XR17D154CV-F Equivalent & Substitute Parts

Part Overview

The XR17D154CV-F is a quad-channel UART interface IC manufactured by MaxLinear, Inc., designed for PCI bus applications with RS485 protocol support. This component features a 144-LQFP package and integrates 64-byte FIFOs per channel with a maximum data rate of 6.25 Mbps. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations where legacy compatibility is not required.

Substiute Parts

XR17D154CV-F

MaxLinear, Inc.In Stock: 1240XR17D154CV-F Datasheet

Current PartRFQ

XR17V354IB176-F

MaxLinear, Inc.In Stock: 2292XR17V354IB176-F Datasheet

MFR RecommendedRFQ

XR17D154IV-F

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the XR17D154CV-F is determined by the following critical parameters:

Functional Equivalence Criteria:

• Number of channels: 4 QUART channels required
• Protocol support: RS485 mandatory
• Interface category: UART IC for serial communication
• IrDA encoder/decoder capability: Required
• False start bit detection: Required

Electrical Compatibility Criteria:

• Supply voltage compatibility: 3.3V and/or 5V operation
• Data rate capability: Minimum 6.25 Mbps

Physical and Compliance Criteria:

• Surface mount technology
• RoHS compliance status
• Package form factor compatibility with PCB layout constraints

Two substitute parts are identified based on these parameters:

1. XR17D154IV-F — Parametric equivalent with identical electrical and functional specifications
2. XR17V354IB176-F — Manufacturer-recommended upgrade with enhanced capabilities and active product status

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Identical Performance):

The XR17D154IV-F is the parametric equivalent substitute. It maintains identical electrical specifications, FIFO depth, data rate, and package form factor as the XR17D154CV-F. Both parts are classified as obsolete but remain functionally interchangeable. Selection between these two is based on inventory availability and packaging preference (both supplied in trays). RoHS compliance is maintained in both variants.

For System Upgrade (Enhanced Capabilities, Active Product Status):

The XR17V354IB176-F is the manufacturer-recommended substitute for new designs or systems requiring extended product lifecycle support. This part is classified as active and offers significant enhancements:

• 4× FIFO depth increase (256 Byte vs. 64 Byte)
• 5× data rate increase (31.25 Mbps vs. 6.25 Mbps)
• Additional features: auto flow control and modem control
• ROHS3 compliance (newer standard)
• REACH unaffected status

Critical Consideration: The XR17V354IB176-F uses a 176-LFBGA package (13x13) instead of the 144-LQFP package. This requires PCB layout redesign and is not a direct pin-compatible replacement. Selection of this part is appropriate only when system redesign is feasible and the enhanced performance characteristics provide functional benefit.

Voltage Supply Compatibility: The XR17V354IB176-F operates at 3.3V only, whereas the XR17D154CV-F and XR17D154IV-F support both 3.3V and 5V. Systems requiring 5V operation must retain the original part or its parametric equivalent.

Frequently Asked Questions (FAQ)

Q: Can XR17D154IV-F be used as a direct replacement for XR17D154CV-F?

A: Yes. The XR17D154IV-F is a parametric equivalent with identical electrical specifications, channel count, protocol support, FIFO depth, data rate, package form factor, and mounting type. Both parts are obsolete but functionally interchangeable without PCB modification.

Q: What are the key differences between XR17D154CV-F and XR17V354IB176-F?

A: The XR17V354IB176-F offers enhanced performance with 4× FIFO capacity (256 Byte vs. 64 Byte), 5× higher data rate (31.25 Mbps vs. 6.25 Mbps), and additional features including auto flow control and modem control. However, it uses a different package (176-LFBGA vs. 144-LQFP), requires PCB redesign, and operates at 3.3V only (vs. 3.3V/5V dual support).

Q: Is the XR17V354IB176-F pin-compatible with XR17D154CV-F?

A: No. The XR17V354IB176-F uses a 176-pin LFBGA package (13x13) compared to the 144-pin LQFP package (20x20) of the XR17D154CV-F. This requires complete PCB layout redesign and is not suitable for direct socket replacement.

Q: Which substitute should I select for a new design?

A: For new designs, the XR17V354IB176-F is recommended as it is an active product with extended lifecycle support, newer RoHS3 compliance, and superior performance characteristics. PCB redesign is required but provides long-term supply security and enhanced functionality.

Q: Can I use XR17V354IB176-F in a system designed for 5V operation?

A: No. The XR17V354IB176-F operates at 3.3V only. Systems requiring 5V operation must use XR17D154CV-F or XR17D154IV-F, both of which support dual 3.3V/5V supply voltage.

Q: What is the difference in packaging between these parts?

A: XR17D154CV-F and XR17D154IV-F both use 144-LQFP (20x20) surface mount packages. XR17V354IB176-F uses a 176-LFBGA (13x13) package, which is smaller in footprint but requires BGA assembly capability and different PCB design considerations.

Q: Are all three parts RoHS compliant?

A: Yes. XR17D154CV-F and XR17D154IV-F are RoHS Compliant. XR17V354IB176-F meets the newer ROHS3 standard. All three parts are suitable for RoHS-regulated applications.