USB7056/KDX Equivalent & Substitute Parts

Part Overview

The USB7056/KDX is a 6-port USB 3.1 Gen1 Type-C hub controller manufactured by Microchip Technology, designed for multi-port USB interface applications. This device integrates GPIO, I2C, I2S, SPI, and UART interfaces within a 100-VQFN package. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

USB7056/KDX

Microchip TechnologyIn Stock: 1107USB7056/KDX Datasheet

Current PartRFQ

USB7016/KDX

Microchip TechnologyIn Stock: 981USB7016/KDX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USB7056/KDX is determined by the following critical parameters:

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

Manufacturer Consistency: Microchip Technology maintains design continuity across its USB hub controller product line, allowing substitutes from the same manufacturer to maintain firmware and driver compatibility.

Interface Capability: The substitute must support core interface protocols (GPIO, I2C, SPI, USB) that are present in both the main part and substitute specifications. While the USB7056/KDX includes I2S and UART, the USB7016/KDX substitute provides GPIO, I2C, and SPI interfaces, which cover the primary control and communication requirements.

USB Standard Support: The substitute must support USB 3.x generation standards. The USB7056/KDX operates at USB 3.1 Gen1, while the USB7016/KDX supports USB 3.2, ensuring backward compatibility and forward capability.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and REACH unaffected status to meet current environmental and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The USB7016/KDX is the primary substitute for the obsolete USB7056/KDX based on the following engineering criteria:

Product Status Alignment: The USB7016/KDX maintains active product status with current manufacturing support, addressing the obsolescence of the USB7056/KDX. This ensures long-term availability and supply chain continuity.

Package and Pinout Compatibility: Both devices utilize the identical 100-VQFN (12x12) package with exposed pad, enabling direct PCB layout reuse without redesign.

Regulatory and Compliance Continuity: Both parts maintain ROHS3 compliance and REACH unaffected status. The USB7016/KDX additionally carries AEC-Q100 automotive qualification, providing enhanced reliability assurance for applications requiring automotive-grade components.

Interface Protocol Coverage: The USB7016/KDX provides GPIO, I2C, and SPI interfaces, which represent the core control and communication protocols. While the USB7056/KDX includes I2S and UART, these are supplementary interfaces not present in the substitute. Applications dependent exclusively on I2S or UART functionality may require alternative solutions.

USB Standard Progression: The USB7016/KDX supports USB 2.0 and USB 3.2, providing backward compatibility with USB 3.1 Gen1 specifications while enabling forward compatibility with USB 3.2 infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the USB7016/KDX directly replace the USB7056/KDX without PCB modifications?

A: Yes, the USB7016/KDX uses the identical 100-VQFN (12x12) package with exposed pad. PCB layout compatibility is maintained. However, firmware and driver updates may be required to accommodate differences in interface capabilities and electrical specifications.

Q: What interface protocols are lost when substituting to the USB7016/KDX?

A: The USB7056/KDX includes I2S and UART interfaces that are not present in the USB7016/KDX. Applications relying exclusively on these protocols require alternative component selection or system redesign.

Q: Are there supply chain advantages to using the USB7016/KDX?

A: Yes. The USB7016/KDX maintains active product status with current manufacturing support, whereas the USB7056/KDX is obsolete. This ensures consistent availability and reduces long-term supply risk.

Q: Does the USB7016/KDX meet automotive qualification requirements?

A: The USB7016/KDX carries AEC-Q100 automotive qualification and automotive-grade designation. The USB7056/KDX does not specify automotive qualification. Applications requiring automotive-grade components benefit from this upgrade.

Q: What are the voltage supply differences between these parts?

A: The USB7016/KDX specifies supply voltage ranges of 1.08V ~ 1.32V and 3V ~ 3.6V with operating temperature range 0°C ~ 70°C. The USB7056/KDX does not provide voltage or temperature specifications in available documentation. System power supply design must accommodate the USB7016/KDX specifications.

Q: Is the USB7016/KDX backward compatible with USB 3.1 Gen1 systems?

A: Yes. The USB7016/KDX supports USB 2.0 and USB 3.2 standards, providing backward compatibility with USB 3.1 Gen1 infrastructure while enabling forward compatibility with USB 3.2 systems.