| 摘要 |
PURPOSE: Apparatus for controlling a bit line precharge voltage(VBLP) and a cell plate voltage(VCP) connects an output terminal of VBLP generator to an output terminal of VCP generator for a predetermined time in case of a power-up operation, reduces noises generated in charge pump operation, and prevents a current consumption and a malfunction. CONSTITUTION: Apparatus for controlling VBLP and VCP includes a cell plate voltage(VCP) generator(10) and a bit line precharge voltage(VBLP) generator(20), and a sense-amplifier. The sense-amplifier(30) certainly senses a data of a memory cell, amplifies the data, and connects the data to the outside. A delay circuit(40) delays the input signal in case of an initial power-up operation for a predetermined time. A switching part(50) is connected between a cell plate voltage(VCP) terminal and a bit line precharge voltage(VBLP) terminal, receives a signal delayed for a predetermined time through the delay circuit, and performs an on/off switching operation. Thereby, the apparatus reduces noises generated in charge pump operation, and prevents a current consumption and a malfunction.
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