Differential sensing amplifier for content addressable memory

Details Differential sensing amplifier for content addressable memory Differential sensing amplifier for content addressable memory

H - Electricity

03

F

H03F 3/45 (2006.01) G11C 7/06 (2006.01) G11C 15/04 (2006.01) H03K 17/94 (2006.01)

Patent

CA 2273665

A differential sensing amplifier for content addressable memory is disclosed. In the differential sensing amplifier there is a detection circuit for detecting at an input node a change in an input signal comprising, a differential amplifier having a sense node and a reference node, a means for alternating the differential amplifier between a precharge phase and a sense phase, a precharge means for providing an input signal precharge voltage to the input signal via an input device, said input device selectively coupling the sense node to the input signal upon a change in the input signal, and a reference means for providing the reference node with a reference signal that continuously tracks the input precharge voltage during the precharge phase and actively maintains the input signal precharge voltage during the sense phase. In a specifically preferred embodiment the invention provides a sensing amplifier circuit for detecting a match or mismatch search condition on a high density content addressable memory matchline that is capable of rapidly sensing the capacitive matchline, limiting the matchline voltage swing sensing all matchlines simultaneously, and providing the match and mismatch result for post processing, all under relatively low dynamic power while consuming little circuit area.

Affiliated with

Also associated with

Rating

Differential sensing amplifier for content addressable memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential sensing amplifier for content addressable memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential sensing amplifier for content addressable memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1415918