PCI2050ZHK

Specialized Overview

The Texas Instruments PCI2050ZHK is a PCI-to-PCI bridge compliant with the PCI Local Bus Specification and PCI-to-PCI Bridge Specification 1.1. It provides a high-performance connection path between two 32-bit, 33-MHz PCI buses, allowing concurrent bridged transactions. The device features independent read and write buffers, burst-mode transfers with pipeline architecture, and internal two-tier arbitration for up to nine secondary bus masters. It supports CompactPCI hot-swap functionality, PCI Power Management 1.0/1.1, and includes ten secondary PCI clock outputs. The component operates at 3.3 V core logic with universal PCI interfaces compatible with both 3.3-V and 5-V signaling environments.

Specialized Feature Summary

• Supports concurrent bridged transactions between two independent 32-bit PCI buses
• Includes internal two-tier arbitration for up to nine secondary bus masters
• Provides CompactPCI hot-swap extended PCI capability
• Features independent read and write buffers for each direction

Specialized Applications

• Multifunction CompactPCI cards
• Adapting single-function cards to hot-swap compliance
• Creating hierarchical buses to overcome electrical loading limits

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure compatibility with system voltage requirements and interface standards before integration. Cross-reference the datasheet revision date to validate technical specifications.

Specialized Selection Notes

Select this component when expanding PCI bus capacity beyond standard electrical loading limits or requiring CompactPCI hot-swap support. Consider the 209-terminal MicroStar BGA package constraints during PCB layout. Evaluate power management needs against the device's compliance with PCI Power Management Interface Specification.

Specialized Part Context

The PCI2050ZHK belongs to the PCI2050 family of PCI-to-PCI bridges manufactured by Texas Instruments. This series is designed to provide high-performance connectivity between PCI buses while supporting advanced features like hot-swap and power management. The ZHK suffix specifically denotes the 209-terminal MicroStar BGA package variant.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.