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

The QS3125 provides a set of four high-speed low resistance CMOS switches connecting inputs to outputs without propagation delay and without generating additional ground bounce noise. The QS3125 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 QS3125 can also be used for analog switching applications such as video. The QS3125 operates at -40C to +85C.

Features

  • Enhanced N channel FET with no inherent diode to Vcc
  • Pin compatible with the 74'125 function
  • Undershoot clamp diodes on all switch and control inputs
  • 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 Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
QS3125QG Active PCG16 QSOP 16 I Yes Tube Availability
QS3125QG8 Active PCG16 QSOP 16 I Yes Reel Availability
QS3125S1G Active DCG14 SOIC 14 I Yes Tube Availability
QS3125S1G8 Active DCG14 SOIC 14 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
QS3125 Datasheet Datasheet PDF 211 KB Feb 7, 2011
Application Notes & White Papers
AN-11: 5V and 3V Conversion with Zero Delay Application Note PDF 346 KB Feb 5, 2014
AN-19: Space Reduction Via Placement Application Note PDF 41 KB May 31, 1996
AN-17: Peripheral Isolation in Notebook Computers Application Note PDF 68 KB May 31, 1996
AN-09: CMOS Bus Switches Provide 0 Delay Application Note PDF 121 KB May 31, 1996
AN-13: Converting TTL to Hot Plug Application Note PDF 85 KB May 31, 1996
AN-20: Board Assembly for 0.4mm Pin Surface Mounts Application Note PDF 62 KB May 31, 1996
Quickswitch Basics Application Note PDF 83 KB Jul 5, 2005
TN-07: Analysis of QuickSwitch Behavior Application Note PDF 102 KB May 31, 1996
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 15, 2002
PCN#A-0504-02R1: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 16 KB Jul 21, 2005
PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 KB Apr 28, 2005
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 13, 2012
PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB Sep 1, 2005
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 10, 2001
PCN# G0005-01, Laser Top Mark Product Change Notice PDF 24 KB May 9, 2000
PCN#:A-0401-01, new m/c G600 & 8290 d/a material Product Change Notice PDF 196 KB Jan 18, 2004
PCN#:A-0312-02, new die attach material - 8290 Product Change Notice PDF 116 KB Dec 2, 2003
PCN#:A-0312-01, new mold compound material - G600 Product Change Notice PDF 109 KB Dec 2, 2003
PCN Addendum # L0203-10R1 Fab 2 to Fab 4 Transfer Product Change Notice PDF 110 KB Jan 12, 2003
PCN# L0203-10 Fab Transfer from Fab 2 to Fab 4 Product Change Notice PDF 27 KB Apr 14, 2002
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 28, 2005

Software & Tools

Title Other Languages Type Format File Size Date
QS3125 IBIS Model Model - IBIS ZIP 4 KB Jan 2, 2001
QS3125 Hspice Model Model - HSPICE ZIP 6 KB Aug 31, 2000