A design of ultra low power I2C synchronous slave controller with interface voltage level independency in 180 nm CMOS technology

  • Imran Ali
  • , Sung Hun Cho
  • , Dong Gyu Kim
  • , Muhammad Riaz Ur Rehman
  • , Kang Yoon Lee

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

4 Scopus citations

Abstract

In this paper, an ultra low power I2C synchronous slave controller (I2CSSC) is presented for low data rate communication with a master device. An additional level shifter circuit at the SDA data IO and SCL clock input is integrated which makes it independent of the interface voltage levels of the master device. This circuit also isolates the slave device and protects it from high voltage spikes from master. The controller is designed with finite state machine (FSM) model in a synchronous fashion. The design is integrated in a pressure sensor for chip calibration and register configuration and it is fabricated with 180 nm CMOS technology. The I2CSSC occupies a very small area of 5712 μm2 and it requires only 650 gates for its implementation. The current consumption is upto 87 μA from 1.8 V power supply and it needs only 157 μ' power for its full operation. The measurement results verify the functional accuracy and rigorousness of the proposed design with all I2C operating modes.

Original languageEnglish
Title of host publicationProceedings - International SoC Design Conference 2017, ISOCC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages262-263
Number of pages2
ISBN (Electronic)9781538622858
DOIs
StatePublished - 29 May 2018
Event14th International SoC Design Conference, ISOCC 2017 - Seoul, Korea, Republic of
Duration: 5 Nov 20178 Nov 2017

Publication series

NameProceedings - International SoC Design Conference 2017, ISOCC 2017

Conference

Conference14th International SoC Design Conference, ISOCC 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period5/11/178/11/17

Keywords

  • CMOS
  • Communication
  • FSM
  • I2C
  • Level shifter

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