PCA9536D,112 Equivalent & Substitute Parts

Part Overview

The PCA9536D,112 is a 4-channel I/O expander interface component manufactured by NXP USA Inc., designed for I2C and SMBus communication at 400 kHz. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

PCA9536D,112

NXP USA Inc.In Stock: 887PCA9536D,112 Datasheet

Current PartRFQ

PCA9536D

Texas InstrumentsIn Stock: 25240PCA9536D Datasheet

DirectRFQ

PCA9536DR

Texas InstrumentsIn Stock: 7181PCA9536DR Datasheet

MFR RecommendedRFQ

PCA9536D

Texas InstrumentsIn Stock: 25240PCA9536D Datasheet

DirectRFQ

PCA9536DR

Texas InstrumentsIn Stock: 7181PCA9536DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCA9536D,112 is determined by strict equivalence across the following critical parameters:

• Functional I/O Count: 4 channels
• Communication Protocol: I2C and SMBus compatibility at 400 kHz
• Electrical Output Characteristics: Push-Pull output type with 10mA/25mA source/sink capability
• Supply Voltage Range: 2.3V to 5.5V operation
• Temperature Range: -40°C to 85°C
• Package Footprint: 8-SOIC form factor with 0.154" (3.90mm) width
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

All substitute parts listed maintain these parameters without deviation. Substitution is valid only when all electrical and mechanical specifications align with the original component.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PCA9536DR (Texas Instruments)

The PCA9536DR is the preferred substitute due to its active product status. This part maintains full electrical and mechanical equivalence to the PCA9536D,112 while offering ongoing manufacturer support and availability. The active status ensures long-term supply chain reliability and access to current technical documentation.

Secondary Option: PCA9536D (Texas Instruments)

The PCA9536D from Texas Instruments provides complete functional equivalence but carries obsolete product status. This option is suitable only when inventory availability is prioritized over long-term supply assurance.

Both Texas Instruments alternatives satisfy all compliance requirements, including ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental compatibility with the original NXP component.

Frequently Asked Questions (FAQ)

Q: Can PCA9536DR be used as a direct replacement for PCA9536D,112?

A: Yes. The PCA9536DR maintains identical electrical specifications, output characteristics, supply voltage range, temperature operating range, and 8-SOIC package footprint. No circuit modifications are required for substitution.

Q: What is the difference between PCA9536D and PCA9536DR?

A: Both parts are functionally equivalent. The primary difference is packaging: PCA9536D is supplied in Tube packaging, while PCA9536DR is supplied in Cut Tape (CT) & Digi-Reel® format. PCA9536DR also maintains active product status, whereas PCA9536D is obsolete.

Q: Are there any compatibility concerns with the 8-SOIC package?

A: No. All substitute parts use the identical 8-SOIC (0.154", 3.90mm Width) package. PCB footprints and soldering processes remain unchanged.

Q: Does the substitute part support the same I2C/SMBus protocols?

A: Yes. All substitute parts operate at 400 kHz I2C and SMBus protocols with identical push-pull output characteristics and current ratings (10mA/25mA source/sink).

Q: Are there supply voltage or temperature range differences?

A: No. All substitute parts operate within the identical 2.3V to 5.5V supply range and -40°C to 85°C temperature range.

Q: What compliance certifications apply to the substitute parts?

A: All substitute parts are ROHS3 compliant with MSL Level 1 rating, matching the original component's environmental and regulatory compliance profile.