A 6.4-Gb/s Near-Ground Single-Ended Transceiver for Dual-Rank DIMM Memory Interface Systems

Autor: Teva Stone, Wayne Dettloff, B. William F. Stonecypher, Pravin Kumar Venkatesan, Chris Madden, Sanath Bangalore, Kambiz Kaviani, Yi Lu, Bruce Su, Kashinath Prabhu, Barry Daly, Nhat Nguyen, John Eble, Michael Bucher, Liji Gopalakrishnan, Ravi Kollipara, Fred Heaton, Lei Luo
Rok vydání: 2014
Předmět:
Zdroj: ISSCC
ISSN: 1558-173X
0018-9200
DOI: 10.1109/jssc.2013.2280308
Popis: The emergence of cloud computing has driven the demand for high-density, low-latency and high-speed memory interfaces. For such applications the use of multiple dual-inline memory modules (DIMMs) with multiple ranks enables time-efficient processing of high-volume data. However, the deterioration of the channel frequency response due to the presence of DIMM connectors and multiple ranks makes it challenging to perform low-power read and write (R/W) operations at high-speed. Recent works have demonstrated the use of near-ground signaling (NGS) for low-power operation and signal-integrity enhancement with the aid of transmit supply regulation. In contrast to their differential nature, this paper introduces a single-ended NGS transceiver that achieves 6.4Gb/s R/W operations with the aid of low-power equalization and in-situ reference-voltage calibration over a 3.5" total FR4 PCB routing with more than 25mm of package traces in a dual-rank DIMM memory interface system.
Databáze: OpenAIRE