PCI2050BPDV

Specialized Overview

The PCI2050BPDV is a PCI-to-PCI bridge controller manufactured by Texas Instruments, designed to connect two Peripheral Component Interconnect (PCI) buses. It supports data transfer rates up to 66 MHz on both the primary and secondary 32-bit buses. The device operates with a 3.3 V core logic voltage while maintaining compatibility with both 3.3 V and 5 V PCI signaling environments. It features internal two-level arbitration for up to nine secondary bus masters and includes ten secondary PCI clock outputs. The component utilizes advanced submicron CMOS technology for low power consumption and is housed in a 208-lead Plastic Dual In-line Package (PDV).

Specialized Feature Summary

• Supports simultaneous bridging transactions between two independent 32-bit PCI bus traffic paths.
• Provides internal two-level arbitration for multiple secondary bus masters with external arbiter support.
• Enables CompactPCI hot-pluggable expansion capabilities for system flexibility.

Specialized Applications

• Connecting multiple PCI buses to overcome electrical load limitations of single bus architectures.
• Implementing CompactPCI systems requiring hot-pluggable functionality.
• Creating hierarchical bus structures in high-performance computing environments.

Specialized Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific package variant matches design requirements. Check for end-of-life status as indicated by some sources. Ensure compliance with RoHS directives if required by the target application. Validate datasheet revisions against current engineering specifications.

Specialized Selection Notes

Select this component when interfacing legacy PCI peripherals with modern systems requiring bus isolation. Consider the 208-lead PDV package constraints during PCB layout. Evaluate thermal management needs due to CMOS technology characteristics. Verify voltage level compatibility between connected bus segments. Assess arbitration complexity if more than nine secondary masters are present.

Specialized Part Context

The PCI2050B series represents Texas Instruments' solution for PCI bus extension. The PDV suffix denotes the specific 208-lead plastic dual in-line package format. This variant is part of a broader family including BGA options like the PCI2050BIZWT. The device adheres to PCI Local Bus Specification and PCI-to-PCI Bridge Specification standards.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineering teams should consult Texas Instruments directly for qualified alternatives or obsolescence management strategies. Cross-referencing pinouts and electrical characteristics is essential before considering any non-official replacements.