Semiconductor circuit and predischarge method of semiconductor circuit

A semiconductor circuit comprising;

• a first stage block including a plurality of first stage dynamic circuits and configured to output a predischarge result in the respective first stage dynamic circuits to blocks cascade connected to later stages, each of the first stage dynamic circuit configured to input predischarge data so as to predischarge dynamic nodes of the respective first stage dynamic circuits, configured such that the dynamic nodes of the respective first stage dynamic circuits are precharged with a predetermined cycle and;
• a predischarge data input circuit configured to generate the predischarge data and to input the predischarge data into the first stage block;
• a predischarge signal generating circuit configured to generate a predischarge signal to actuate the predischarge data input circuit before precharge timing of the respective dynamic nodes of the respective first stage dynamic circuits;
• and
• at least more than one next stage blocks including a plurality of next stage dynamic circuits and configured to output predischarge results of the respective next stage dynamic circuits sequentially to blocks cascade connected to later stages, each of the next stage dynamic circuit configured to input the predischarge result of the previous block so as to predischarge dynamic nodes of the respective next stage dynamic circuits, configured such that the dynamic nodes of the respective next stage dynamic circuits are precharged with a predetermined cycle.

A semiconductor circuit comprising:

• a first stage block including a plurality of first stage dynamic circuits, each of the first stage dynamic circuit includes predischarge elements connected respectively to dynamic nodes of the respective first stage dynamic circuits to predischarge the dynamic nodes, configured such that the dynamic nodes of the respective first stage dynamic circuits are precharged with a predetermined cycle;
• at least more than one next stage blocks including a plurality of next stage dynamic circuits, each of the next stage dynamic circuit includes predischarge elements connected respectively to dynamic nodes of the respective next stage dynamic circuits to predischarge the dynamic nodes, configured such that the dynamic nodes of the respective next stage dynamic circuits are precharged with a predetermined cycle;
• and
• a predischarge signal generating circuit configured to generate a predischarge signal to actuate the respective predischarge elements of the respective first stage dynamic circuits and the respective next stage dynamic circuits before precharge timing of the respective dynamic nodes of the respective first stage dynamic circuits and the respective next stage dynamic circuits.

A method for predischarging a semiconductor circuit, the semiconductor circuit configured such that plural-stage blocks including a plurality of dynamic circuits are cascade connected and dynamic nodes of the respective dynamic circuits are precharged with a predetermined cycle, the method comprising:

• generating a predischarge signal to actuate predischarge elements for predischarging the respective dynamic nodes before precharge timing of the respective dynamic nodes in a first stage block of the plural-stage blocks;
• inputting the predischarge signal to predischarge the respective dynamic nodes in the first stage block;
• outputting a predischarge result in the first stage block to a block cascade connected to a later stage;
• and
• inputting the predischarge result to predischarge the respective dynamic nodes in a next stage block of the plural-stage blocks and outputting the predischarge result to a later stage block where the later stage block is cascade connected.

A method for predischarging a semiconductor circuit, the semiconductor circuit configured such that plural-stage blocks including a plurality of dynamic circuits are cascade connected and dynamic nodes of the respective dynamic circuits are precharged with a predetermined cycle, the method comprising:

• generating a predischarge signal before precharge timing of the respective dynamic nodes in a first stage blocks of the plural-stage blocks and creating predischarge data to predischarge the respective dynamic nodes;
• inputting the predischarge data to predischarge the respective dynamic nodes in the first stage block;
• outputting a predischarge result in the first stage block to a block cascade connected to a later stage;
• and
• inputting the predischarge result to predischarge the respective dynamic nodes in a next stage block of the plural-stage blocks and outputting the predischarge result to a later stage block where the later stage block is cascade connected.