Skip to main content
QS3126 - Block Diagram

QS3126

High-Speed CMOS Quadruple Bus Switch with IndiviDual Active High Enables

The QS3126 provides a set of four high-speed CMOS switches connecting inputs to outputs. The low ON resistance of the QS3126 allows inputs to be connected to outputs without propagation delay and without generating additional ground bounce noise. The QS3126 is ideal for signal and control switching since the device adds no noise, ground bounce, propagation delay, or significant power consumption to the system. The QS3126 operates at -40C to +85C

Features

  • Enhanced N channel FET with no inherent diode to Vcc
  • Pin compatible with the 74’126 function
  • Undershoot clamp diodes on all switch and control inputs
  • Active high enabling
  • Hot-swapping, hot-docking
  • Voltage translation (5V to 3.3V)
  • Power conservation
  • Capacitance reduction and isolation (mass storage, work stations)
  • Logic replacement (data processing)
  • Clock gating
  • Bus isolation
  • Available in 16 pin QSOP and 14 pin SOIC packages

Product Specification

FunctionPkg. CodeTemp. RangeBus Width (bits)Core Voltage (V)Output TypeOn Resistance (Ω)Speed Grade
Bus SwitchDCG14, PCG16-40 to 85°C455Standard

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
QS3126QGActivePCG16QSOP16IYesTubeCheck Availability
QS3126QG8ActivePCG16QSOP16IYesReelCheck Availability
QS3126S1GActiveDCG14SOIC14IYesTubeCheck Availability
QS3126S1G8ActiveDCG14SOIC14IYesReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
no-lock
QS3126 Datasheet Datasheet PDF 208 KB Jun 2, 2011
Apps Notes & White Papers
no-lock
AN-11: 5V and 3V Conversion with Zero Delay Application Note PDF 346 KB Feb 5, 2014
no-lock
Quickswitch Basics Application Note PDF 83 KB Jul 6, 2005
no-lock
AN-13: Converting TTL to Hot Plug Application Note PDF 85 KB Jun 1, 1996
show all (8)
no-lock
AN-19: Space Reduction Via Placement Application Note PDF 41 KB Jun 1, 1996
no-lock
AN-20: Board Assembly for 0.4mm Pin Surface Mounts Application Note PDF 62 KB Jun 1, 1996
no-lock
AN-17: Peripheral Isolation in Notebook Computers Application Note PDF 68 KB Jun 1, 1996
no-lock
TN-07: Analysis of QuickSwitch Behavior Application Note PDF 102 KB Jun 1, 1996
no-lock
AN-09: CMOS Bus Switches Provide 0 Delay Application Note PDF 121 KB Jun 1, 1996
PCNs & PDNs
no-lock
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
no-lock
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
no-lock
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
show all (14)
no-lock
PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB Sep 2, 2005
no-lock
PCN#A-0504-02R1: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 16 KB Jul 22, 2005
no-lock
PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 KB Apr 29, 2005
no-lock
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 29, 2005
no-lock
PCN#:A-0401-01, new m/c G600 & 8290 d/a material Product Change Notice PDF 196 KB Jan 19, 2004
no-lock
PCN#:A-0312-02, new die attach material - 8290 Product Change Notice PDF 116 KB Dec 3, 2003
no-lock
PCN#:A-0312-01, new mold compound material - G600 Product Change Notice PDF 109 KB Dec 3, 2003
no-lock
PCN# L0212-01 Fab Site Change to Fab 4 Product Change Notice PDF 50 KB Dec 16, 2002
no-lock
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 16, 2002
no-lock
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
no-lock
PCN# G0005-01, Laser Top Mark Product Change Notice PDF 24 KB May 10, 2000

Software & Tools

Title Type Format File Size Datesort icon
no-lock
QS3126 IBIS Model Model - IBIS ZIP 10 KB Sep 1, 2000