XR17D158IV-F

Overview

The XR17D158IV-F is an octal Universal PCI Bus UART interface integrated circuit manufactured by MaxLinear. It provides eight independent UART channels within a single LQFP-144 package, designed for high-density serial communication applications. The device operates on a 5V power supply with a voltage range of 4.5V to 5.5V and supports data rates up to 6.25 Mb/s. Each channel is equipped with a 64-byte FIFO buffer to manage data flow efficiently. The component functions within an industrial temperature range of -40°C to +85°C and includes features such as automatic flow control and IrDA encoder/decoder support.

Feature Summary

• Integrates eight universal PCI bus UART channels in a compact surface-mount package
• Includes 64-byte FIFO buffers per channel to enhance data throughput and system efficiency
• Supports automatic hardware flow control and IrDA encoding/decoding protocols

Applications

• Industrial automation systems requiring multiple serial connections
• Telecommunications equipment utilizing PCI bus architectures
• Embedded computing platforms needing high-density UART expansion

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements during storage and handling. Check for valid datasheets and PCN documentation to ensure compatibility with current manufacturing standards before procurement.

Selection Notes

Select this component when designing systems requiring eight UART interfaces on a PCI bus architecture. Ensure the design accommodates the 144-LQFP footprint and 5V logic levels. Consider thermal management for the -40°C to +85°C operating range. Verify that the 6.25 Mb/s maximum data rate meets application bandwidth requirements.

Part Context

This part belongs to the XR17D158 series of octal PCI UARTs from MaxLinear. It serves as a legacy solution for PCI-based serial expansion. The device is functionally similar to the XR17C158 series but may differ in specific electrical characteristics or packaging details. It represents a specialized interface solution for older PCI infrastructure designs.

Replacement Considerations

The XR17V358IB176-F is a manufacturer-recommended replacement. Note that the substitute offers 256-byte FIFOs instead of 64 bytes and supports PCIe, requiring verification of pinout and software compatibility.