COLUMN DECODER CIRCUIT OF NONVOLATILE MEMORY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a column decoder circuit of nonvolatile memory device.

SOLUTION: A nonvolatile memory device disclosed here is connected between a 1st voltage and a control node, and includes; a 1st transistor controlled by a 2nd voltage; a 2nd transistor connected between the 1st voltage and the control node and controlled by a 3rd voltage; and a word line driver which drives a word line responding to the voltage of the control node. The 2nd voltage is set to the grounding voltage at the time of erasure operation and the 3rd voltage is set to the power source voltage at the time of erasure operation.

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