Design of a power-efficient CAM using automated background checking scheme for small match line swing
This work reports a fully parallel match-line (ML) structure with an automated background checking (ABC) scheme. MLs are pre-charged by a pulsed current source to minimize power. The proposed ABC scheme monitors the ML sensing using two dummy rows. It digitally adjusts the pulse width and the d...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/100930 http://hdl.handle.net/10220/18233 |
| _version_ | 1811684282091962368 |
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| author | Do, Anh Tuan Yin, Chun Yeo, Kiat Seng Kim, Tony Tae-Hyoung |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Do, Anh Tuan Yin, Chun Yeo, Kiat Seng Kim, Tony Tae-Hyoung |
| author_sort | Do, Anh Tuan |
| collection | NTU |
| description | This work reports a fully parallel match-line (ML)
structure with an automated background checking (ABC)
scheme. MLs are pre-charged by a pulsed current source to
minimize power. The proposed ABC scheme monitors the ML
sensing using two dummy rows. It digitally adjusts the pulse
width and the delay of the search control signals of the CAM
without disturbing the normal operation. Therefore, it can
continuously track the optimum operating point, making the
CAM tolerant to fabrication variations. Additionally, multi-Vt
transistors are used in the CAM cell to reduce the leakage by 15×
while improving the ML discharge speed by 2× when compared
with the standard-Vt devices at 1.2V, 80 oC. The test chip was
prototyped using a standard 65 nm CMOS process. The average
energy consumption is 0.77 fJ/bit/search at 500 MHz /1.2 V. |
| first_indexed | 2024-10-01T04:26:09Z |
| format | Conference Paper |
| id | ntu-10356/100930 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:26:09Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1009302020-03-07T13:24:50Z Design of a power-efficient CAM using automated background checking scheme for small match line swing Do, Anh Tuan Yin, Chun Yeo, Kiat Seng Kim, Tony Tae-Hyoung School of Electrical and Electronic Engineering European Solid State Circuits Conference (2013 : Bucharest, Romania) DRNTU::Engineering::Electrical and electronic engineering This work reports a fully parallel match-line (ML) structure with an automated background checking (ABC) scheme. MLs are pre-charged by a pulsed current source to minimize power. The proposed ABC scheme monitors the ML sensing using two dummy rows. It digitally adjusts the pulse width and the delay of the search control signals of the CAM without disturbing the normal operation. Therefore, it can continuously track the optimum operating point, making the CAM tolerant to fabrication variations. Additionally, multi-Vt transistors are used in the CAM cell to reduce the leakage by 15× while improving the ML discharge speed by 2× when compared with the standard-Vt devices at 1.2V, 80 oC. The test chip was prototyped using a standard 65 nm CMOS process. The average energy consumption is 0.77 fJ/bit/search at 500 MHz /1.2 V. Accepted version 2013-12-12T09:17:44Z 2019-12-06T20:30:57Z 2013-12-12T09:17:44Z 2019-12-06T20:30:57Z 2013 2013 Conference Paper Do, A. T., Yin, C., Yeo, K. S., & Kim, T. T. H. (2013). Design of a power-efficient CAM using automated background checking scheme for small match line swing. 2013 Proceedings of the ESSCIRC (ESSCIRC). https://hdl.handle.net/10356/100930 http://hdl.handle.net/10220/18233 10.1109/ESSCIRC.2013.6649109 en © 2013 IEEE. This is the author created version of a work that has been peer reviewed and accepted for publication by Proceedings of the ESSCIRC 2013, IEEE. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1109/ESSCIRC.2013.6649109 4 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Do, Anh Tuan Yin, Chun Yeo, Kiat Seng Kim, Tony Tae-Hyoung Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title | Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title_full | Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title_fullStr | Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title_full_unstemmed | Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title_short | Design of a power-efficient CAM using automated background checking scheme for small match line swing |
| title_sort | design of a power efficient cam using automated background checking scheme for small match line swing |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/100930 http://hdl.handle.net/10220/18233 |
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