Patent ID: 8472261
Filing Date: 2013-06-25
Classification: G11C

Abstract:
1. A reading device for a memory array comprising a plurality of memory cell columns, the reading device comprising: a plurality of first sensing amplifier groups, each selectively generating a first sensing output signal; a second sensing amplifier group generating a second sensing output signal; and an output unit, coupled to the plurality of first sensing amplifier groups and the second sensing amplifier group, temporarily storing the second sensing output signal and the first sensing output signals, and selectively outputting one of the second sensing output signal and the first sensing output signals according to a page address signal, wherein in a reading operation period, the reading device reads data from a column group among the plurality of memory cell columns to the plurality of first sensing amplifier groups according to a column address signal, and the column group comprises a plurality of specific column sets, and wherein in the reading operation period, when the page address signal indicates an initial input address, data read from the specific column set corresponding to the initial input address serves as initial address data, and the initial address data is transmitted to the second sensing amplifier group, and the second sensing amplifier group generates the second sensing output signal according to the initial address data.