XR17D154IV-F

Overview

The XR17D154IV-F is a quad-channel Universal PCI Bus UART interface controller manufactured by MaxLinear. It integrates four independent UART channels, each equipped with a 64-byte FIFO buffer to facilitate high-speed data transfer and reduce CPU overhead. The device supports data rates up to 6.25 Mbps and operates on a single 5V power supply. Key functional features include automatic hardware flow control, IrDA encoder/decoder capabilities, and false start bit detection. It is housed in a 144-lead Low Profile Quad Flat Package (LQFP) designed for surface mount technology, ensuring compatibility with standard PCI bus signaling designs.

Feature Summary

• Integrates four independent UART channels with dedicated 64-byte FIFO buffers per channel
• Supports universal PCI bus signaling designs with automatic hardware flow control
• Includes integrated IrDA encoder and decoder functionality for infrared communication
• Features false start bit detection to improve signal integrity and error handling

Applications

• PCI-based industrial automation systems requiring multiple serial interfaces
• Telecommunications equipment utilizing PCI expansion slots
• Embedded systems needing high-density serial I/O connectivity
• Data acquisition systems requiring reliable asynchronous communication

Procurement Notes

Verify the specific suffix 'IV-F' against official MaxLinear documentation to confirm temperature range and package variations. Ensure compatibility with the target system's PCI bus voltage levels and mechanical constraints before procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a design requires four UART ports within a PCI architecture. Compare the 64-byte FIFO depth against application throughput requirements. Verify that the 144-LQFP footprint fits the PCB layout constraints. Consider the 5V operating voltage requirement relative to other available logic families.

Part Context

This component belongs to the XR17D15x series of PCI UART controllers from MaxLinear. It shares architectural similarities with other members like the XR17C154 but differs in specific interface standards and pin configurations. The series is designed for legacy PCI applications where multiple serial ports are necessary.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided source material. Consult MaxLinear technical support for current obsolescence status and qualified replacement options.