PCA9542APW/DG,118 Equivalent & Substitute Parts

Part Overview

The PCA9542APW/DG,118 is a 2-Channel I2C Multiplexer Interface manufactured by NXP USA Inc., housed in a 14-TSSOP package. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The part operates across a supply voltage range of 2.3V to 5.5V and complies with ROHS3 standards. Due to its obsolete status, sourcing equivalent or substitute components is necessary for production continuity and design flexibility.

Substiute Parts

PCA9542APW/DG,118

NXP USA Inc.In Stock: 1165PCA9542APW/DG,118 Datasheet

Current PartRFQ

PCA9542APW,118

NXP USA Inc.In Stock: 3214PCA9542APW,118 Datasheet

DirectRFQ

ADN8102ACPZ

Analog Devices Inc.In Stock: 4759ADN8102ACPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PCA9542APW/DG,118 is determined by the following critical parameters:

Primary Substitution Criteria:

• Interface protocol compatibility (I2C, SMBus)
• Functional application (2-Channel I2C Multiplexer)
• Supply voltage range overlap (2.3V ~ 5.5V minimum requirement)
• Surface mount packaging capability
• RoHS3 compliance status

Identified Substitutes:

1. PCA9542APW,118 (Direct NXP Equivalent) — Active product status, identical functional specification, same 14-TSSOP package, matching voltage range, and ROHS3 compliance. This represents the direct active-production replacement.

2. ADN8102ACPZ (Analog Devices Alternative) — Provides I2C interface capability with active product status and ROHS3 compliance. However, this part operates within a restricted voltage range (1.8V ~ 3.3V) and uses a different package format (64-LFCSP-VQ), requiring design-level evaluation for compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: PCA9542APW,118

This part is the recommended substitute for the obsolete PCA9542APW/DG,118. It maintains identical electrical specifications, package format, and functional characteristics while offering active product status. Both parts are manufactured by NXP USA Inc., ensuring design continuity. ROHS3 compliance and MSL-1 rating are preserved, eliminating design modifications or supply chain complications.

Secondary Selection: ADN8102ACPZ

This Analog Devices component provides I2C interface capability and active product status with ROHS3 compliance. However, the restricted supply voltage range (1.8V ~ 3.3V) and different package format (64-LFCSP-VQ versus 14-TSSOP) require circuit-level design changes. This option is suitable only when system voltage constraints align with the 1.8V to 3.3V specification and PCB layout modifications are acceptable.

Frequently Asked Questions (FAQ)

Q: Can PCA9542APW,118 be used as a direct replacement for PCA9542APW/DG,118?

A: Yes. Both parts are manufactured by NXP USA Inc., share identical electrical specifications (2.3V ~ 5.5V supply voltage), support I2C and SMBus protocols, and use the same 14-TSSOP package. The primary difference is product status: PCA9542APW/DG,118 is obsolete while PCA9542APW,118 is active. No design modifications are required.

Q: What are the key differences between PCA9542APW,118 and ADN8102ACPZ?

A: The primary differences are manufacturer (NXP versus Analog Devices), supply voltage range (2.3V ~ 5.5V versus 1.8V ~ 3.3V), and package format (14-TSSOP versus 64-LFCSP-VQ). While both support I2C interface, the ADN8102ACPZ operates at lower voltage levels and requires different PCB layout considerations due to its larger package footprint.

Q: Is the ADN8102ACPZ suitable for systems designed for 5V operation?

A: No. The ADN8102ACPZ maximum supply voltage is 3.3V, making it incompatible with systems requiring 5V operation. The PCA9542APW,118 is the appropriate choice for applications requiring the full 2.3V to 5.5V voltage range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both PCA9542APW,118 and ADN8102ACPZ are ROHS3 compliant, matching the compliance status of the original PCA9542APW/DG,118.

Q: What is the impact of different Moisture Sensitivity Levels (MSL)?

A: PCA9542APW,118 carries MSL-1 (Unlimited), identical to the original part. ADN8102ACPZ carries MSL-3 (168 Hours), requiring stricter moisture control during storage and handling. For applications with standard storage conditions, this difference may not present operational concerns but requires attention to component handling procedures.