TCAM device and operating method thereof
US10482962B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 15, 2018 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A ternary content addressable memory (TCAM) device includes a memory cell. The memory cell includes a data storage circuit, a limiter circuit, and a discharge circuit. The data storage circuit includes a first resistor and a second resistor connected in series to divide a voltage corresponding to search data, and configured to store cell data. The limiter circuit is configured to receive the divided voltage through an input terminal and transmit an output voltage through an output terminal based on a level of the divided voltage. The discharge circuit discharges a matching line indicating whether the stored cell data matches with the search data, based on the output voltage of the limiter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.