Invention Grant
- Patent Title: Architecture for ternary content-addressable memory search
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Application No.: US16811574Application Date: 2020-03-06
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Publication No.: US11133065B1Publication Date: 2021-09-28
- Inventor: Manik Advani , Tomoko Ogura Iwasaki
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G11C15/00
- IPC: G11C15/00 ; G11C15/04 ; G11C16/04 ; G11C11/408 ; G11C7/12 ; G11C7/10 ; G11C16/10

Abstract:
A search pattern is generated based on an input search word comprising a first sequence of bits. The search pattern comprises a representation of the input search word and a representation of an inverse of the input search word. The search pattern is provided as input to search lines of a ternary content-addressable memory (TCAM) block. A subset of the search lines is set to a logical high state based on a first portion of the input search word being designated as don't-care bits. The search pattern causes at least one string in the CAM block to be conductive and provide a signal in response to a data entry stored on the string comprising a second portion of the input search word that excludes the don't-care bits. A location of the data entry is determined and output.
Public/Granted literature
- US20210280250A1 ARCHITECTURE FOR TERNARY CONTENT-ADDRESSABLE MEMORY SEARCH Public/Granted day:2021-09-09
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