Invention Grant
- Patent Title: Ternary content addressable memory using phase change devices
- Patent Title (中): 使用相变装置的三元内容可寻址存储器
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Application No.: US12399346Application Date: 2009-03-06
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Publication No.: US08120937B2Publication Date: 2012-02-21
- Inventor: Brian L. Ji , Chung H. Lam , Robert K. Montoye , Bipin Rajendran
- Applicant: Brian L. Ji , Chung H. Lam , Robert K. Montoye , Bipin Rajendran
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Ido Tuchman; Vazken Alexanian
- Main IPC: G11C10/00
- IPC: G11C10/00 ; G11C11/00 ; G11C11/56

Abstract:
A content addressable memory device with a plurality of memory cells storing ternary data values of high, low, and don't care. An aspect of the content addressable memory device is the use of first memory elements and second memory elements in the memory cells. The first and second memory elements are electrically coupled in parallel circuit to a match-line. The first memory elements are coupled to first word-lines and the second memory elements are coupled to second word-lines. The first memory elements are configured to store low resistance states if the ternary data value is low and high resistance states if the ternary data value is either high or don't care. The second memory elements are configured to store the low resistance states if the ternary data value is high and the high resistance states if the ternary data value is either low or don't care.
Public/Granted literature
- US20100226161A1 TERNARY CONTENT ADDRESSABLE MEMORY USING PHASE CHANGE DEVICES Public/Granted day:2010-09-09
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