Folded DRAM CAM cell

Details Folded DRAM CAM cell Folded DRAM CAM cell

2005-01-04

2005-01-04

Mai, Son (Department: 2818)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S189070

Reexamination Certificate

active

06839258

ABSTRACT:
A CAM device combines a folded bit line architecture with a standard six transistor DRAM based CAM cell and includes a sensing scheme where the active and reference bit lines being sensed are each from the same memory array of the CAM device. Noise present in one array therefore appears as common mode noise in both the active and reference bit lines, thereby permitting the sensing operation to be performed accurately even in the presence of increased noise.

REFERENCES:
patent: 5319589 (1994-06-01), Yamagata et al.
patent: 5475825 (1995-12-01), Yonezawa et al.
patent: 5936873 (1999-08-01), Kongetira

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