PCI2050BZWT

Specialized Overview

The PCI2050BZWT is a PCI-to-PCI bridge integrated circuit manufactured by Texas Instruments. It facilitates high-performance connections between two Peripheral Component Interconnect (PCI) buses, supporting a maximum bus frequency of 66 MHz and 32-bit data bus width. The device operates within an extended temperature range of -40°C to +85°C and utilizes a 257-terminal NFBGA package. It supports both 3.3V and 5V PCI signal environments with a 3.3V kernel logic supply. Key electrical parameters include independent read/write buffers for each direction and support for burst mode transfers to maximize data throughput.

Specialized Feature Summary

• Supports simultaneous bridging transactions on two independent 32-bit 66MHz PCI buses
• Features internal two-level arbitration for up to nine secondary bus masters
• Enables CompactPCI hot-plug extension capabilities for versatile card designs
• Provides configurable architecture compliant with PCI Local Bus Specification

Specialized Applications

• Creating hierarchical bus structures to overcome electrical load limitations
• Designing CompactPCI cards requiring hot-plug functionality
• Connecting peripheral devices across separate PCI bus segments

Specialized Procurement Notes

Verify the specific suffix ZWT corresponds to the 257-terminal NFBGA package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official datasheets or manufacturer documentation before integration. Ensure compatibility with 3.3V and 5V PCI signal environments as specified in the technical reference manual.

Specialized Selection Notes

Select this component when expanding PCI bus capacity beyond the standard ten-device limit per segment. Choose the PCI2050BZWT for applications requiring predictable latency and support for write coalescing. Verify that the 257-terminal BGA package fits the board space constraints and thermal requirements of the target design.

Specialized Part Context

The PCI2050B series serves as a bridge solution for connecting multiple PCI buses. The ZWT variant specifically denotes the NFBGA packaging option. This family addresses the need for increased I/O connectivity and bandwidth management in complex system architectures requiring isolated bus domains.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative PCI-to-PCI bridges from other manufacturers only if they meet identical electrical specifications and pinout compatibility.