Patent ID: 7046577
Filing Date: 2006-05-16
Classification: G11C

Abstract:
1. An address decoder for selectively applying to word lines of a memory array signals of variable polarity, negative or positive, each signal having a value that varies according to a word line address applied to the decoder, the address decoder comprising: a group decoder delivering group selection signals of variable polarity for selecting a group of word lines from a plurality of groups of word lines; at least one subgroup decoder delivering subgroup selection signals of variable polarity for selecting a subgroup of word lines from a plurality of subgroups of word lines, each subgroup of word lines comprising a set of word lines belonging to different groups of word lines; and word line drivers with one word line driver per word line, each comprising means for multiplexing the group and subgroup selection signals, for selecting and selectively applying one of these signals to a word line.