Patent ID: 7075843
Filing Date: 2006-07-11
Classification: G11C

Abstract:
1. A sense amplifier for Mask Read Only Memory, comprising: a multiplexer; a plurality of comparators, each of the comparators having a first input coupled to a respective output of the multiplexer; a plurality of first selected transistors each having a respective gate connected to a word line select, each of the first selected transistors having a fist doping area connected to the multiplexer for generating a plurality of signals and a second doping area connected to a selected bit line; and a plurality of second selected transistors each having a respective gate connected to the word line select, each of the second selected transistors having a first doping area connected to a second input of a respective one of the comparators and a second doping area connected to an external voltage, wherein a cell voltage status is determined when each of the signals and each of the first doping areas of the second selected transistors are connected to each of comparators.