Invention Grant
- Patent Title: Wide range multiport bitcell
- Patent Title (中): 宽范围多端口位单元
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Application No.: US13953473Application Date: 2013-07-29
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Publication No.: US08971096B2Publication Date: 2015-03-03
- Inventor: Changho Jung , Rakesh Vattikonda , Nishith Desai , Sei Seung Yoon
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Haynes and Boone, LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/419

Abstract:
A multiport bitcell including a pair of cross-coupled inverters is provided with increased write speed and enhanced operating voltage range by the selective isolation of a first one of the cross-coupled inverters from a power supply and ground during a write operation. The write operation occurs through a write port that includes a transmission gate configured to couple a first node driven by the first cross-coupled inverter to a write bit line. A remaining second cross-coupled inverter in the bitcell is configured to drive a second node that couples to a plurality of read ports.
Public/Granted literature
- US20150029782A1 WIDE RANGE MULTIPORT BITCELL Public/Granted day:2015-01-29
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