Patent ID: 7102912

Claim:
An integrated semiconductor memory device comprising: a memory cell array comprising a first bit line and a second bit line; a connection to apply a mid-voltage having a voltage level that ranges from a first voltage potential to a second voltage potential; a first controllable switch; a control unit configured to produce a control signal; and a controllable resistor including a control connection to apply the control signal from the control unit; wherein: the first and second bit lines are connected via the controllable resistor to the connection that applies the mid-voltage; the memory cell array is operable in a first operating state and a second operating state; the controllable resistor becomes a low-value resistor in the first operating state of the memory cell array and is operable in a first mode of operation and a second mode of operation, where the controllable resistor has a lower resistance value in the second mode of operation in comparison to a resistance value of the controllable resistor in the first mode of operation; the controllable resistor becomes a high-value resistor in the second operating state of the memory cell array; in the first operating state of the memory cell array, the first controllable switch is on and the first bit line is connected to the second bit line; the control unit is configured such that, during a first time period in the first operating state of the memory cell array, the control unit produces a first control signal that sets the controllable resistor in the first mode of operation; the control unit is further configured such that, during a second time period that is subsequent the first time period in the first operating state of the memory cell array, the control unit produces a second control signal that sets the controllable resistor in the second mode of operation; and the control unit is further configured such that, during a third time period that is subsequent the second time period in the first operating state of the memory cell array, the control unit produces the first control signal that sets the controllable resistor in the first mode of operation.