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Title:
ANALOG DIGITAL INTERFACE SRAM STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/008946
Kind Code:
A1
Abstract:
The present invention relates to an analog digital interface SRAM structure wherein, by using a structure having a switch added to a bit line structure and an IO circuit of a conventional SRAM, stored digital data can be read as analog data, and analog data can be converted digitally and stored. The analog digital interface SRAM structure comprises: a cell array having a plurality of local cells formed in the transverse and longitudinal directions and having a bit switch formed on a bit line so as to evenly divide a bit line on one side and a bit line on the other side for selecting each local cell in the longitudinal direction; a multi-decoder capable of selecting a local call in the transverse direction and simultaneously selecting a plurality of local cells in the longitudinal direction such that multiple accesses are possible; and an input/output circuit for converting analog data input from the outside into digital data, storing the same in a local cell, converting digital data stored in a local cell into analog data, and outputting the same to the outside. The present invention is advantageous in that analog data can be written in or read from an SRAM without a DAC and an ADC for implementing mixed-signal processing; a value written as an analog value can be read digitally; a value written as a digital value can be read as an analog value; it is possible to reduce the area needed to implement converters such as an ADC and a DAC on a chip; and it is possible to reduce energy consumed in the conversion process.

Inventors:
LEE, Jin Su (107-1202, 31 Wolseo-ro,Dalseo-gu, Daegu, 42782, KR)
PARK, Jun Young (107-1204, 45-15 Bangimun-ro, Eumseong-eup,Eumseong-gun, Chungcheongbuk-do, 27717, KR)
Application Number:
KR2017/007097
Publication Date:
January 11, 2018
Filing Date:
July 04, 2017
Export Citation:
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Assignee:
UX FACTORY CO., LTD. (#704, 182 Pangyoyeok-ro, Bundang-gu,Seongnam-si, Gyeonggi-do, 13524, KR)
International Classes:
G11C11/419; G11C7/16; G11C8/10; G11C11/413
Attorney, Agent or Firm:
DOOSUNG PATENT LAW FIRM (3rd FL, 13, Nonhyeon-ro 81-gi, Gangnam-gu Seoul, 06237, KR)
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