TSI148-133CLY

Specialized Overview

The TSI148-133CLY is a VME to PCI-X bridge integrated circuit manufactured by Renesas Electronics. It serves as a system interconnect component compliant with the 2eSST and VME64 Extension standards, enabling high-performance VME protocols while supporting legacy boards. The device features a fully compliant, programmable 64-bit PCI or PCI-X bus interface. It supports PCI-X operation frequencies ranging from 50 MHz to 133 MHz and PCI operation from 33 MHz to 66 MHz. The component includes two DMA controllers capable of direct and linked-list modes, interrupt handling capabilities, and IEEE 1149.1 JTAG support.

Specialized Feature Summary

• Supports VME interface including 2eSST and legacy protocols
• Provides full VME bus system controller functionality
• Features fully compliant, programmable 64-bit PCI or PCI-X bus interface

Specialized Applications

• VMEbus system interconnect design
• Integration of PCI/X processors and peripherals into VME systems
• Upgrading existing VME boards to higher performance protocols

Specialized Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as indicated in official documentation. Check for moisture sensitivity handling instructions prior to assembly. Ensure compatibility with target VME and PCI-X system specifications before procurement.

Specialized Selection Notes

Select this component when designing systems requiring a bridge between VME64/2eSST backplanes and PCI-X local buses. Consider the 133 MHz PCI-X capability for high-bandwidth applications. Verify temperature range suitability for commercial or industrial environments. Evaluate DMA controller needs for data transfer efficiency.

Specialized Part Context

The TSI148 series represents a high-performance generation of VMEbus interconnect components originally developed by IDT and later acquired by Renesas. This specific model extends the family's capabilities to support faster PCI-X interfaces, addressing the need for increased bandwidth in modern embedded systems while maintaining backward compatibility with established VME infrastructure.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Functionally similar alternatives such as the CA91C142D exist but serve different protocol standards (VME to PCI rather than PCI-X). Direct replacement verification requires consulting current manufacturer obsolescence notices.