Patent ID: 8218384
Filing Date: 2012-07-10
Classification: G11C

Abstract:
1. A driving method of a semiconductor memory device comprising: disconnecting a bit line from a sense amplifying circuit according to a bit line select control signal after performing a read operation in response to a read command; connecting the sense amplifying circuit to a data bus according to a column select control signal after the bit line is disconnected from the sense amplifying circuit; deactivating an output terminal of the sense amplifying circuit that is disconnected from the bit line and is connected to the data bus, during a restore section in synchronization with a command following the read command; and delivering the data on the bit line to the output terminal of the sense amplifying circuit to update the output terminal of the sense amplifying circuit by connecting the sense amplifying circuit, having the deactivated output terminal, to the bit line according to the bit line select control signal.