Invention Grant
- Patent Title: Static RAM
- Patent Title (中): 静态RAM
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Application No.: US13226726Application Date: 2011-09-07
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Publication No.: US08797786B2Publication Date: 2014-08-05
- Inventor: Shinichi Moriwaki
- Applicant: Shinichi Moriwaki
- Applicant Address: JP Yokohama
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama
- Agency: Fujitsu Patent Center
- Priority: JP2010-260338 20101122
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/413 ; G11C11/412 ; G11C11/41 ; G11C11/418 ; G11C8/08 ; G11C11/419 ; G11C7/18 ; G11C8/14

Abstract:
A static RAM includes a plurality of word lines, a plurality of global bit line pairs, a plurality of static-type memory cells, a plurality of sense amplifiers, a plurality of local bit line pairs provided in correspondence with each global bit line pair, and a plurality of global switches, wherein the plurality of static-type memory cells is connected to the corresponding local bit line pair in response to a row selection signal, and at the time of read, the row selection signal is applied to the word line and after the corresponding local bit line pair is brought into a state corresponding to contents stored in the memory cell, application of the row selection signal is stopped and then the corresponding global switch is brought into a connection state and after changing the state of the global bit line pair, the corresponding sense amplifier is operated.
Public/Granted literature
- US20120127782A1 STATIC RAM Public/Granted day:2012-05-24
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