Patent ID: 8873314
Filing Date: 2014-10-28
Classification: G06F,G11C

Abstract:
1. A data coupling circuit, comprising: a local input/output line; a global input/output line; a first sense amplifier configured to provide a write data signal from the global input/output line to the local input/output line; a write driver configured to provide the write data signal to the global input/output line, the write driver configured to couple a first voltage to the global input/output line responsive to an external data signal for a write operation; a read driver configured to provide a read data signal to the global input/output line, the read driver configured to couple a second voltage to the global input/output line responsive to an internal data signal for a read operation, wherein the second voltage is different than the first voltage; and a second sense amplifier configured to provide the read data signal from the global input/output line to a data node.