Patent ID: 6014337
Filing Date: 2000-01-11
Classification: G11C

Abstract:
A semiconductor storage device having a plurality of banks therein, comprising:a main drive circuit comprising a main SAPN circuit, provided for each bank, for driving a sense amplifier; andan auxiliary drive circuit comprising a sub-SAPN circuit for holding electric potential after driving the sense amplifier,wherein said main SAPN circuit of each bank is commonly connected to a VDD wiring and a GND wiring comprising a main power-supply wiring,wherein said sub-SAPN circuit of each bank is connected to each of a VDD wiring and a GND wiring provided for each bank and smaller in capacity than the main power-supply wiring, andwherein after completion of a sensing operation by the sense amplifier of each bank, only the sub-SAPN circuit is set in an active state to hold electric potential of the sense amplifier.