Patent Number: 8,089,793

Title: Dynamic random access memory based content addressable storage element with concurrent read and compare

Abstract: A content addressable memory (CAM) cell includes a first storage element for storing a data value, a second storage element for storing the data value, and a compare circuit having first inputs to receive from the first storage element a first complementary data signal indicative of the data value, second inputs to receive from the second storage element a second complementary data signal indicative of the data value, third inputs to receive comparand data, and an output coupled to a match line. The CAM cell allows for simultaneous read and compare operations, as well as simultaneous refresh and compare operations.

Inventors: Gharia; Nilesh A. (San Jose, CA)

Assignee: NetLogic Microsystems, Inc.

International Classification: G11C 15/00 (20060101)

Expiration Date: 2020-01-03 0:00:00