PCA9527DP,118 Equivalent & Substitute Parts

Part Overview

The PCA9527DP,118 is an I2C redriver buffer and accelerator IC manufactured by NXP USA Inc., designed for 2-wire bus signal conditioning in interface applications. This component operates at a maximum data rate of 400kHz across 3 channels and supports supply voltages from 2.7V to 5.5V. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

PCA9527DP,118

NXP USA Inc.In Stock: 871PCA9527DP,118 Datasheet

Current PartRFQ

PCA9527DPZ

NXP USA Inc.In Stock: 2554PCA9527DPZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCA9527DP,118 is determined by strict equivalence across the following critical parameters:

• Manufacturer & Base Product: Both parts must originate from NXP USA Inc. and share the base product number PCA9527
• Functional Classification: Type must be Buffer, Accelerator with identical I2C application focus
• Electrical Specifications: Data rate (400kHz), number of channels (3), input/output configuration (2-Wire Bus), supply voltage range (2.7V ~ 5.5V), and current supply (100mA) must remain constant
• Physical Form Factor: Package type (10-TFSOP, 10-MSOP) and mounting method (Surface Mount) must be identical
• Environmental & Compliance: Operating temperature range (-40°C ~ 85°C), RoHS3 compliance, and MSL rating (1) must match

The PCA9527DPZ qualifies as a direct substitute based on full alignment with these parameters. The primary distinction is product status (active vs. obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The PCA9527DPZ is the direct functional equivalent of the PCA9527DP,118. Selection between these parts should be based on the following factors:

Product Status: The PCA9527DP,118 is obsolete, while the PCA9527DPZ maintains active status with NXP USA Inc. For new designs or long-term system support, the PCA9527DPZ is the appropriate choice.

Compliance & Certification: Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL rating (1), ensuring regulatory and environmental compatibility across applications.

Packaging Considerations: The PCA9527DPZ is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly. The original PCA9527DP,118 packaging format is not specified in the provided data. Tape & Reel packaging is compatible with standard pick-and-place equipment.

Electrical Performance: All critical electrical parameters—supply voltage range (2.7V ~ 5.5V), current consumption (100mA), data rate (400kHz), and operating temperature (-40°C ~ 85°C)—are identical. The PCA9527DPZ specifies an additional delay time parameter of 350ns, which represents documented performance data rather than a functional difference.

Frequently Asked Questions (FAQ)

Q: Can the PCA9527DPZ directly replace the PCA9527DP,118 in existing designs?

A: Yes. Both parts share identical electrical specifications, package form factor (10-TFSOP, 10-MSOP), and functional characteristics. The PCA9527DPZ is the active production equivalent and is suitable for direct substitution in PCB layouts and circuit designs.

Q: What is the significance of the "Tape & Reel (TR)" packaging format for the PCA9527DPZ?

A: Tape & Reel is a standard packaging format for surface-mount components used in automated manufacturing. It allows components to be fed directly into pick-and-place equipment for high-volume assembly. This format does not affect electrical performance or physical compatibility with the PCB footprint.

Q: Are there any supply voltage differences between these parts?

A: The PCA9527DP,118 specifies a single supply voltage range of 2.7V ~ 5.5V. The PCA9527DPZ lists two voltage ranges: 2.7V ~ 3.6V and 2.7V ~ 5.5V. Both parts operate across the full 2.7V ~ 5.5V range, ensuring compatibility in applications using this voltage specification.

Q: Why is the delay time parameter only specified for the PCA9527DPZ?

A: The delay time of 350ns is a documented performance characteristic of the PCA9527DPZ. The absence of this specification for the PCA9527DP,118 does not indicate a functional difference; it reflects differences in available technical documentation. Both parts perform the same buffering and acceleration function in I2C applications.

Q: Is the PCA9527DPZ suitable for new product designs?

A: Yes. The PCA9527DPZ maintains active product status with NXP USA Inc., ensuring ongoing availability, technical support, and compliance with current manufacturing standards. It is the recommended choice for new designs requiring I2C buffer and accelerator functionality.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in manufacturer (NXP USA Inc.), base product family (PCA9527), functional type (Buffer, Accelerator), application (I2C), data rate (400kHz), channel count (3), bus configuration (2-Wire), supply voltage (2.7V ~ 5.5V), current rating (100mA), operating temperature range (-40°C ~ 85°C), and physical package (10-TFSOP, 10-MSOP). All these parameters must match for direct substitution.