PCA9548ADWR Equivalent & Substitute Parts

Part Overview

The PCA9548ADWR is a translating switch interface IC manufactured by Texas Instruments, housed in a 24-SOIC package. This component operates as an I2C/SMBus interface device with a supply voltage range of 2.3V to 5.5V. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

PCA9548ADWR

Texas InstrumentsIn Stock: 10347PCA9548ADWR Datasheet

Current PartRFQ

TCA9548APWR

Texas InstrumentsIn Stock: 202284TCA9548APWR Datasheet

MFR RecommendedRFQ

PCA9548AD,118

NXP USA Inc.In Stock: 2399PCA9548AD,118 Datasheet

DirectRFQ

ADP5586ACBZ-00-R7

Analog Devices Inc.In Stock: 2175ADP5586ACBZ-00-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PCA9548ADWR are identified based on the following critical parameters:

• Interface protocol compatibility (I2C/SMBus)
• Package type and form factor (24-pin surface mount variants)
• Supply voltage operating range overlap
• RoHS3 compliance and MSL rating
• Surface mount mounting type
• Base product family alignment (PCA9548 series)

Three substitute parts meet these criteria with varying degrees of parameter alignment:

1. TCA9548APWR - Texas Instruments bus switch with compatible I2C interface and overlapping voltage range
2. PCA9548AD,118 - NXP USA Inc. direct equivalent from the same product family with identical package footprint
3. ADP5586ACBZ-00-R7 - Analog Devices I/O expansion interface with I2C compatibility but different package form factor

Parameter Comparison

Engineering Selection Recommendations

PCA9548AD,118 is the primary substitute for direct replacement applications. This NXP part maintains identical package geometry (24-SOIC), matching footprint requirements for PCB layouts. The voltage supply range covers the critical 2.3V to 5.5V specification window of the original part. Both I2C and SMBus interface compatibility are preserved. Active product status ensures long-term availability and supply chain stability.

TCA9548APWR serves as an alternative for designs where package form factor flexibility exists. This Texas Instruments bus switch provides extended lower voltage operation (1.65V minimum) and maintains I2C protocol compatibility. The 24-TSSOP package requires PCB layout modification due to different pin pitch (0.173" versus 0.295"), but offers reduced board space footprint. Active status supports production continuity.

ADP5586ACBZ-00-R7 is suitable only for applications where I/O expansion functionality is the primary requirement and package constraints permit redesign. The 16-WLCSP package represents a significant form factor change from the original 24-SOIC. The reduced supply voltage range (1.65V to 3.6V maximum) excludes this part from designs requiring 5.5V operation. This option requires comprehensive circuit redesign and is not recommended for direct substitution.

All substitute candidates maintain ROHS3 compliance and MSL Level 1 ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can PCA9548AD,118 be used as a direct drop-in replacement for PCA9548ADWR?

A: Yes. Both parts share identical 24-SOIC package geometry, pin configuration, and I2C/SMBus interface specifications. The voltage supply range of PCA9548AD,118 (2.3V to 3.6V and 4.5V to 5.5V) covers the original part's 2.3V to 5.5V specification. PCB layout and schematic modifications are not required.

Q: What are the key differences between TCA9548APWR and PCA9548ADWR?

A: TCA9548APWR uses a 24-TSSOP package instead of 24-SOIC, requiring PCB layout redesign. The pin pitch differs (0.173" versus 0.295"), necessitating new footprint design. TCA9548APWR extends lower voltage operation to 1.65V. Both maintain I2C interface compatibility and active product status.

Q: Is ADP5586ACBZ-00-R7 compatible with 5V supply designs?

A: No. ADP5586ACBZ-00-R7 maximum supply voltage is 3.6V. This part is unsuitable for applications requiring 5V operation. The original PCA9548ADWR and recommended substitute PCA9548AD,118 both support 5V supply levels.

Q: Why is package form factor important for substitution?

A: Package form factor determines PCB footprint compatibility. PCA9548ADWR and PCA9548AD,118 both use 24-SOIC packages with identical pin spacing and dimensions, enabling direct PCB reuse. TCA9548APWR and ADP5586ACBZ-00-R7 require different footprints, necessitating PCB redesign and layout validation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. PCA9548AD,118, TCA9548APWR, and ADP5586ACBZ-00-R7 are all ROHS3 compliant with MSL Level 1 ratings, matching the original part's environmental and regulatory specifications.

Q: What is the supply chain status of these substitutes?

A: PCA9548AD,118, TCA9548APWR, and ADP5586ACBZ-00-R7 all carry active product status with documented inventory availability, ensuring production continuity and long-term sourcing reliability.