Skip to main content
QS3861 - Block Diagram

QS3861

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 Specification

FunctionPkg. CodeTemp. RangeBus Width (bits)Core Voltage (V)Output TypeOn Resistance (Ω)Speed Grade
Bus Switch (Flow-through)PCG24, PGG24-40 to 85°C1055Standard

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
QS3861PAGActivePGG24TSSOP24IYesTubeCheck Availability
QS3861PAG8ActivePGG24TSSOP24IYesReelCheck Availability
QS3861QGActivePCG24QSOP24IYesTubeCheck Availability
QS3861QG8ActivePCG24QSOP24IYesReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
no-lock
QS3861 Datasheet Datasheet PDF 213 KB Jan 28, 2013
User Guides & Manuals
no-lock
FCT Bus Switch Cross Reference Guide Guide PDF 568 KB Aug 10, 2016
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-20: Board Assembly for 0.4mm Pin Surface Mounts Application Note PDF 62 KB Jun 1, 1996
no-lock
AN-19: Space Reduction Via Placement Application Note PDF 41 KB Jun 1, 1996
no-lock
AN-09: CMOS Bus Switches Provide 0 Delay Application Note PDF 121 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
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# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
show all (19)
no-lock
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
no-lock
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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-0504-02R2: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 38 KB Aug 4, 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
PDN# L_05_01: Obsolecence Notice Product Delete Notice PDF 133 KB Jul 21, 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-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 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 Addendum # L0203-10R1 Fab 2 to Fab 4 Transfer Product Change Notice PDF 110 KB Jan 13, 2003
no-lock
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 16, 2002
no-lock
PCN# L0203-10 Fab Transfer from Fab 2 to Fab 4 Product Change Notice PDF 27 KB Apr 15, 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
no-lock
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 18, 1999

Software & Tools

Title Type Format File Size Datesort icon
no-lock
QS3861 Hspice Model - HSPICE ZIP 6 KB Jan 23, 2003
no-lock
QS3861 IBIS Model Model - IBIS ZIP 4 KB May 23, 2002