XRT75L00IV

Overview

The XRT75L00IV is a Line Interface Unit (LIU) manufactured by MaxLinear. It provides four channels for DS3, E3, and STS-1 line interfaces. The device operates on a single 5 V power supply. It supports an operating temperature range from -40°C to +85°C. The component is housed in a 176-pin LQFP package suitable for surface mount installation.

Feature Summary

• Integrates four independent channel interfaces for high-density telecom applications
• Supports standard DS3, E3, and STS-1 digital hierarchy protocols
• Designed for robust operation across extended industrial temperature ranges

Applications

• Telecommunications network infrastructure equipment
• Digital signal transmission systems requiring DS3/E3/STS-1 compliance
• Line interface units in carrier-grade hardware

Procurement Notes

Verify the obsolete status of this component with authorized distributors or MaxLinear directly. Confirm availability through secondary market suppliers if original manufacturing sources are exhausted. Ensure compatibility with existing system designs before sourcing replacement units from alternative vendors.

Selection Notes

Select this part for designs requiring integrated multi-channel LIU functionality. Verify that the 176-LQFP footprint matches the PCB layout constraints. Confirm that the 5 V supply voltage aligns with the system power architecture. Check thermal management requirements for the specified operating temperature range.

Part Context

This component belongs to the XRT75L series of telecom interface ICs. It serves as a specialized solution for digital line interfacing within telecommunications networks. The product represents a dedicated hardware implementation for handling specific digital hierarchy standards in professional communication systems.

Replacement Considerations

Public confirmed substitute part numbers: XRT75L00IV-F.