An energy-efficient mobile PAM memory interface for future 3D stacked mobile DRAMs

Majid Jalalifar, Gyung Su Byun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

This paper presents a four-level pulse amplitude modulation (4-PAM) memory I/O interface for 3D stacked DRAMs. 3D integration technology is a promising solution for higher bandwidth and less power consumption due to the shortened link distance. The proposed transceiver is designed for 3D interconnects. The proposed transmitter employs a current mode output driver which sends data through TSVs. The receiver side uses differential amplifiers to decode three voltage levels by comparing the PAM signal with three reference voltages. The proposed scheme is simulated in 40 nm CMOS technology at 1.0 V. We use a highly accurate 3D electromagnetic (EM) simulator such as HFSS for 3D TSV channels simulations. The proposed architecture reduces the power consumption compared with prior works. It also increases the data bandwidth to 6.4 Gb/s/pin. Energy efficiency of proposed 3D mobile PAM I/O memory interface is 1.7 pJ/bit/pin.

Original languageEnglish
Title of host publicationProceedings of the 15th International Symposium on Quality Electronic Design, ISQED 2014
PublisherIEEE Computer Society
Pages675-680
Number of pages6
ISBN (Print)9781479939466
DOIs
StatePublished - 2014
Externally publishedYes
Event15th International Symposium on Quality Electronic Design, ISQED 2014 - Santa Clara, CA, United States
Duration: 3 Mar 20145 Mar 2014

Publication series

NameProceedings - International Symposium on Quality Electronic Design, ISQED
ISSN (Print)1948-3287
ISSN (Electronic)1948-3295

Conference

Conference15th International Symposium on Quality Electronic Design, ISQED 2014
Country/TerritoryUnited States
CitySanta Clara, CA
Period3/03/145/03/14

Keywords

  • CMOS
  • Mobile memory interface
  • Pulse-amplitude modulation (PAM)
  • Through-silicon-via (TSV)
  • Transceiver

Fingerprint

Dive into the research topics of 'An energy-efficient mobile PAM memory interface for future 3D stacked mobile DRAMs'. Together they form a unique fingerprint.

Cite this