| Presentation | 2012-11-27 Accurate I/O Buffer Impedance Self-adjustment using Threshold Voltage and Temperature Sensors Zhi LI, Hiroshi TSUTSUI, Hiroyuki OCHI, Takashi SATO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the increased operating frequency and the reduction of feature size, achieving low error-rate data transmission between LSIs is an important field of research. In particular, input/output (I/O) impedance matching, as one of the necessary technologies for high-speed transmission, is strongly required. In this paper, we propose an architecture of output buffer whose impedance is self-adjustable against process variation and temperature characteristic of MOS transistors. The proposed architecture utilizes on-chip sensor circuits to capture threshold voltages and temperatures. Based on a commercial 65 nm CMOS technology. The proposed method has been verified. Without the use of reference resistor, it successfully adjusts the I/O impedance within 2.36% and 1.4% around a target of 50Ω through simulation and measurement, respectively, regardless of the process parameters and temperature. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | I/O buffer / self-adjustment / threshold voltage sensor / temperature sensor |
| Paper # | VLD2012-79,DC2012-45 |
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| Conference Information | |
| Committee | VLD |
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| Conference Date | 2012/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | VLSI Design Technologies (VLD) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accurate I/O Buffer Impedance Self-adjustment using Threshold Voltage and Temperature Sensors |
| Sub Title (in English) | |
| Keyword(1) | I/O buffer |
| Keyword(2) | self-adjustment |
| Keyword(3) | threshold voltage sensor |
| Keyword(4) | temperature sensor |
| 1st Author's Name | Zhi LI |
| 1st Author's Affiliation | Dept. of Communications and Computer Engineering, Graduate School of Informatics, Kyoto University() |
| 2nd Author's Name | Hiroshi TSUTSUI |
| 2nd Author's Affiliation | Dept. of Communications and Computer Engineering, Graduate School of Informatics, Kyoto University |
| 3rd Author's Name | Hiroyuki OCHI |
| 3rd Author's Affiliation | Dept. of Communications and Computer Engineering, Graduate School of Informatics, Kyoto University |
| 4th Author's Name | Takashi SATO |
| 4th Author's Affiliation | Dept. of Communications and Computer Engineering, Graduate School of Informatics, Kyoto University |
| Date | 2012-11-27 |
| Paper # | VLD2012-79,DC2012-45 |
| Volume (vol) | vol.112 |
| Number (no) | 320 |
| Page | pp.pp.- |
| #Pages | 6 |
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