TSI148-133IL

Specialized Overview

The TSI148-133IL is a specialized interface bridge manufactured by Renesas Electronics, designed to connect VMEbus systems with PCI/PCI-X processors. It supports VME64 and 2eSST standards while maintaining compatibility with legacy protocols. The device features a fully compliant, programmable 64-bit PCI or PCI-X bus interface. It operates at PCI frequencies from 33 to 66 MHz and PCI-X frequencies from 50 to 133 MHz. The component includes two DMA controllers supporting direct and linked-list modes, interrupt handling capabilities, and IEEE 1149.1 JTAG support. It is housed in a PBGA-456 package.

Specialized Feature Summary

• Supports VME64 Extension and 2eSST standards alongside legacy protocol preservation
• Provides full VME bus system controller functionality
• Includes dual DMA controllers with direct and linked-list operation modes
• Integrates IEEE 1149.1 JTAG support for boundary scan testing

Specialized Applications

• VMEbus system interconnect design
• Integration of PCI/X processors with VME peripherals
• High-performance embedded computing systems requiring VME-to-PCI bridging

Specialized Procurement Notes

Verify the current lifecycle status as the component is listed as obsolete. Confirm availability through authorized distributors or surplus channels, noting that moisture sensitivity requires proper handling. Ensure the specific suffix matches the required frequency and temperature grade before procurement.

Specialized Selection Notes

Select this component when a VME-based system requires high-bandwidth connectivity to PCI-X processors operating up to 133 MHz. It is suitable for designs needing full VME controller functionality and DMA support. Consider the PBGA-456 package constraints and industrial/commercial temperature variants available within the TSI148 family.

Specialized Part Context

The TSI148 belongs to IDT’s (now Renesas) high-performance VMEbus system interconnect product family. It serves as a bridge between VME backplanes and modern PCI/PCI-X local buses. The series allows designers to leverage higher performance VME protocols while preserving investments in legacy VME boards.

Specialized Replacement Considerations

Check for other TSI148 variants with different speed grades or temperature ranges. Verify if newer Renesas bridge solutions offer backward compatibility with VME64 and PCI-X interfaces.