XRT81L27IV-F Equivalent & Substitute Parts

Part Overview

The XRT81L27IV-F is a specialized DECT interface IC manufactured by MaxLinear, Inc., housed in a 128-TQFP (14x20) package. This component is classified as obsolete, indicating that direct procurement from the original manufacturer is no longer available. Finding equivalent and substitute parts is necessary to maintain system functionality, ensure design continuity, and support legacy equipment requiring DECT interface capabilities.

Key Parameters

Parameter	Value
Manufacturer Part Number	XRT81L27IV-F
Manufacturer	MaxLinear, Inc.
Category	Interface
Description	IC INTERFACE SPECIALIZED 128TQFP
Package / Case	128-LQFP
Supplier Device Package	128-TQFP (14x20)
Mounting Type	Surface Mount
Voltage - Supply	3.3V
Interface	Serial
Applications	DECT
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	2A (4 Weeks)

Substitute Part Grouping Explanation

Substitution for the XRT81L27IV-F is determined by the following critical parameters:

Interface Type: Serial interface capability for DECT applications
Voltage Supply: 3.3V operation
Package Category: Surface mount technology
Product Status: Active status preferred for long-term availability
Compliance: RoHS and REACH compliance for regulatory alignment

The substitute parts listed below are manufacturer-recommended alternatives that maintain compatibility with the original application requirements while offering active product status and improved availability.

Parameter Comparison

Parameter	XRT81L27IV-F	ADP5589ACBZ-01-R7	DS125DF1610FBE/NOPB	GS6042-INTE3	LMH1219RTWR	MC33660BEF	PI3HDMI511ZLE+DA	PI3HDMI511ZLEX
Manufacturer	MaxLinear, Inc.	Analog Devices Inc.	Texas Instruments	Semtech Corporation	Texas Instruments	NXP USA Inc.	Diodes Incorporated	Diodes Incorporated
Category	Interface	Interface	Interface	Interface	Interface	Interface	Interface	Interface
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Voltage - Supply	3.3V	1.65V ~ 3.6V	2.5V	3.3V	-	8V ~ 18V	3.3V	3.3V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	128-LQFP	25-UFBGA, WLCSP	196-BBGA	16-VQFN Exposed Pad	24-WFQFN Exposed Pad	8-SOIC (0.154", 3.90mm Width)	32-WFQFN Exposed Pad	32-WFQFN Exposed Pad
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	-	REACH Unaffected	REACH Unaffected	-	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Moisture Sensitivity Level (MSL)	2A (4 Weeks)	1 (Unlimited)	4 (72 Hours)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	-	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturing status, ensuring long-term availability and supply chain stability compared to the obsolete XRT81L27IV-F.

RoHS and REACH Compliance: ADP5589ACBZ-01-R7, DS125DF1610FBE/NOPB, LMH1219RTWR, MC33660BEF, PI3HDMI511ZLE+DA, and PI3HDMI511ZLEX all meet ROHS3 compliance and REACH Unaffected status, supporting regulatory requirements for modern electronics manufacturing.

Voltage Supply Compatibility: GS6042-INTE3 and PI3HDMI511ZLE+DA operate at 3.3V, matching the original part's supply voltage specification. ADP5589ACBZ-01-R7 supports a wider voltage range (1.65V ~ 3.6V) that encompasses 3.3V operation. DS125DF1610FBE/NOPB operates at 2.5V and MC33660BEF operates at 8V ~ 18V, requiring voltage regulation considerations in system design.

Moisture Sensitivity: ADP5589ACBZ-01-R7, GS6042-INTE3, and PI3HDMI511ZLEX offer MSL 1 (Unlimited), providing superior moisture handling compared to the original part's MSL 2A (4 Weeks).

Package Considerations: Substitute parts employ different package technologies (WLCSP, FCBGA, QFN, SOIC, TQFN) requiring PCB layout and assembly process adjustments from the original 128-TQFP package.

Frequently Asked Questions (FAQ)

Q: Why is the XRT81L27IV-F obsolete and what does this mean for my design?

A: Obsolete status indicates the manufacturer has discontinued production. Substitute parts must be identified to maintain system functionality and support ongoing production or field repairs. All listed alternatives are active products with confirmed manufacturing availability.

Q: What are the critical parameters for substitution?

A: Interface type (Serial), voltage supply (3.3V nominal), surface mount technology, and application compatibility (DECT or equivalent interface functionality) are the primary substitution criteria. Product status and compliance certifications determine long-term viability.

Q: Can I use parts with different voltage supply ranges?

A: Parts with voltage ranges that include 3.3V (such as ADP5589ACBZ-01-R7 at 1.65V ~ 3.6V) are compatible. Parts with fixed voltages outside the 3.3V specification (DS125DF1610FBE/NOPB at 2.5V, MC33660BEF at 8V ~ 18V) require voltage regulation or system redesign.

Q: What impact do different packages have on substitution?

A: Package differences require PCB layout redesign, assembly process modifications, and thermal management evaluation. The original 128-TQFP package differs significantly from substitute packages (WLCSP, FCBGA, QFN, SOIC, TQFN), necessitating engineering validation before implementation.

Q: Are all substitute parts RoHS and REACH compliant?

A: All listed substitute parts meet ROHS3 compliance and REACH Unaffected status, supporting modern regulatory requirements. The original XRT81L27IV-F compliance status is not specified in available documentation.

Q: What is the difference between PI3HDMI511ZLE+DA and PI3HDMI511ZLEX?

A: Both parts are HDMI interface ICs in 32-TQFN packages with 3.3V supply. PI3HDMI511ZLEX offers superior moisture handling (MSL 1 Unlimited vs. unspecified MSL) and is available in Tape & Reel packaging with higher inventory levels (17,078 pcs vs. 806 pcs).

Q: How do I evaluate moisture sensitivity for my application?

A: MSL ratings indicate maximum storage duration before reflow soldering. Lower MSL values (1 = Unlimited) provide greater flexibility in manufacturing and storage. Higher MSL values (4 = 72 Hours) require controlled storage environments and shorter handling windows.

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