Provides high-performance I/O connectivity and switching functions between a PCIe upstream port and one transparent and one non-transparent downstream ports. The device also supports peer-to-peer switching between downstream ports.


  • 12 PCIe Gen1 Lanes, 3 Switch Ports
  • Switch architecture optimized for I/O Expansion
  • Supports Nontransparent Bridging
  • 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
89HPES12NT3ZBBCG Active BCG324 CABGA 324 C Yes Tray
89HPES12NT3ZBBCG8 Active BCG324 CABGA 324 C Yes Reel
89HPES12NT3ZBBCGI Active BCG324 CABGA 324 I Yes Tray
89HPES12NT3ZBBCGI8 Active BCG324 CABGA 324 I Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
89PES12NT3 Data Sheet Datasheet PDF 754 KB
89PES12NT3 Device Errata (Revision ZB) Errata PDF 105 KB
User Guides & Manuals
89PES12NT3 Device User Manual Manual PDF 2.99 MB
Application Notes & White Papers
AN-510 Use of Non-transpared Bridging with IDT PCI Express NTB Gen1 Switches Application Note PDF 348 KB
AN-705 Linux Device Driver Architecture for PES24NT3/12NT3/16NT2/8NT2 Application Note PDF 390 KB
AN-701, Hot-Swap in PCIe Based Systems Application Note PDF 351 KB
AN-533, PES12N3/PES12NT3 PCIe Switch Performance with External Cabling Application Note PDF 1.11 MB
PDN# : CQ-17-02R1 Quarterly Market Declined PDN (revision1) Product Discontinuation Notice PDF 647 KB
PDN# : CQ-17-02 Quarterly Market Declined PDN Product Discontinuation Notice PDF 898 KB
89PES12NT3 BSDL (Revision ZB) Model - BSDL BSDL 12 KB
89PES12NT3 BSDL (Revision ZA) Model - BSDL BSDL 10 KB
89PES12NT3 Product Brief Product Brief PDF 57 KB

Boards & Kits