PCA9539APW,118 Equivalent & Substitute Parts

Part Overview

The PCA9539APW,118 is a 16-bit I/O Expander designed for I2C and SMBus communication at 400 kHz, manufactured by NXP USA Inc. This interface component operates across a wide supply voltage range of 1.65V to 5.5V and is housed in a 24-TSSOP surface mount package. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative components may be required due to inventory availability, lead time considerations, or specific application requirements.

Substiute Parts

PCA9539APW,118

NXP USA Inc.In Stock: 918PCA9539APW,118 Datasheet

Current PartRFQ

TCA6416APWR

Texas InstrumentsIn Stock: 35472TCA6416APWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCA9539APW,118 is determined by strict equivalence across the following critical parameters:

• I/O Configuration: 16-bit I/O count
• Communication Protocol: I2C and SMBus support at 400 kHz
• Electrical Characteristics: Push-Pull output type with 10mA and 25mA source/sink capability
• Supply Voltage Range: 1.65V to 5.5V operation
• Temperature Range: -40°C to 85°C operating window
• Package Specification: 24-TSSOP surface mount form factor
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status

The TCA6416APWR from Texas Instruments meets all specified parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the PCA9539APW,118 and TCA6416APWR are active production components with identical electrical specifications and package configurations. Selection between these parts should be based on:

• Inventory Availability: TCA6416APWR currently has 35,400 units in stock compared to 854 units for PCA9539APW,118
• Supply Chain Lead Times: Availability differences may impact project timelines
• Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status
• Packaging Format: PCA9539APW,118 is supplied in Tape & Reel format; TCA6416APWR is available in Cut Tape and Digi-Reel formats

Frequently Asked Questions (FAQ)

Q: Can TCA6416APWR be used as a direct replacement for PCA9539APW,118?

A: Yes. Both devices are functionally equivalent across all specified electrical and mechanical parameters, including I/O count, communication protocol, supply voltage range, operating temperature, and package specification.

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

A: Both components use the 24-TSSOP package with identical physical dimensions (0.173" width, 4.40mm). Pin compatibility is maintained for direct board-level substitution.

Q: Do both parts support the same I2C/SMBus clock frequencies?

A: Yes. Both the PCA9539APW,118 and TCA6416APWR operate at 400 kHz for I2C and SMBus communication.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape for automated assembly processes. Cut Tape and Digi-Reel formats provide smaller quantity options. Electrical and functional specifications remain identical regardless of packaging format.

Q: Are both parts suitable for industrial temperature applications?

A: Yes. Both components operate across the -40°C to 85°C temperature range, supporting industrial and extended commercial applications.

Q: Do both parts require the same supply voltage?

A: Yes. Both the PCA9539APW,118 and TCA6416APWR operate across 1.65V to 5.5V supply voltage range, enabling use in single-cell battery applications through 5V logic systems.