PI7C9X112SLFDE

Specialized Overview

The PI7C9X112SL is a PCI Express-to-PCI bridge manufactured by Diodes Incorporated. It provides a single-lane PCI Express interface and a 32-bit/66 MHz PCI interface. The device supports a maximum payload size of 512 bytes, includes an 8 KB buffer with 2 KB for reads and 2 KB for writes per port, and operates within an extended commercial temperature range of 0°C to +85°C. It features four dedicated bidirectional GPIO pins, masquerade support for customizable identification fields, and compliance with the PCI Express Base Specification.

Specialized Feature Summary

• Supports fully reversible bridging between PCI Express and PCI domains
• Includes integrated 8 KB buffering for data transactions
• Provides configurable GPIO pins and masquerade ID capabilities

Specialized Applications

• Converting PCI Express host systems to legacy PCI peripherals
• Industrial control systems requiring protocol translation
• Hardware adapters for legacy expansion cards in modern platforms

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and tape-and-reel specifications. Confirm that the component meets all applicable environmental and safety standards required for the intended deployment environment before finalizing procurement orders.

Specialized Selection Notes

Select this component when a design requires a direct bridge between a PCI Express root complex and a standard 32-bit PCI bus. Ensure the system architecture accommodates the specified voltage levels and pin configurations. Evaluate the need for GPIO functionality and masquerade support to determine if this specific feature set aligns with the project requirements.

Specialized Part Context

This component belongs to the PI7C9X series of interface ICs produced by Diodes Incorporated. It serves as a specialized bridge solution designed to facilitate communication between high-speed serial PCI Express links and parallel PCI buses. The device is part of a broader portfolio of interface controllers aimed at extending the lifespan of legacy hardware in modern computing environments.

Specialized Replacement Considerations

Consult the manufacturer's official cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence with other bridge controllers without verifying pin compatibility and register mapping.