Provides high-performance I/O expansion and switching functions between a PCIe upstream port and three downstream ports or peer-to-peer switching between downstream ports.


  • 16 PCIe Gen2 Lanes, 4 Switch Ports
  • Switch architecture optimized for I/O Expansion
  • Supports root-to-peripheral (upstream-to-downstream) and peer-to-peer (downstream-to-downstream) data transfers
  • Internal buffering and flow control credits optimized for maximum bandwidth and large payloads
  • Low latency, Low power

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
89HPES16T4G2ZABXG Last Time Buy BXG288 SBGA 288 C Yes Tray
89HPES16T4G2ZABXG8 Last Time Buy BXG288 SBGA 288 C Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
89PES16T4G2 Datasheet Datasheet PDF 599 KB Aug 9, 2011
89PES16T4G2 Device Errata (Revision ZB) Errata PDF 21 KB Oct 27, 2009
89PES16T4G2 Device Errata (Revision ZA) Errata PDF 34 KB Oct 27, 2009
User Guides & Manuals
89PES16T4G2 Device User Manual Manual PDF 961 KB Jan 27, 2013
PCI Express Browser Rev 5.0.2 User Manual Manual PDF 2.49 MB Dec 2, 2010
Application Notes & White Papers
AN-548 Thermal Characteristics of IDT'S PES12T3G2 and PES16T4G2 PCI Express® Switches Application Note PDF 312 KB Jan 30, 2009
AN-701, Hot-Swap in PCIe Based Systems Application Note PDF 283 KB Sep 15, 2008
AN-538 Hot-Plug Implementation in IDT PCI Express Switches Application Note PDF 91 KB Nov 15, 2007
PDN# : CQ-18-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 540 KB Mar 19, 2018
PDN# : CQ-16-04 QUARTER MARKET DECLINED PDN Product Discontinuation Notice PDF 560 KB Nov 2, 2016
PCN#: A1309-03 Additional Assembly Sources Product Change Notice PDF 398 KB Oct 20, 2013
PCN# : A1105-04 ADD CRM1076WA AS AN ALTERNATE DIE ATTACH EPOXY Product Change Notice PDF 84 KB Oct 24, 2011
89PES16T4G2 Performance Report Report PDF 98 KB Jun 7, 2009
89PES16T4G2 Product Brief Product Brief PDF 78 KB Nov 20, 2008
89PES16T4G2 OrCAD symbol Misc ZIP 36 KB Nov 20, 2008

Software & Tools

Title Other Languages Type Format File Size Date
89PES16T4G2 BSDL (Revision ZB) Model - BSDL BSDL 13 KB Jun 5, 2016
PCI Express Browser Rev 5.0.2 Linux Installation Software Tool GZ 30.49 MB Nov 17, 2015
PCI Express Browser Rev 5.0.2 Windows Installation - Digitally Signed Software Tool ZIP 104.57 MB Jun 16, 2011
PCI Express Browser Rev 5.0.2 Windows Installation Software Tool ZIP 54.45 MB Dec 2, 2010
PCI Express Browser Rev 4.9 Linux Installation Software Tool ZIP 48.85 MB Jan 18, 2009
89PES16T4G2 BSDL (Revision ZA) Model - BSDL BSDL 14 KB Nov 20, 2008

Evaluation Boards

Part Number Title Sort ascending
89KTPES16T4G2 Evaluation Board SDK for the 89HPES16T4G2