Romanian Journal of Information Science and Technology (ROMJIST)

An open โ€“ access publication

  |  HOME  |   GENERAL INFORMATION  |   ROMJIST ON-LINE  |  KEY INFORMATION FOR AUTHORS  |   COMMITTEES  |  

ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor โ€“ in โ€“ Chief:
Academician Dan Dascalu

Secretariate (office):
Adriana Neagu
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Technical editor
of the on-line version:
Lucian Milea (University POLITEHNICA of Bucharest)

Sponsors:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro
• Association for Generic
and Industrial Technologies (ASTEGI), www.astegi.ro

ROMJIST Volume 22, No. 2, 2019, pp. 158-180, Paper no. 626/2019
 

Anca Mihaela Dragan, Andrei Enache, Alina Negut, Adrian Macarie Tache, Gheorghe Brezeanu
An Improved I/O Pin for Serial Communication Interfaces

ABSTRACT: Modern mid-speed serial communication interfaces are required to operate in a wide range of power supply voltages, while achieving transmission rates in the order of Mbps or tens of Mbps. An important factor in determining the maximum bit rate is the I/O of the interface. An I/O pin with an improved digital push-pull output buffer is designed and implemented in a 0.18ยตm CMOS EEPROM process. The pin acts as an interface between an internal low voltage and an external, higher level voltage. The circuit can operate at power supply voltages from 1.6V to 5.6V and can be used in an I2C UFm interface at 5 Mbps and an SPI interface at 10 Mbps. These performances were achieved through topology changes to a classic digital output buffer.

KEYWORDS: Serial communication interface, wide voltage range, high data rate, I/O pin, digital output buffer, push pull stage

Read full text (pdf)






  |  HOME  |   GENERAL INFORMATION  |   ROMJIST ON-LINE  |  KEY INFORMATION FOR AUTHORS  |   COMMITTEES  |