652 Nexperia | Nexperia 74HC574D,652 Octal D Type Flip Flop IC, 3-State, 20-Pin SOIC | 483-6623 | RS Components
![flipflop - I designed neg. edge-triggered jk flip-flop circuit in LTspice XVII. But, it doesn't work - Electrical Engineering Stack Exchange flipflop - I designed neg. edge-triggered jk flip-flop circuit in LTspice XVII. But, it doesn't work - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/EO1zt.png)
flipflop - I designed neg. edge-triggered jk flip-flop circuit in LTspice XVII. But, it doesn't work - Electrical Engineering Stack Exchange
![digital logic - Master-slave JK flip flop (74HC73) doesn't toggle - Electrical Engineering Stack Exchange digital logic - Master-slave JK flip flop (74HC73) doesn't toggle - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/rXYNI.png)