Patent ID: 9741410
Date: 2017-08-22
CPC Classifications: G11C

Claim:
1. A column select device configured to select one or more target columns of bit cells within which a write operation is to be performed, the column select device comprising: a first power supply rail having a first voltage level; a second power supply rail having a second voltage level lower than the first voltage level; voltage boosting circuitry configured to: generate a column select signal with a selected voltage level, wherein the column select signal with the selected voltage level is supplied to one or more column select transistors of the one or more target columns; and generate a column select signal with an unselected voltage level, wherein the column select signal with the unselected voltage level is supplied to one or more column select transistors of one or more unselected columns other than the one or more target columns, and wherein at least one of the selected voltage level and the unselected voltage level is outside of a voltage range between the first voltage level and the second voltage level.