High-Speed CMOS 10-Bit Bus Switch with Flow-Thru Pinout

The QS3861 provides a set of ten high-speed CMOS TTL-compatible bus switches. The low ON resistance (5 ohm) of the QS3861 allows inputs to be connected without adding propagation delay and without generating additional ground bounce noise. The Bus Enable (BE) signal turns the switches on. The QS3861 operates at -40C to +85C.

Features

  • Enhanced N channel FET with no inherent diode to Vcc
  • 5 ohm bidirectional switches connect inputs to outputs
  • Zero propagation delay, zero ground bounce
  • Undershoot clamp diodes on all switch and control inputs
  • Available in 24 pin QSOP and TSSOP packages

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
QS3861PAG Active PGG24 TSSOP 24 I Yes Tube Availability
QS3861PAG8 Active PGG24 TSSOP 24 I Yes Reel Availability
QS3861QG Active PCG24 QSOP 24 I Yes Tube Availability
QS3861QG8 Active PCG24 QSOP 24 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
PDN# L_05_01: Obsolescence Notice - ALL PDF 130 KB Jul 21, 2005
QS3861 Datasheet - Datasheet PDF 213 KB Jan 27, 2013
User Guides & Manuals
FCT Bus Switch Cross Reference Guide - Guide PDF 568 KB Aug 9, 2016
Application Notes & White Papers
AN-11: 5V and 3V Conversion with Zero Delay - Application Note PDF 346 KB Feb 5, 2014
AN-17: Peripheral Isolation in Notebook Computers - Application Note PDF 68 KB May 31, 1996
AN-19: Space Reduction Via Placement - Application Note PDF 41 KB May 31, 1996
AN-13: Converting TTL to Hot Plug - Application Note PDF 85 KB May 31, 1996
AN-09: CMOS Bus Switches Provide 0 Delay - Application Note PDF 121 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# : A1511-01(R1) Add SPEL India as Alternate Assembly Location - Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location - Product Change Notice PDF 544 KB Nov 12, 2015
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-0504-02R2: Assembly Transfer IDT-Manila to OSE-Ph - Product Change Notice PDF 38 KB Aug 3, 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 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
PCN# G9911-05, To qualify low alpha mold compound. - Product Change Notice PDF 44 KB Nov 17, 1999

Software & Tools

Title Other Languages Type Format File Size Date
QS3861 IBIS Model - Model - IBIS ZIP 4 KB May 22, 2002
QS3861 Hspice - Model - HSPICE ZIP 6 KB Jan 22, 2003