COLUMN DECODERS

摘要

Column decoders are provided. The column decoder includes a power supplier and a column selection signal generator. The power supplier generates a supply voltage signal from a power voltage in response to a control signal enabled from a start point of time of a write mode or a read mode till an end point of time of a burst length. A level of the supply voltage signal is controlled according to the control signal. The column selection signal generator operates while the supply voltage signal is supplied. The column selection signal generator generates one of column selection signals, which is selectively enabled according to a logic combination of a high-order address signal, a mid-order address signal and a low-order address signal which are generated by decoding column address signals.

主权项

1. A column decoder comprising:
a control signal generator configured to generate a control signal enabled from a start point of time of a write mode or a read mode till an end point of time of a burst length; a power supplier configured to generate a supply voltage signal from a power voltage in response to the control signal, a level of the supply voltage signal being controlled according to the control signal; and a column selection signal generator configured to operate while the supply voltage signal is supplied thereto, wherein the column selection signal generator generates one of column selection signals, which is selectively enabled according to a logic combination of a high-order address signal, a mid-order address signal and a low-order address signal which are generated by decoding column address signals.