PCI2050BIZHK

Specialized Overview

The PCI2050BIZHK is a PCI-to-PCI bridge integrated circuit manufactured by Texas Instruments. It provides a high-performance connection path between two Peripheral Component Interconnect (PCI) buses, supporting a maximum bus frequency of 66 MHz and 32-bit data width. The device operates within an industrial temperature range of -40°C to +85°C and utilizes a 257-terminal MicroStar BGA package. It features 3.3V core logic with universal PCI interface compatibility for both 3.3V and 5V signaling environments.

Specialized Feature Summary

• Supports simultaneous bridging transactions on two independent 32-bit, 66 MHz PCI bus traffic paths.
• Includes internal two-level arbitration for up to nine secondary bus masters with external arbiter support.
• Enables CompactPCI hot-plug extension functionality for versatile card designs.
• Features pipeline architecture for burst data transfers to maximize bidirectional data throughput.

Specialized Applications

• Creating hierarchical bus structures to overcome electrical load limits in PCI systems.
• Designing multifunctional CompactPCI cards requiring hot-plug compliance.
• Connecting peripheral devices across separate PCI bus segments in industrial computing.

Specialized Procurement Notes

Verify the specific suffix 'ZHK' against official Texas Instruments documentation to confirm pinout, packaging, and environmental ratings. Ensure the component matches the required 257-terminal MicroStar BGA form factor and industrial temperature specifications before integration into the design.

Specialized Selection Notes

Select this component when a PCI-to-PCI bridge is required for systems operating at 66 MHz with 32-bit data paths. Consider the 257-terminal BGA package constraints and the need for internal arbitration capabilities for multiple secondary bus masters during system architecture planning.

Specialized Part Context

The PCI2050B series serves as a bridge solution compliant with PCI Local Bus and PCI-to-PCI Bridge specifications. It addresses the limitation of ten devices per PCI bus by enabling hierarchical bus topologies. The device supports power management interfaces and offers configurable VGA/palette memory decoding options for specialized applications.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers for the specific PCI2050BIZHK variant are not available in verified sources. Review the broader PCI2050B family datasheet for potential functional equivalents such as the PCI2050A or Intel 21150 series, ensuring compatibility with the 257-terminal BGA package and 66 MHz operational requirements.