PEX8112-AA66FBI F

Specialized Overview

The PEX8112-AA66FBI F is a PCI Express to PCI bridge controller manufactured by Broadcom Limited, formerly PLX Technology. It implements the ExpressLane architecture to facilitate migration from legacy parallel PCI buses to high-speed serial PCI Express interfaces. The device supports both forward and reverse bridging modes, allowing flexible system design configurations. It features a single-lane PCI Express port connected to a standard PCI bus segment. The component is housed in a lead-free fine-pitch ball grid array package with dimensions of 10 mm x 10 mm and utilizes a 0.65 mm pitch for the 161-ball configuration.

Specialized Feature Summary

• Supports reversible bridging operations between PCI Express and PCI domains
• Integrates internal shared RAM for enhanced data buffering capabilities
• Provides GPIO pins for customizable design flexibility
• Includes comprehensive Power Management Event support across multiple power states

Specialized Applications

• Legacy PCI expansion slot integration into modern PCI Express motherboards
• Industrial control systems requiring backward compatibility with older peripheral cards
• Embedded computing platforms migrating from parallel to serial interconnect standards

Specialized Procurement Notes

Verify the exact suffix designation against official Broadcom documentation to confirm package type and temperature range specifications. Ensure that the lead-free status matches project requirements. Cross-reference the manufacturer part number with current Broadcom product availability lists to confirm active status and obsolescence warnings before finalizing procurement plans.

Specialized Selection Notes

Select this component when a single-lane PCI Express uplink is required to support traditional PCI peripherals. Consider the 161-ball BGA package constraints during PCB layout planning. Evaluate power consumption requirements against the specified core voltage and operational characteristics. Confirm that the industrial temperature range meets environmental operating conditions if deployed in harsh settings.

Specialized Part Context

This device belongs to the ExpressLane family of bridge controllers designed by PLX Technology, which was acquired by Broadcom. The series focuses on enabling seamless transitions between legacy bus architectures and modern high-speed serial links. The PEX8112 specifically targets applications needing a direct interface between one PCI Express lane and a full-width PCI bus segment without complex switching logic.

Specialized Replacement Considerations

The PEX8111 serves as a functional alternative within the same family, offering similar bridging capabilities. Verify pinout compatibility and electrical parameters before substitution. Check for any differences in supported PCI clock frequencies or power management features between the two models.