초록 ▼

Row/column decoder circuits for a semiconductor memory device. Switching elements are used to separate a main power line from the row decoder circuit to block power from the main power line to the row decoder circuit when a word line is not driven. Therefore, the amount of standby current consumptio

Row/column decoder circuits for a semiconductor memory device. Switching elements are used to separate a main power line from the row decoder circuit to block power from the main power line to the row decoder circuit when a word line is not driven. Therefore, the amount of standby current consumption can be reduced. Also, switching elements are used to separate a main power line from the column decoder circuit to block power from the main power line to the column decoder circuit when a bit line is not selected. Therefore, the amount of standby current consumption can be reduced.

대표청구항 ▼

[ What is claimed is:] [1.] A row decoder circuit for a semiconductor memory device which has a plurality of memory cells each including one MOS transistor and one capacitor, comprising:main row decoding means for decoding a row address to select a word line corresponding to the row address;at least

[ What is claimed is:] [1.] A row decoder circuit for a semiconductor memory device which has a plurality of memory cells each including one MOS transistor and one capacitor, comprising:main row decoding means for decoding a row address to select a word line corresponding to the row address;at least two sub row decoding means for supplying a high or low voltage to corresponding word lines in response to an output signal from said main row decoding means;a first power line acting as a source of a supply voltage;a second power line for transferring the supply voltage from said first power line to said main row decoding means;first switching means connected between said first and second power lines;second switching means for switching a corresponding word line to a ground voltage when said first switching means is turned off; andswitching control means for controlling said first and second switching means.