Semiconductor memory device with dummy word line/sense amplifier activation

A semiconductor memory device comprising:

• a plurality of semiconductor memory cells arranged in a matrix array;
• a plurality of word lines each commonly coupled to the semiconductor memory cells on the same row;
• a plurality of pairs of data lines each pair commonly coupled to the semiconductor memory cells on the same column for the transfer of data with respect to these memory cells;
• sense amplifier means coupled to said plurality of pairs of data lines for amplifying data transferred through one of said data line pairs;
• a dummy word line having a signal transfer property corresponding to those of said word lines;
• dummy selection signal generating means coupled to said dummy word line for supplying a dummy selection signal to said dummy word line every time an address designating operation is effected;
• and
• energizing signal generating means, coupled to said dummy word line for producing a first energizing signal for a preset period of time in each operation cycle to activate said sense amplifier means in response to a dummy selection signal transmitted through said dummy word line.

A semiconductor memory device comprising:

• a plurality of semiconductor memory cells arranged in a matrix array;
• a plurality of word lines each commonly coupled to the semiconductor memory cells in each row of said matrix array;
• a plurality of data lines each commonly coupled to the semiconductor memory cells in each column of said matrix array for the transfer of data with respect to these memory cells;
• a sense amplifier means coupled to said plurality of data lines for amplifying data transferred through one of said data lines;
• a dummy word line having a signal transfer property corresponding to those of said word lines;
• a dummy selection signal generating means coupled to said dummy word line for supplying a dummy selection signal to said dummy word line every time an address designating operation is effected;
• and
• energizing signal generating means coupled to said dummy word line for producing a first energizing signal for a preset period of time in each operation cycle to activate said sense amplifier in response to a dummy selection signal transmitted through said dummy word line.