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Tsi148 - Block Diagram


VME to PCI-X Bridge

Alternative Products
NOTICE - The following device(s) are recommended alternatives:
function is similar

The TSI148 is the latest-generation component in IDT’s industry-leading, high-performance VMEbus system interconnect product family. The device is fully compliant with the 2eSST and VME64 Extension standards which allow designers to take advantage of the higher performance VME protocols, while preserving existing investment in VME boards that implement legacy protocols. TheTSI148 increases a system’s usable bus bandwidth through a local bus interface designed for the PCI/X processors and peripherals that support either a 66 MHz PCI bus or a 133 MHz PCI-X bus interface.


  • VME interface supports 2eSST as well as legacy protocols
  • Full VME bus system controller functionality
  • Fully compliant, programmable 64-bit PCI or PCI-X bus interface
  • PCI-X operation from 50-133 MHz, PCI from 33 to 66 MHz
  • Two DMA controllers with direct and linked-list modes
  • Interrupt and interrupt handling capability
  • IEEE 1149.1 JTAG support
  • Commercial and industrial temperature variants

Product Specification

VME BusPCI BusTemp. RangePower Consumption Max (W)Pkg. CodePkg. Dimensions
VME64, 2eVME, 2eSST66MHz/64-bit PCI, 133MHz/64-bit PCI-X-40 to 85°C, 0 to 70°C1.8BBR456, BB45627 x 27 x 2.65

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
TSI148-133CLObsoleteBB456PBGA456CNoTrayCheck Availability
TSI148-133CLYObsoleteBBR456PBGA456CYesTrayCheck Availability
TSI148-133ILObsoleteBB456PBGA456INoTrayCheck Availability
TSI148-133ILYObsoleteBBR456PBGA456IYesTrayCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
User Guides & Manuals
Tsi148 User Manual Manual PDF 1.58 MB Apr 16, 2012
Apps Notes & White Papers
Tsi148/Universe II Differences Application Note Application Note PDF 77 KB Sep 26, 2014
Tsi148 VMEbus Test and Set Explanation Application Note Application Note PDF 50 KB Sep 6, 2012
Tsi148 Initialization Application Note PDF 79 KB Oct 14, 2009
show all (4)
Interfacing the Tsi384 and Tsi148: Clocking and Reset Considerations Application Note PDF 107 KB Sep 22, 2009
PDN# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB Sep 8, 2014
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 4, 2014
PCN# : A1001-01 MOLD COMPOUND, DIE ATTACH AND MARK METHOD CHANGE ON TSI148-133CL & TSI148-133IL Product Change Notice PDF 123 KB Apr 1, 2010
Tsi148 Device Errata Device Errata PDF 72 KB Oct 14, 2009
Tsi148 Pinlist Misc TXT 12 KB Sep 3, 2009
Tsi148 VME to PCI/X Bridge Product Brief PDF 79 KB Sep 2, 2009

Software & Tools

Title Type Format File Size Datesort icon
Tsi148 BSDL File Model - BSDL ZIP 12 KB Sep 2, 2009
Tsi148 IBIS Model Model - IBIS ZIP 131 KB Aug 31, 2009