PCA9541PW/02,112 Equivalent & Substitute Parts

Part Overview

The PCA9541PW/02,112 is a 2-Channel I2C Multiplexer Interface manufactured by NXP USA Inc., housed in a 16-TSSOP package. This component facilitates I2C and SMBus communication across multiple channels with a supply voltage range of 2.3V to 5.5V. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system design and maintenance applications requiring I2C multiplexing functionality.

Substiute Parts

PCA9541PW/02,112

NXP USA Inc.In Stock: 1236PCA9541PW/02,112 Datasheet

Current PartRFQ

AD6623ASZ

Analog Devices Inc.In Stock: 2199AD6623ASZ Datasheet

MFR RecommendedRFQ

ADN8102ACPZ

Analog Devices Inc.In Stock: 4759ADN8102ACPZ Datasheet

MFR RecommendedRFQ

TW3811-TC1-CR

Renesas Electronics CorporationIn Stock: 2085TW3811-TC1-CR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PCA9541PW/02,112 are identified based on the following critical parameters:

• Interface Compatibility: All substitute parts must support I2C communication protocol
• Category Classification: Parts must be classified as Interface components
• Mounting Type: Surface mount technology required for PCB integration
• RoHS Compliance: ROHS3 compliance maintained across all alternatives
• Supply Voltage Range: Operating voltage specifications must align with system requirements
• Product Status: Active status preferred for long-term availability and support

The three substitute parts listed (AD6623ASZ, ADN8102ACPZ, TW3811-TC1-CR) are provided as manufacturer-recommended alternatives. Each part maintains interface functionality and compliance certifications, though specific package configurations and voltage specifications vary based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts must account for the following factors:

Product Status Consideration: The PCA9541PW/02,112 is classified as Obsolete. All three substitute parts (AD6623ASZ, ADN8102ACPZ, TW3811-TC1-CR) maintain Active product status, ensuring continued manufacturing support and availability.

Compliance Alignment: All substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory requirements of the original component.

Interface Functionality: ADN8102ACPZ explicitly supports I2C interface, directly aligning with the primary communication protocol of the PCA9541PW/02,112. AD6623ASZ and TW3811-TC1-CR support alternative interface protocols (Serial and MII/RMII respectively), requiring application-level evaluation for compatibility.

Voltage Specification: The original part operates across 2.3V to 5.5V. Substitute parts operate within narrower ranges (1.8V to 3.3V for ADN8102ACPZ and TW3811-TC1-CR), necessitating verification against system power supply specifications.

Package Considerations: Significant package differences exist among alternatives. The original 16-TSSOP package differs substantially from the 128-BFQFP, 64-LFCSP-VQ, and 100-TQFP packages of the substitutes, requiring PCB layout redesign.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts directly replace the PCA9541PW/02,112 without PCB modifications?

A: No. The substitute parts utilize different package configurations (128-BFQFP, 64-LFCSP-VQ, and 100-TQFP versus the original 16-TSSOP). PCB layout redesign is required for any substitution.

Q: Which substitute part most closely matches the I2C functionality of the original component?

A: ADN8102ACPZ explicitly supports I2C interface protocol. However, its voltage range (1.8V to 3.3V) is narrower than the original part (2.3V to 5.5V), requiring system voltage verification.

Q: What is the significance of the Moisture Sensitivity Level difference?

A: The original part has MSL 1 (Unlimited), indicating no moisture sensitivity constraints. All substitute parts have MSL 3 (168 Hours), requiring controlled storage and handling procedures during manufacturing and assembly.

Q: Are all substitute parts suitable for new design implementations?

A: All three substitute parts maintain Active product status and ROHS3 compliance. Selection depends on specific application requirements regarding interface protocol, voltage range, and package compatibility.

Q: What inventory status should be considered for component procurement?

A: Current inventory levels are: AD6623ASZ (2100 Pcs), ADN8102ACPZ (4740 Pcs), and TW3811-TC1-CR (2000 Pcs). These quantities support production requirements, though long-term availability should be confirmed with suppliers.