Semiconductor circuit and method of operating the circuit

A semiconductor circuit comprising:

• a first transistor gated to a voltage level of a first node and configured to pull up a second node to a first voltage;
• a second transistor gated to a voltage level of a third node and configured to pull down the second node to a second voltage;
• a third transistor connected in series to the second transistor, gated to a voltage level of a clock signal, and configured to pull down the second node;
• a fourth transistor gated to the voltage level of the first node and configured to keep the second node at the second voltage;
• a fifth transistor connected in series to the fourth transistor, gated to a voltage level of an inverted voltage level of the second node, and configured to keep the second node at the second voltage;
• a sixth transistor gated to the inverted voltage level of the second node and configured to keep the second node at the first voltage;
• and
• a seventh transistor connected in series to the sixth transistor, gated to the voltage level of the clock signal, and configured to keep the second node at the first voltage.

A semiconductor circuit performing different operations according to a control signal supplied thereto, the semiconductor circuit comprising:

• a first circuit configured to determine a voltage level of a feedback node based on a voltage level of input data, a voltage level of a latch input node, and a voltage level of a clock signal;
• a second circuit configured to pre-charge the latch input node based on the voltage level of the clock signal;
• a third circuit configured to pull down the latch input node based on the voltage level of the feedback node and the voltage level of the clock signal;
• a latch configured to output output data based on the voltage level of the clock signal and the voltage level of the latch input node;
• and
• a control circuit included in at least one of the first circuit, the second circuit, the third circuit and the latch, and configured to receive the control signal.