Sense amplifier circuit and flip-flop

A sense amplifier circuit, comprising:

• a charge module, configured to charge a set signal node and a reset signal node according to a clock signal;
• and
• a sense module, coupled to the charge module and configured to sense and amplify a differential input signal according to the clock signal;
• wherein, the sense module comprises a first amplification circuit, a second amplification circuit, and a cross hopping transfer circuit cross-connected between the first amplification circuit and the second amplification circuit;
• the cross hopping transfer circuit comprises a first transfer circuit and a second transfer circuit;
• the first transfer circuit is configured to transfer a valid signal of the second amplification circuit to the first amplification circuit when sensing is completed and first hopping of the differential input signal occurs, such that a set signal of the set signal node and a reset signal of the reset signal node remain unchanged;
• and the second transfer circuit is configured to transfer a valid signal of the first amplification circuit to the second amplification circuit when the sensing is completed and second hopping of the differential input signal occurs, such that the set signal of the set signal node and the reset signal of the reset signal node remain unchanged.