TSI148-133CL

Specialized Overview

The TSI148-133CL is a specialized VME to PCI-X bridge integrated circuit manufactured by Renesas Electronics. It serves as a system interconnect component compliant with 2eSST and VME64 Extension standards, enabling high-performance data transfer between VMEbus architectures and PCI/PCI-X peripherals. The device supports local bus interfaces for 66 MHz PCI or 133 MHz PCI-X processors. Key electrical parameters include PCI-X operation frequencies ranging from 50 to 133 MHz and PCI frequencies from 33 to 66 MHz. It features two DMA controllers supporting direct and linked-list modes, interrupt handling capabilities, and IEEE 1149.1 JTAG support. The component is housed in a PBGA-456 package.

Specialized Feature Summary

• Fully compliant with 2eSST and VME64 Extension standards for enhanced protocol performance while maintaining legacy support
• Provides full VME bus system controller functionality with programmable 64-bit interface
• Integrates dual DMA controllers capable of operating in both direct and linked-list modes

Specialized Applications

• VMEbus system interconnect design requiring high bandwidth
• Integration of PCI-X processors and peripherals into VME architectures
• Systems utilizing 2eSST protocols alongside legacy VME boards

Specialized Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the specific variant may not meet current environmental standards. Check humidity sensitivity handling procedures prior to assembly. Validate that the PBGA-456 package matches the target PCB footprint. Ensure supply chain sources provide valid traceability documentation for critical applications.

Specialized Selection Notes

Select this component when designing systems requiring a bridge between VME64 backplanes and PCI-X front-end processors. Consider the 133 MHz PCI-X capability for maximum throughput needs. Evaluate the need for 2eSST protocol support versus legacy VME compatibility. Assess thermal management requirements for the PBGA-456 package. Verify that the available DMA channels and interrupt structures align with system architecture constraints.

Specialized Part Context

The TSI148-133CL belongs to the TSI148 series of high-performance VMEbus interconnect products originally developed by IDT and later acquired by Renesas Electronics. This specific suffix indicates the 133 MHz PCI-X operational variant. The series represents an evolution in VME system connectivity, focusing on bridging older VME infrastructure with modern PCI-X peripheral technologies. It is part of a discontinued product line within Renesas's interface IC portfolio.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the TSI148-133CL is listed as an End-of-Life (EOL) product, alternative solutions require manual evaluation of functional equivalents. Designers should consult official Renesas technical resources for potential cross-reference options or consider redesigning with currently active bridge controllers.