SR flip flop Design

Thread Starter


Joined Oct 19, 2006
I have a D flip flop (NL17SZ74: configured as a 'set/reset' Latch. The 'set' part of the flip flop is set by a momentary push button to latch. What i would like for the reset part is automatically with a single chip solution or circuit, test this part of a circuit for functionality.
Set (active low) Reset (active low) Q
1 Negative going pulse 0 latched
Negative going Pulse 1 1 latched
0 0 Keep Previous state
1 1 Not allowed

If its not clear i will send a cct diag, but if someone knows a single chip solution that does this it would be great!!!!