J-K Flip-Flop with Clock Enable and Synchronous Reset and Set

FJKRSE is a single J-K-type flip-flop with J, K, synchronous reset (R), synchronous set (S), and clock enable (CE) inputs and data output (Q). When synchronous reset (R) is High, all other inputs are ignored and output Q is reset Low. (Reset has precedence over Set.) When synchronous set (S) is High and R is Low, output Q is set High. When R and S are Low and CE is High, output Q responds to the state of the J and K inputs, according to the following truth table, during the Low-to-High clock (C) transition. When CE is Low, clock transitions are ignored. The default initial state of the flip-flop is zero.

Inputs Output
R S CE J K C Q
1 X X X X 0
0 1 X X X 1
0 0 0 X X X No Chg
0 0 1 0 0 X No Chg
0 0 1 0 1 0
0 0 1 1 0 1
0 0 1 1 1 Toggle

Parameters

Parameter Description Units Default
IC Output initial state.   LOW
CLKTPLH Delay from clock to out high. s DGTDELAY
CLKTPHL Delay from clock to out low. s DGTDELAY
PRETPLH Delay from set to out high. s DGTDELAY
PRETPHL Delay from set to out low. s DGTDELAY
CLRTPLH Delay from reset to out high. s DGTDELAY
CLRTPHL Delay from reset to out low. s DGTDELAY
IN_MODE Inputs mode. IN
OUT_MODE Outputs mode.   OUT
IOMODEL The name of an I/O model, which describes the device‚Äôs loading and driving characteristics.   DGTDEFIOMODEL
POWER_NODE Digital power node name. Is the node used by the interface subcircuits which connect analog nodes to digital nodes.   $G_DPWR
GROUND_NODE Digital ground node name. Is the node used by the interface subcircuits which connect analog nodes to digital nodes.   $G_DGND