PI4MSD5V9646LEX Equivalent & Substitute Parts

Part Overview

The PI4MSD5V9646LEX is a bus switch IC manufactured by Diodes Incorporated, designed for 2 x 1:4 multiplexing applications in single-supply environments. This component operates across a voltage range of 1.65V to 5.5V and is housed in a 16-TSSOP surface-mount package. The part is currently discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

PI4MSD5V9646LEX

Diodes IncorporatedIn Stock: 1013PI4MSD5V9646LEX Datasheet

Current PartRFQ

TCA9546APWR

Texas InstrumentsIn Stock: 118175TCA9546APWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI4MSD5V9646LEX is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: 2 x 1:4 multiplexing topology
• Package Type: 16-TSSOP form factor with identical 0.173" (4.40mm) width
• Voltage Supply: Single-supply operation within 1.65V to 5.5V range
• Operating Temperature Range: -40°C to 85°C
• Compliance Standards: ROHS3 compliance and REACH unaffected status
• Moisture Sensitivity: MSL 1 rating

The TCA9546APWR from Texas Instruments meets all specified parameters and serves as a direct functional equivalent for the discontinued PI4MSD5V9646LEX.

Parameter Comparison

Engineering Selection Recommendations

The TCA9546APWR is the appropriate substitute for the discontinued PI4MSD5V9646LEX based on the following factors:

• Functional Equivalence: Identical circuit topology, voltage specifications, and temperature operating range
• Package Compatibility: Identical 16-TSSOP package dimensions enable direct PCB footprint compatibility
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements
• Supply Availability: The TCA9546APWR maintains active product status with substantial inventory availability (118,089 pcs), ensuring production continuity
• Certification Alignment: Matching ECCN and HTSUS classifications confirm equivalent trade and export compliance

Frequently Asked Questions (FAQ)

Q: Can the TCA9546APWR be used as a direct replacement for the PI4MSD5V9646LEX?

A: Yes. Both parts share identical electrical specifications, circuit configuration, voltage range, temperature operating range, and 16-TSSOP package dimensions. No design modifications are required for substitution.

Q: Are there any differences in pin configuration between these parts?

A: No differences exist. Both components use the 16-TSSOP package with identical pin assignments for the 2 x 1:4 bus switch function.

Q: Does the TCA9546APWR meet the same compliance requirements?

A: Yes. The TCA9546APWR is ROHS3 compliant, REACH unaffected, and carries the same ECCN (EAR99) and HTSUS (8542.39.0001) classifications as the PI4MSD5V9646LEX.

Q: What is the moisture sensitivity level for the TCA9546APWR?

A: The TCA9546APWR has an MSL rating of 1 (Unlimited), matching the PI4MSD5V9646LEX specification.

Q: Is the TCA9546APWR currently available?

A: Yes. The TCA9546APWR maintains active product status with 118,089 pcs in stock, providing reliable supply for production requirements.

Q: Are there any voltage or temperature derating considerations when substituting?

A: No. The TCA9546APWR operates within the identical voltage range (1.65V ~ 5.5V) and temperature range (-40°C ~ 85°C) as the original part, requiring no design adjustments.