Gunning transceiver logic
In this article, we will explore the fascinating world of Gunning transceiver logic and its implications on modern society. From its origins to its impact today, Gunning transceiver logic has been the subject of debate, discussion and constant interest. Over the years, Gunning transceiver logic has proven its relevance in various fields, from politics to science to popular culture. Through this comprehensive analysis, we will seek to better understand the importance of Gunning transceiver logic in today's world and how it has shaped the way we think, act, and relate to the environment around us. Join us on this journey of discovery and reflection about Gunning transceiver logic.
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (March 2014) |
Gunning transceiver logic (GTL) is a type of logic signaling used to drive electronic backplane buses. It has a voltage swing between 0.4 volts and 1.2 volts — much lower than that used in TTL and CMOS logic — and symmetrical parallel resistive termination. The maximum signaling frequency is specified to be 100 MHz, although some applications use higher frequencies. GTL is defined by JEDEC standard JESD 8-3 (1993) and was invented by William Gunning while working for Xerox at the Palo Alto Research Center.
All Intel front-side buses use GTL. As of 2008, GTL in these FSBs has a maximum frequency of 1.6 GHz.[1] The front-side bus of the Intel Pentium Pro, Pentium II and Pentium III microprocessors uses GTL+ (or GTLP) developed by Fairchild Semiconductor, an upgraded version of GTL which has defined slew rates and higher voltage levels. AGTL+ stands for either assisted Gunning transceiver logic or advanced Gunning transceiver logic. These are GTL signaling derivatives used by Intel microprocessors.
References
- ^ Shimpi, Anand Lal (2008), Intel's Atom Architecture, archived from the original on June 6, 2008
- "GTLP vs. GTL: A Performance Comparison from a System Perspective" (PDF), AN-1070, Fairchild Semiconductor, December 2000, archived from the original (PDF) on 2013-09-22, retrieved 2008-03-18
- "GTL/BTL: A Low-Swing Solution for High-Speed Digital Logic" (PDF), Application Note, Texas Instruments, 1997
- JEDEC Standard JESD8-3A, Gunning Transceiver Logic (GTL) Low-Level, High Speed Interface Standard for Digital Integrated Circuits (PDF), JEDEC, May 2007
- Steve Blozis (January 2001), Texas Instruments GTLP Frequently Asked Questions (PDF), Texas Instruments