H03K3/356173

Pulsed semi-dynamic fast flip-flop with scan

A flip-flop includes a pulse-generator and a pulse-controlled latch. The pulse generator includes a first inverter to invert a clock signal, a second inverter to invert the inverted clock signal to generate a delayed clock signal, and a NOR gate having a first input coupled to an output of the first inverter, a second input coupled to the output of the second inverter, and an output, which, in operation, provides a pulse signal in response to a rising edge of a received clock signal. The pulse-controlled latch circuit has a data input and is controlled by the pulse signal and the delayed clock signal. The flip-flop may include a multiplexer to select an input signal.

PULSED SEMI-DYNAMIC FAST FLIP-FLOP WITH SCAN
20180212596 · 2018-07-26 ·

A flip-flop includes a pulse-generator and a pulse-controlled latch. The pulse generator includes a first inverter to invert a clock signal, a second inverter to invert the inverted clock signal to generate a delayed clock signal, and a NOR gate having a first input coupled to an output of the first inverter, a second input coupled to the output of the second inverter, and an output, which, in operation, provides a pulse signal in response to a rising edge of a received clock signal. The pulse-controlled latch circuit has a data input and is controlled by the pulse signal and the delayed clock signal. The flip-flop may include a multiplexer to select an input signal.

Integrated level translator and latch for fence architecture

The present disclosure relates to integrated level translator and latch circuits and, more particularly, to an integrated level translator and latch circuits for fence architectures in SRAM cells. The integrated level translator and latch for input signals includes a first clock (CLKS) and a second clock (CLKH). The first clock (CLKS) is used as a precharge and evaluation clock with its timing being critical for forward edge and the second clock (CLKH) is a latch clock.

Decision feedback equalizer and semiconductor integrated circuit
09973357 · 2018-05-15 · ·

A decision feedback equalizer includes a comparator configured to output a constant voltage in a reset period and to output a differential voltage corresponding to differential input signals in an evaluation period, a latch circuit configured to hold the differential voltage in the evaluation period, and an adjuster configured to adjust a logical threshold of the latch circuit closer to the output voltage in the reset period.

LATCH, PROCESSOR INCLUDING LATCH, AND COMPUTING APPARATUS

The present disclosure relates to a latch, a processor including the latch, and a computing apparatus. A latch with an inverted output is provided, including: an input stage configured to receive a latch input; an output stage configured to output a latch output; an intermediate node disposed between an output of the input stage and an input of the output stage, wherein the output stage is configured to receive a signal at the intermediate node as an input; and a feedback stage configured to receive the latch output and provide a feedback to the intermediate node, wherein feedback stage assumes a logic-high state, a logic-low state, and a high-impedance state, wherein the latch output is inverted from the latch input.

Flip flop using dual inverter feedback
09929723 · 2018-03-27 · ·

Embodiments of the present disclosure relate to a flip flop circuit that obviates the need of a transmission gate. The flip flop includes a first match multiplexer, a second match multiplexer and a separable inverter. The first match multiplexer receives an input data signal and generates a feedback output based on the input data signal and the logic levels at two nodes coupled to the first match multiplexer. The separable inverter receives the feedback output and switches the logic level of one of two nodes but maintains the logic level per each clock cycle. The second match multiplexer generates a signal output based on the logic levels at the two nodes and the signal output that is fed back into the second match multiplexer. Embodiments may reduce power consumption and operate at lower voltages.

INTEGRATED LEVEL TRANSLATOR AND LATCH FOR FENCE ARCHITECTURE
20180083629 · 2018-03-22 ·

The present disclosure relates to integrated level translator and latch circuits and, more particularly, to an integrated level translator and latch circuits for fence architectures in SRAM cells. The integrated level translator and latch for input signals includes a first clock (CLKS) and a second clock (CLKH). The first clock (CLKS) is used as a precharge and evaluation clock with its timing being critical for forward edge and the second clock (CLKH) is a latch clock.

Latch, processor including latch, and computing apparatus

The present disclosure relates to a latch, a processor including the latch, and a computing apparatus. A latch with an inverted output is provided, including: an input stage configured to receive a latch input; an output stage configured to output a latch output; an intermediate node disposed between an output of the input stage and an input of the output stage, wherein the output stage is configured to receive a signal at the intermediate node as an input; and a feedback stage configured to receive the latch output and provide a feedback to the intermediate node, wherein feedback stage assumes a logic-high state, a logic-low state, and a high-impedance state, wherein the latch output is inverted from the latch input.

Flip-flop circuit with latch bypass
09680450 · 2017-06-13 · ·

In one form, a flip-flop comprises a master latch, a slave latch, and a multiplexer. The master latch has an input for receiving a data input signal, and an output, and operates in transparent and latching modes during respective first and second phases of a clock signal. The slave latch has an input coupled to the output of the master latch, and an output, and operates in the transparent and latching modes during the second and first phases of the clock signal, respectively. The multiplexer has a first input coupled to the output of the slave latch, a second input coupled to the output of the master latch, and an output for providing a data output signal, and provides the first input to the output during the first phase of the clock signal, and the second input to the output during the second phase of the clock signal.

Pulse latch reset tracking at high differential voltage

A method and an apparatus for generating an internal memory clock are provided. The apparatus includes a pulse generator configured to receive a first clock signal in a first power domain and initiate a second clock signal in a second power domain in response to the first clock signal. The first power domain provides a first voltage for logic operations and the second power domain provides a second voltage for memory operations. The apparatus includes a tracking circuit configured to generate a reset signal based on a voltage level of the first power domain. The reset signal may be configured to reset the pulse generator in the first power domain. The apparatus may further include a latch configured to receive the second clock signal in the second power domain.