Power efficient high speed latch circuits and systems
First Claim
1. A combiner latch circuit, comprising:
- an input circuit with a first input, a second input, a clock input, and an inverted clock input;
an output circuit with a first differential output and a second differential output;
wherein the input circuit is connected to the output circuit, and configured to select a state of the output circuit from the group of;
a fourth state comprising the first differential output being at logic 1 and the second differential output being at logic 0; and
a fifth state comprising the first differential output being at logic 0 and the second differential output being at logic 1; and
wherein the input circuit is further configured to;
select the fourth state when the first input is at logic 0 and the second input is at logic 1 and the clock input encounters a leading edge from logic 0 to logic 1 and the output circuit is in the fifth state; and
select the fifth state when the first input is at logic 1 and the second input is at logic 0 and the clock input encounters a leading edge from logic 0 to logic 1 and the output circuit is in the fourth state.
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Accused Products
Abstract
The present invention relates to a combiner latch circuit for generation of one phase differential signal pair or two phase differential signal pairs. The combiner latch circuit comprises an input circuit configured to select a state of the output circuit from a group of: a fourth state comprising the differential output X=1, Y=0, a fifth state comprising the differential output X=0, Y=1. The input circuit is further configured to select the fourth state if the input A=0 and the input B=1 and the clock input encounter a leading edge from 0 to 1 and the output circuit is in the fifth state, and select the fifth state if the input A=1 and the input B=0 and the clock input encounter a leading edge from 0 to 1 and the output circuit is in the fourth state.
15 Citations
7 Claims
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1. A combiner latch circuit, comprising:
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an input circuit with a first input, a second input, a clock input, and an inverted clock input; an output circuit with a first differential output and a second differential output; wherein the input circuit is connected to the output circuit, and configured to select a state of the output circuit from the group of; a fourth state comprising the first differential output being at logic 1 and the second differential output being at logic 0; and a fifth state comprising the first differential output being at logic 0 and the second differential output being at logic 1; and wherein the input circuit is further configured to; select the fourth state when the first input is at logic 0 and the second input is at logic 1 and the clock input encounters a leading edge from logic 0 to logic 1 and the output circuit is in the fifth state; and select the fifth state when the first input is at logic 1 and the second input is at logic 0 and the clock input encounters a leading edge from logic 0 to logic 1 and the output circuit is in the fourth state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification