The 89KTPES5T5 Evaluation Board (also referred to as EB8T5A*) provides an evaluation platform for the 89HPES8T5A switch. It is also a cost effective way to add a PCIe downstream port (x1) to an existing system with a limited number of PCIe downstream ports. The 89KTPES5T5 eval board is designed to function as an add-on card to be plugged into a x4 PCIe slot available on a motherboard hosting an appropriate root complex, microprocessor(s), and four downstream ports. The 89KTPES5T5 is a vehicle to test and evaluate the functionality of the PES8T5A chip.

Customers can use this board to get a headstart on software development prior to the arrival of their own hardware. The 89KTPES5T5 is also used by IDT to reproduce system-level hardware or software issues reported by customers. 
*Note: References to the 89HPES8T5A also apply to the 89HPES6T5 and 89HPES5T5 unless otherwise indicated.


  • Hardware
    • PCIe 5 port switch
    • Upstream, Downstream Port
    • Numerous user selectable configurations set using onboard jumpers and DIP-switches
    • Vaux Support
    • SMBUS Slave Interface (4 pin header)
    • SMBUS Master Interface connected to the Serial EEPROMs through I/O expander
    • “Attention” button for each downstream port to initiate a hot swap event on each port
    • Four pin connector for optional external power supply
    • Push button for Warm Reset
    • Several LEDs to display status, reset, power, “Attention”, etc.
    • One 14-pin JTAG header
  • Software
    • Installation programs
    • GUI based application for Windows and Linux

Product Options

Part Number Part Status Buy Sample


Title language Type Format File Size Date
User Guides & Manuals
PCI Express Browser Rev 5.0.2 User Manual Manual PDF 2.56 MB
EB8T5A Eval Board User Manual - Fab # 18-636-002 Manual - Eval Board PDF 3.00 MB
89EBPES8T5A Eval Board OrCAD Schematics - Fab # 18-636-001 Schematic ZIP 917 KB


Title language Type Format File Size Date
PCI Express Browser Rev 5.0.2 Windows Installation - Digitally Signed Software Tool ZIP 104.57 MB
PCI Express Browser Rev 5.0.2 Windows Installation Software Tool ZIP 54.45 MB
PCI Express Browser Rev 4.9 Linux Installation Software Tool ZIP 48.85 MB