TSI384-133ILV

The TSI384-133ILV is a PCI Express-to-PCI/PCI-X bridge device manufactured by Renesas (formerly IDT), functioning as a transparent interconnect that translates a PCIe x4 upstream port into a 32/64-bit PCI or PCI-X downstream bus operating at up to 133 MHz. As a member of the Tsi384 family, this bridge provides a low-latency, single-chip solution for extending legacy parallel bus architectures into modern serial-based host systems, with the BGA package enabling compact, high-density routing in embedded designs. The part’s “I” suffix denotes an industrial temperature range, supporting reliable operation in environments from -40°C to +85°C, while the “LV” marking confirms lead-free, RoHS-compliant termination.

Typical applications include industrial single-board computers, real-time control systems, and ruggedized data acquisition platforms where existing PCI/PCI-X peripherals must be preserved during system upgrades. The bridge is also deployed in aerospace and defense avionics, medical imaging subsystems, and test instrumentation that rely on deterministic bus timing and backward compatibility with mature add-in cards. From a procurement standpoint, PCIe-to-PCI bridge devices occupy a narrowing niche as native PCI support fades from many processor platforms, elevating long-term obsolescence risk. Authentic industrial-grade units with verified date codes are essential to avoid counterfeit or rebadged commercial parts; sourcing through authorized distribution channels helps maintain traceability and ensures firmware compatibility across production runs.