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QS34X245 - Block Diagram

QS34X245

High-Speed CMOS QuickSwitch 32-Bit Multiwidth Bus Switch

The QS34X245 provides a set of 32 high-speed CMOS compatible bus switches in a flow-through pinout. The low ON-resistance of the QS34X245 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. This device is ideally suited for 32/64 bit applications where board space is at a premium. The QS34X245 operates at -40C to +85C.

Features

  • Enhanced N channel FET with no inherent diode to Vcc
  • Bidirectional switches connect inputs to outputs
  • Zero propagation delay, zero ground bounce
  • QS34X245 is 32-bit version of QS3245
  • Flow-through pinout for easy layout
  • Undershoot clamp diodes on all switch and control inputs
  • TTL-compatible control inputs
  • Available in 80-pin MilliPaQ™ package

Product Specification

FunctionPkg. CodeTemp. RangeBus Width (bits)Core Voltage (V)Output TypeOn Resistance (Ω)Speed Grade
245 SwitchDMG80-40 to 85°C3255Standard

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
QS34X245Q3GActiveDMG80QVSOP80IYesTubeCheck Availability
QS34X245Q3G8ActiveDMG80QVSOP80IYesReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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QS34X245 Datasheet Datasheet PDF 219 KB Aug 15, 2012
Apps Notes & White Papers
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AN-11: 5V and 3V Conversion with Zero Delay Application Note PDF 346 KB Feb 5, 2014
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Quickswitch Basics Application Note PDF 83 KB Jul 6, 2005
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AN-13: Converting TTL to Hot Plug Application Note PDF 85 KB Jun 1, 1996
show all (8)
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AN-20: Board Assembly for 0.4mm Pin Surface Mounts Application Note PDF 62 KB Jun 1, 1996
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AN-19: Space Reduction Via Placement Application Note PDF 41 KB Jun 1, 1996
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AN-09: CMOS Bus Switches Provide 0 Delay Application Note PDF 121 KB Jun 1, 1996
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AN-17: Peripheral Isolation in Notebook Computers Application Note PDF 68 KB Jun 1, 1996
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TN-07: Analysis of QuickSwitch Behavior Application Note PDF 102 KB Jun 1, 1996
PCNs & PDNs
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PCN# : A1301-01 Gold to Copper Wire Product Change Notice PDF 99 KB Jan 28, 2013
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PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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PCN# : A-0605-04 UNISEM-Malaysia as Alternate Assembly Facility for QVSOP Packages Product Change Notice PDF 102 KB May 24, 2006
show all (15)
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PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB Sep 2, 2005
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PCN# A-0504-02R2: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 38 KB Aug 4, 2005
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PCN#A-0504-02R1: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 16 KB Jul 22, 2005
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PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 KB Apr 29, 2005
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PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 29, 2005
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PCN#:A-0312-02, new die attach material - 8290 Product Change Notice PDF 116 KB Dec 3, 2003
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PCN#:A-0312-01, new mold compound material - G600 Product Change Notice PDF 109 KB Dec 3, 2003
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PCN Addendum # L0203-10R1 Fab 2 to Fab 4 Transfer Product Change Notice PDF 110 KB Jan 13, 2003
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PCN# L0203-10 Fab Transfer from Fab 2 to Fab 4 Product Change Notice PDF 27 KB Apr 15, 2002
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PCN# G0202-01, Alternate assembly facility Product Change Notice PDF 16 KB Feb 8, 2002
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PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
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PCN# G0005-01, Laser Top Mark Product Change Notice PDF 24 KB May 10, 2000

Software & Tools

Title Type Format File Size Datesort icon
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QS34x245 Hspice Model Model - HSPICE ZIP 6 KB Sep 1, 2000
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QS34X245 IBIS Model Model - IBIS ZIP 5 KB Jan 3, 2001