US 2026/0303072 A1Published application

Synchronous circuit

AssigneeSTMicroelectronics International N.V.

InventorsRiccardo CONDORELLI, Salvatore COSTA

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Abstract

The present disclosure relates to a synchronous circuit including a plurality of flip-flops, and providing an updated output at each edge of a first type of a first clock signal. A first circuit includes first flip-flops of the plurality of flip-flops, synchronized on a first type of edges of a second clock signal having half the frequency of the first clock signal. The first circuit provides a first output updated at each first type edge of the second clock signal. A second circuit includes second flip-flops of the plurality of flip-flops, synchronized on a second type of edges of the second clock signal. The second circuit provides a second output updated at each second type edge of the second clock signal. A combinational circuit receives the first and second output and provides the output of the synchronous circuit.

Claims15

Dependent claims

A synchronous circuit, comprising:

a plurality of flip-flops configured to provide an updated output at each edge of a first type of a first clock signal:
a first circuit comprising first flip-flops of the plurality of flip-flops, the first flip-flops being synchronized and updated on a first type of edges of a second clock signal having a frequency equal to half of the frequency of the first clock signal, the first circuit being configured to provide a first output updated at each first type edge of the second clock signal;
a second circuit comprising second flip-flops of the plurality of flip-flops, the second flip-flops being synchronized and updated on a second type of edges of the second clock signal, the second circuit being configured to provide a second output updated at each second type edge of the second clock signal;
and
a combinational circuit receiving the first and second outputs and being configured to provide the output of the synchronous circuit from the first and second outputs.

2 more elements

Dependencies are inferred from the claim text.