USB7051/KDX Equivalent & Substitute Parts

Part Overview

The USB7051/KDX is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C communication protocol support. This component is packaged in a 100-VQFN (12x12) format with exposed pad and operates across a temperature range of 0°C to 70°C. The product is currently classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

USB7051/KDX

Microchip TechnologyIn Stock: 1085USB7051/KDX Datasheet

Current PartRFQ

USB7050P/KDX

Microchip TechnologyIn Stock: 1051USB7050P/KDX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB7051/KDX is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize the 100-VQFN (12x12) package with exposed pad to ensure PCB footprint and thermal management compatibility.

Functional Classification: The substitute must serve as a Hub Controller within the USB interface category, maintaining the core function of USB hub control.

Interface Protocol Support: The substitute must support I2C interface as a minimum requirement, as this is the primary control interface specified for the original part.

Operating Temperature Range: The substitute must maintain the 0°C to 70°C operating temperature specification to ensure thermal compatibility with the original application environment.

Compliance Standards: The substitute must maintain ROHS3 compliance and equivalent moisture sensitivity classification to meet regulatory and manufacturing process requirements.

The USB7050P/KDX meets all these substitution criteria while offering enhanced functionality through additional interface protocols and active product status.

Parameter Comparison

Engineering Selection Recommendations

The USB7050P/KDX is the manufacturer-recommended substitute for the obsolete USB7051/KDX. Both components share identical package specifications (100-VQFN 12x12 with exposed pad) and operating temperature ranges, ensuring direct PCB compatibility without layout modifications.

The USB7050P/KDX maintains active product status with Microchip Technology, providing assured long-term availability and supply chain continuity. Both parts comply with ROHS3 standards and carry equivalent moisture sensitivity classifications, meeting regulatory and manufacturing requirements.

The substitute part supports the required I2C interface protocol while providing additional interface options (GPIO, I2S, SPI, UART, USB). This expanded interface capability does not compromise compatibility with existing I2C-based control implementations, as the I2C interface remains fully supported.

The USB7050P/KDX is qualified to AEC-Q100 automotive standards and carries automotive-grade classification, indicating enhanced reliability and quality assurance compared to the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the USB7050P/KDX directly replace the USB7051/KDX without PCB modifications?

A: Yes. Both parts use identical 100-VQFN (12x12) package specifications with exposed pad, ensuring footprint and thermal pad compatibility. No PCB layout changes are required.

Q: Are the I2C interface specifications identical between the two parts?

A: The USB7050P/KDX supports I2C interface as specified for the USB7051/KDX. The substitute part includes additional interface protocols (GPIO, I2S, SPI, UART, USB) that do not affect I2C operation or compatibility.

Q: What is the significance of the USB7050P/KDX being active versus the USB7051/KDX being obsolete?

A: Active product status indicates ongoing manufacturing, quality assurance, and supply availability from Microchip Technology. The obsolete status of the USB7051/KDX makes the active USB7050P/KDX the appropriate choice for new designs and ongoing production support.

Q: Do both parts meet the same compliance and environmental standards?

A: Both parts comply with ROHS3 standards and carry MSL 3 moisture sensitivity classification. Operating temperature ranges are identical at 0°C to 70°C. The USB7050P/KDX additionally qualifies to AEC-Q100 automotive standards.

Q: Are there voltage supply differences between the parts?

A: The USB7051/KDX does not specify voltage supply parameters in the provided data. The USB7050P/KDX operates at 1.08V to 1.32V and 3V to 3.6V supply ranges. Verify voltage compatibility with your application requirements.