Sub word line driver and semiconductor integrated circuit device

摘要

A sub word line driver and a semiconductor integrated circuit device having the same are provided. The semiconductor integrated circuit device includes adjacent four sub word line drivers configured to drive four sub word lines in response to signals of four main word lines, wherein first and second sub word line drivers of adjacent sub word line drivers share one keeper transistor with each other, and third and fourth sub word line drivers of the adjacent sub word line drivers share one keeper transistor with each other.

主权项

1. A semiconductor integrated circuit device comprising:
a plurality of main word lines; a plurality of sub word lines configured to be driven in response to a signal of each of the plurality of main word lines, wherein the sub word lines are disposed on a cell area; a first sub word line driver disposed at one edge of the cell area, wherein some lines of the plurality of sub word lines are extended from the first sub word line driver toward the cell area; a second sub word line driver disposed at the other edge of the cell area, wherein some other lines of the plurality of sub word lines are extended from the second sub word line driver toward the cell area; and a keeper transistor for floating prevention configured to connect between a pair of adjacent sub word lines extended from the first sub word line driver, wherein one selected from the some lines of the plurality of sub word lines and another sub word line adjacent to the selected one sub word line are driven in response to signals of different main word lines, respectively, and the signals of the different main word lines have different logic levels.