Invention Grant
- Patent Title: SPSRAM wrapper
- Patent Title (中): SPSRAM封装
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Application No.: US14078754Application Date: 2013-11-13
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Publication No.: US09076553B2Publication Date: 2015-07-07
- Inventor: Wei-jer Hsieh , Chiting Cheng , Chien-Kuo Su , Cheng Hung Lee , Tsung-Yung Jonathan Chang
- Applicant: Taiwan Semiconductor Manufacturing Company Limited
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company Limited
- Current Assignee: Taiwan Semiconductor Manufacturing Company Limited
- Current Assignee Address: TW Hsin-Chu
- Agency: Cooper Legal Group, LLC
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/418 ; G11C8/16 ; G11C8/18

Abstract:
Among other things, one or more techniques or systems for facilitating access operations to a single port memory device are provided. Multiple access operations to a single port memory device, such as a 6 transistor bitcell array of an SPSRAM, are performed during a single clock period of a system clock. In an embodiment, a wrapper controller initiates a first access operation during a first clock period of the system clock based upon a rising edge of the system clock. Responsive to receiving an operation complete signal during the first clock operation, the wrapper controller initiates a second access operation to the single port memory device during the first clock period. In this way, multi-port access functionality is implemented, such as in a serial manner to mitigate operation disturbs, for a single port memory device that occupies a relatively smaller area than a multi-port memory device for improved storage density.
Public/Granted literature
- US20150131365A1 SPSRAM WRAPPER Public/Granted day:2015-05-14
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