XR16V554IV-F Equivalent & Substitute Parts

Part Overview

The XR16V554IV-F is a quad-channel UART interface IC manufactured by MaxLinear, Inc., featuring 16-byte FIFO buffers, RS232 protocol support, and integrated modem control. This component is currently in active production status and widely used in serial communication applications requiring multi-channel UART functionality with hardware flow control.

Substitute parts become necessary when the XR16V554IV-F reaches end-of-life, when inventory constraints occur, or when design requirements necessitate alternative electrical or mechanical specifications. The parts listed below maintain functional compatibility through equivalent channel configuration, package form factor, and core UART protocol support.

Substiute Parts

XR16V554IV-F

MaxLinear, Inc.In Stock: 2121XR16V554IV-F Datasheet

Current PartRFQ

SC16C654BIB64,151

NXP USA Inc.In Stock: 1962SC16C654BIB64,151 Datasheet

MFR RecommendedRFQ

TL16CP554APM

Texas InstrumentsIn Stock: 1892TL16CP554APM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XR16V554IV-F are qualified based on the following criteria:

Primary Compatibility Parameters:

• Number of Channels: 4 (QUART configuration)
• Package Form Factor: 64-LQFP (10x10) surface mount
• Mounting Type: Surface Mount
• Auto Flow Control: Yes
• Modem Control: Yes
• False Start Bit Detection: Yes

Secondary Compatibility Parameters:

• FIFO Size: 16 Byte or larger (larger FIFO provides enhanced buffering capability)
• Data Rate: Equal to or greater than 4 Mbps
• Voltage Supply: Must support operation within or encompass the 2.25V ~ 3.6V range

The two substitute parts listed below maintain the core quad-channel UART architecture and identical package footprint, ensuring direct PCB compatibility. Variations in FIFO depth, maximum data rate, and supply voltage range represent functional enhancements or different operational specifications rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

SC16C654BIB64,151 (NXP USA Inc.): This substitute offers enhanced FIFO capacity (64 Byte versus 16 Byte) and higher maximum data rate (5 Mbps versus 4 Mbps). The part is currently in Last Time Buy status, indicating limited future availability. Supply voltage support includes 2.5V, 3.3V, and 5V options, providing broader voltage compatibility than the main part. RoHS3 compliance and MSL 1 rating indicate superior moisture resistance. This substitute is suitable for applications requiring higher data throughput or extended buffering capability, provided that inventory procurement occurs before Last Time Buy window closure.

TL16CP554APM (Texas Instruments): This substitute maintains identical FIFO size (16 Byte) and package configuration as the main part. However, the maximum data rate is limited to 1 Mbps, representing a significant reduction from the 4 Mbps specification of the XR16V554IV-F. The part is classified as Obsolete, indicating no further manufacturing or support availability. Supply voltage range (3V ~ 5.25V) does not fully encompass the 2.25V lower specification of the main part. This substitute is not recommended for new designs and should be considered only for legacy system maintenance where existing inventory exists.

Frequently Asked Questions (FAQ)

Q: Can the SC16C654BIB64,151 be used as a direct replacement for the XR16V554IV-F?

A: Yes, from a package and pinout perspective. The SC16C654BIB64,151 maintains the identical 64-LQFP (10x10) form factor and quad-channel UART architecture. However, the increased FIFO depth (64 Byte) and higher data rate (5 Mbps) represent functional enhancements rather than limitations. Firmware or driver software may require validation to confirm compatibility with the enhanced specifications.

Q: What is the primary limitation of the TL16CP554APM substitute?

A: The TL16CP554APM is classified as Obsolete and features a maximum data rate of only 1 Mbps, compared to 4 Mbps for the XR16V554IV-F. This represents a 75% reduction in throughput capability. Additionally, the part's supply voltage range (3V ~ 5.25V) does not support the 2.25V lower specification of the main part. This substitute is unsuitable for new designs.

Q: Are all substitute parts available in the same packaging?

A: Yes. All three parts (XR16V554IV-F, SC16C654BIB64,151, and TL16CP554APM) use the 64-LQFP (10x10) surface mount package, ensuring identical PCB footprint and land pattern compatibility.

Q: What compliance certifications should be verified before substitution?

A: The main part (XR16V554IV-F) is RoHS Compliant. Both substitutes carry ROHS3 Compliant certification, which represents a more recent and stringent standard. Verify that your application and supply chain requirements accept ROHS3 certification. Additionally, confirm that the substitute part's MSL (Moisture Sensitivity Level) rating aligns with your manufacturing and storage processes.

Q: Which substitute offers the best long-term availability?

A: The SC16C654BIB64,151 is currently in Last Time Buy status, indicating limited future availability. The TL16CP554APM is Obsolete with no manufacturing support. For new designs requiring long-term component availability, the XR16V554IV-F (Active status) remains the preferred choice. Evaluate inventory procurement timelines carefully if substitution becomes necessary.