PCI2050BPDVG4

Specialized Overview

The PCI2050BPDVG4 is a PCI-to-PCI bridge controller manufactured by Texas Instruments. It connects two 32-bit, 66-MHz PCI buses, enabling high-performance data transfer between peripheral devices. The device supports burst mode transfers and write coalescing to maximize throughput. It features internal arbitration for up to nine secondary bus masters and includes CompactPCI hot-plug capabilities. The component operates with a 3.3V kernel logic and is compatible with both 3.3V and 5V PCI signal environments. It is housed in a 208-lead PDV package.

Specialized Feature Summary

• Supports simultaneous bridging transactions across two independent 32-bit PCI bus paths.
• Includes internal two-level arbitration for multiple secondary bus masters.
• Enables CompactPCI hot-plug expansion functionality for system flexibility.
• Provides configurable VGA/palette memory and I/O decoding options.

Specialized Applications

• High-performance computing systems requiring hierarchical bus structures.
• CompactPCI cards needing hot-plug support.
• Industrial control systems with multiple PCI peripherals.
• Server architectures expanding PCI slot capacity.

Specialized Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the package type matches the required PCB footprint. Check current lifecycle status as older bridge components may be subject to discontinuation or limited availability from original manufacturers.

Specialized Selection Notes

Select this component when interfacing two standard PCI buses is required rather than PCIe. Ensure the design accommodates the 208-lead PDV package size. Verify that the system voltage levels align with the 3.3V/5V compatibility specifications. Consider thermal management requirements for the specific operating environment.

Specialized Part Context

This part belongs to the Texas Instruments PCI2050 family of bridge controllers. It serves as an upgrade or variant within the legacy PCI interface portfolio. The device addresses the need for increased connectivity beyond the electrical load limits of a single PCI bus. It complements other TI interface solutions for complex system architectures.

Specialized Replacement Considerations

Direct replacements include the PCI2050B without the G4 suffix if lead-free compliance is not strictly enforced. Other PCI-to-PCI bridges from different manufacturers may require significant schematic and firmware modifications due to differing register maps and pinouts.