PI7C9X440SLBFDE

Controllers Overview

The PI7C9X440SLBFDE is a PCI Express to USB 2.0 Host Controller manufactured by Diodes Incorporated. It integrates one PCIe lane and four USB ports within a single device. The component operates with a supply voltage ranging from 900 mV to 1.1 V, utilizing a nominal 1 V operating voltage. It supports an industrial temperature range spanning from -40°C to +85°C. The maximum power dissipation is rated at 432 mW. The integrated circuit is housed in a 128-pin LQFP package designed for surface mount technology.

Controllers Feature Summary

• Integrates a PCI Express Gen 1.0 interface with a USB 2.0 host controller supporting High-Speed, Full-Speed, and Low-Speed modes.
• Includes an OHCI legacy support block alongside an EHCI compliant host controller architecture.
• Features configurable physical layer parameters including transmitter swing, de-emphasis, and driver amplitude settings.
• Supports configuration via an onboard EEPROM or direct register access through the System Management Bus.

Controllers Applications

• PCIe expansion cards requiring multiple USB connectivity options
• Industrial computing systems needing robust interface bridging
• Embedded hardware designs integrating peripheral connectivity

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Confirm RoHS compliance status directly with the supplier prior to purchase. Ensure that the procurement channel is authorized to maintain product integrity and warranty coverage.

Controllers Selection Notes

Select this component when a design requires converting a single PCIe lane into four independent USB 2.0 ports. Verify that the system power budget accommodates the specified 432 mW dissipation limit. Ensure the PCB layout supports the 128-pin LQFP footprint and thermal requirements for the intended operating environment.

Controllers Part Context

This part belongs to the PI7C9X440 series of bridge controllers produced by Diodes Incorporated. It serves as a specialized interface solution for connecting USB peripherals to PCIe-based host systems. The device replaces discrete controller solutions by combining protocol translation and physical layer drivers in a single package.

Controllers Replacement Considerations

Consult the manufacturer's datasheet for officially listed compatible replacements or updated revisions. Verify pin compatibility and electrical specifications before substituting any alternative components.