TSI384-133IL

Specialized Overview

The TSI384-133IL is a PCI Express to PCI-X bridge manufactured by Renesas Electronics Corporation. It provides a high-performance interface from a four-lane PCI Express link to a 64-bit PCI-X bus operating at 133 MHz. The device supports transparent, opaque, and non-transparent addressing modes for system design flexibility. It operates on a single 1.2V power supply and functions within a temperature range of -40°C to +85°C. The component is housed in a 256-pin PBGA package measuring 17x17 mm. This specific part number is classified as obsolete.

Specialized Feature Summary

• Supports three distinct addressing modes: transparent, opaque, and non-transparent bridging.
• Provides low-latency data transfer between PCI Express and PCI-X domains.
• Enables integration of legacy PCI-X peripherals with modern PCI Express host systems.

Specialized Applications

• PCI Express to PCI-X forward bridging
• System interconnect solutions requiring mixed-bus architectures

Specialized Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability requires checking secondary market distributors or surplus suppliers. Confirm RoHS compliance status, as the IL suffix indicates lead-free construction but obsolescence may affect current production batches. Validate datasheet revisions before integration into new designs due to discontinuation.

Specialized Selection Notes

Engineers should evaluate this bridge for legacy system maintenance rather than new product development. Consider the transition from IDT branding to Renesas Electronics when sourcing documentation. Verify that the 133 MHz PCI-X speed requirement aligns with peripheral capabilities. Assess the 256-BGA footprint constraints during PCB layout planning.

Specialized Part Context

The TSI384 belongs to the TSI384 family of PCIe-to-PCI/PCI-X bridges. It serves as an upgrade path for systems migrating from PCI-X backplanes to PCI Express architectures. The device maintains compatibility with standard PCI-X signaling while offering the bandwidth advantages of PCI Express lanes.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers must consult official Renesas discontinuation notices or contact authorized distributors for recommended alternative components suitable for PCIe to PCI-X bridging applications.