XR17C154IV-F Equivalent & Substitute Parts

Part Overview

The XR17C154IV-F is a quad-channel UART interface IC designed for PCI bus applications with RS485 protocol support. This component features a 144-LQFP surface mount package and integrates 64-byte FIFOs per channel with IrDA encoder/decoder functionality. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

XR17C154IV-F

MaxLinear, Inc.In Stock: 1929XR17C154IV-F Datasheet

Current PartRFQ

XR17D154IV-F

MaxLinear, Inc.In Stock: 2360XR17D154IV-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XR17C154IV-F is determined by the following critical parameters:

• Channel Configuration: 4 QUART channels required
• FIFO Depth: 64 Byte minimum
• Protocol Support: RS485 mandatory
• Maximum Data Rate: 6.25 Mbps or higher
• Package Type: 144-LQFP (20x20) surface mount
• IrDA Functionality: Encoder/decoder support required
• False Start Bit Detection: Required feature
• Moisture Sensitivity Level: MSL 3 (168 Hours)

The XR17D154IV-F qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while offering enhanced supply voltage flexibility and improved product status classification.

Parameter Comparison

Engineering Selection Recommendations

The XR17D154IV-F is the qualified substitute for the XR17C154IV-F based on functional equivalence across all critical parameters. The substitute part maintains identical channel count, FIFO architecture, protocol support, and package specifications. The XR17D154IV-F offers dual supply voltage compatibility (3.3V and 5V) compared to the single 5V specification of the original part, providing design flexibility for mixed-voltage systems. Both parts carry identical MSL ratings and ECCN classifications. The substitute part carries RoHS Compliant certification, which may be relevant for regulatory compliance requirements in target applications.

Frequently Asked Questions (FAQ)

Q: Can the XR17D154IV-F replace the XR17C154IV-F in existing designs?

A: Yes. The XR17D154IV-F maintains electrical and mechanical compatibility across all specified parameters including channel configuration, FIFO depth, protocol support, data rate, package type, and functional features. Pin-to-pin compatibility and functional equivalence are confirmed.

Q: What is the primary advantage of the XR17D154IV-F substitute?

A: The XR17D154IV-F supports dual supply voltages (3.3V and 5V) versus the single 5V supply of the original part. This enables integration into systems with mixed voltage domains without requiring additional voltage regulation.

Q: Are there packaging differences between these parts?

A: Both parts use identical 144-LQFP (20x20) surface mount packages. The XR17D154IV-F is supplied in Tray packaging, while the original part packaging is not specified. This does not affect electrical or mechanical compatibility.

Q: Does the substitute part meet RoHS requirements?

A: The XR17D154IV-F is RoHS Compliant. The original part's RoHS status is not specified in available documentation.

Q: Are the ECCN classifications identical?

A: The original part carries ECCN 5A991, while the substitute carries ECCN 5A991B1. Both fall within the same export control category for semiconductor components.

Q: What is the inventory status for these parts?

A: The original XR17C154IV-F has 1826 pieces in stock. The substitute XR17D154IV-F has 2286 pieces in stock, both listed as new original inventory.