USB5826/KD Equivalent & Substitute Parts

Part Overview

The USB5826/KD is a USB Hub Controller IC manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C and SPI communication protocols. This component operates in the 100-VQFN (12x12) package format and supports dual supply voltages of 1.2V and 3.3V. The product is currently classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

USB5826/KD

Microchip TechnologyIn Stock: 1113USB5826/KD Datasheet

Current PartRFQ

USB5826C/KD

Microchip TechnologyIn Stock: 845USB5826C/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USB5826/KD is determined by the following critical parameters:

• Package compatibility: 100-VQFN (12x12) with exposed pad
• USB protocol support: USB 3.1 capability
• Interface protocols: I2C and SPI support
• Supply voltage ranges: Compatibility with 1.2V and 3.3V supplies
• Operating temperature range: 0°C ~ 70°C
• Regulatory compliance: ROHS3 and REACH status alignment

The USB5826C/KD qualifies as a direct substitute based on identical package specifications, matching operating temperature range, equivalent regulatory compliance, and enhanced interface protocol support that includes the required I2C and SPI protocols.

Parameter Comparison

Engineering Selection Recommendations

The USB5826C/KD is the manufacturer-recommended substitute for the obsolete USB5826/KD. Both components share identical physical packaging, thermal operating range, and regulatory compliance certifications. The USB5826C/KD maintains active product status with Microchip Technology, ensuring continued availability and technical support. The substitute part provides expanded interface protocol support (SMBus and UART in addition to I2C and SPI) and dual USB standard compatibility (USB 2.0 and USB 3.1), offering enhanced functionality within the same form factor and thermal envelope.

Frequently Asked Questions (FAQ)

Q: Can the USB5826C/KD be used as a direct replacement for the USB5826/KD in existing designs?

A: Yes. Both components utilize the 100-VQFN (12x12) package with identical pinout and exposed pad configuration. Operating temperature ranges, supply voltage requirements, and regulatory compliance are equivalent. The USB5826C/KD provides additional interface protocol options without compromising compatibility with existing I2C and SPI implementations.

Q: What is the primary difference between these two hub controller variants?

A: The USB5826/KD supports USB 3.1 with I2C and SPI interfaces. The USB5826C/KD extends this capability to include USB 2.0 support and adds SMBus and UART interface protocols. Both maintain the same package footprint and thermal specifications.

Q: Are there supply voltage compatibility considerations?

A: The USB5826/KD operates at 1.2V and 3.3V. The USB5826C/KD specifies voltage ranges of 1.08V ~ 1.32V and 3V ~ 3.6V. These ranges encompass the nominal operating points of the original part, ensuring compatibility with existing power supply designs.

Q: What is the significance of the product status change from Obsolete to Active?

A: The USB5826C/KD maintains active production status with Microchip Technology, ensuring long-term component availability, technical documentation support, and supply chain reliability. The USB5826/KD, being obsolete, has limited availability and no ongoing manufacturer support.

Q: Are moisture sensitivity and RoHS compliance identical between these parts?

A: Yes. Both components carry MSL 3 (168 Hours) moisture sensitivity classification and ROHS3 compliance certification, requiring identical handling and storage protocols.