A 2.6-Gbps/pin SIMOX-CMOS Low-Voltage-Swing Interface Circuit

Yusuke OHTOMO, Masafumi NOGAWA, Masayuki INO

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Summary :

This paper describes a new active pull-up (APU) interface for high-speed point-to-point transmission. The APU circuit is used to speed up a low-power-consumption open-drain-type interface. It pulls up the output at a fixed duration and this limiting of the pull-up duration prevents the pull-up operation from going into a counter phase at over 1-Gbps operation. Measurements of test chips fabricated with 0.25-µm bulk CMOS show. 1.7-Gbps error-free operation for the APU interface and 1.2-Gbps operation for the open-drain-type interface: The APU interface is 1.4 faster than the open-drain type. The application of a 0.25-µm SIMOX-CMOS device to the APU interface increases the bit rate 1.5 times compared with 0.25-µm bulk CMOS. Altogether the interface covers the bit rate of 2.4 Gbps, which is a layer of the communication hierarchy. The APU interface circuit can be applied to large-pin-count LSIs because of its full-CMOS single-rail structure.

Publication
IEICE TRANSACTIONS on Electronics Vol.E79-C No.4 pp.524-529
Publication Date
1996/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Ultra-High-Speed LSIs)
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