D Flip Flop
- Gary Cane
Operator Menu Location: Logic Functions
Operator Bitmap:
Functional Description:
The D Flip-Flop or "Delay" Flip-Flop is a logic gate with one-bit memory. It toggles its output whenever its input value switches from LOW to HIGH; otherwise, the output value remains unchanged. The operator has the following truth-table:
x(t) |
x(t-t) |
y(t) |
LOW |
LOW |
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LOW |
HIGH |
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HIGH |
LOW |
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HIGH |
HIGH |
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In the table, y is the output, x is the input, and (delta)t is the loop sampling time.
Design Pad will issue an error on processing if the input pin is not connected.
User-Defined Properties:
Object Name. A string label that identifies the operator
Initial State. The output state (HIGH or LOW) on startup (at time t=0)
Comments: None.
See Also: RS Flip-Flop