USB5816T/KD Equivalent & Substitute Parts

Part Overview

The USB5816T/KD is a USB Hub Controller IC manufactured by Microchip Technology, designed for USB 3.1 applications with I2C and SPI interface capabilities in a 100-VQFN (12x12) package. This part is classified as Obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The substitute part USB5816CT/KD provides functional equivalence while maintaining Active product status and improved supply availability.

Substiute Parts

USB5816T/KD

Microchip TechnologyIn Stock: 864USB5816T/KD Datasheet

Current PartRFQ

USB5816CT/KD

Microchip TechnologyIn Stock: 2118USB5816CT/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB5816T/KD is determined by strict equivalence across the following critical parameters:

• Functional Equivalence: Hub Controller function with USB 3.1 protocol support
• Interface Compatibility: I2C and SPI interface requirements
• Package Compatibility: 100-VFQFN Exposed Pad (100-VQFN 12x12) form factor
• Electrical Specifications: Supply voltage ranges and operating temperature
• Compliance Standards: RoHS3 and REACH compliance status
• Moisture Sensitivity: MSL 3 classification

The USB5816CT/KD qualifies as a direct substitute based on identical functional specifications, package geometry, and compliance certifications. The primary distinction is product status transition from Obsolete to Active, with enhanced supply availability and refined voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

The USB5816CT/KD is the recommended substitute for the obsolete USB5816T/KD based on the following engineering criteria:

Product Status: The USB5816CT/KD maintains Active product status with established supply chain continuity, whereas the USB5816T/KD is classified as Obsolete. This transition ensures long-term availability and manufacturing support.

Compliance Certification: Both parts maintain identical RoHS3 and REACH compliance status, ensuring regulatory equivalence for applications subject to environmental and hazardous substance restrictions.

Electrical Specifications: The USB5816CT/KD provides expanded voltage supply ranges (1.08V ~ 1.32V and 3V ~ 3.6V) compared to the nominal specifications of the USB5816T/KD (1.2V and 3.3V). This enhanced specification range ensures compatibility with existing designs while providing additional operational margin.

Package and Interface Integrity: Identical package geometry (100-VQFN 12x12), functional classification, and interface protocols (I2C, SPI) ensure direct pin-for-pin and functional compatibility without circuit redesign.

Supply Availability: The USB5816CT/KD demonstrates significantly higher inventory availability (2100 Pcs) compared to the USB5816T/KD (782 Pcs), supporting production continuity and procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can USB5816CT/KD be used as a direct replacement for USB5816T/KD in existing designs?

A: Yes. The USB5816CT/KD is functionally and electrically equivalent with identical package geometry, interface protocols, and compliance certifications. No circuit modifications are required for substitution.

Q: What is the primary reason for substituting the USB5816T/KD?

A: The USB5816T/KD is classified as Obsolete. The USB5816CT/KD provides equivalent functionality with Active product status, ensuring continued manufacturing support and supply chain availability.

Q: Are there differences in voltage specifications between these parts?

A: The USB5816CT/KD specifies expanded voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V) compared to the USB5816T/KD nominal values (1.2V, 3.3V). Both specifications are compatible with standard USB 3.1 hub controller applications. The expanded range of the USB5816CT/KD provides additional operational margin.

Q: Does packaging format affect compatibility?

A: Packaging format (Bulk vs. Tape & Reel) does not affect electrical or functional compatibility. The USB5816CT/KD is supplied in Tape & Reel format, which is standard for automated assembly processes. Both formats contain identical die and package specifications.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both parts are classified as MSL 3 (168 Hours), requiring identical storage, handling, and reflow procedures. No changes to manufacturing processes are necessary.

Q: What compliance certifications apply to the USB5816CT/KD?

A: The USB5816CT/KD maintains ROHS3 compliance and REACH Unaffected status, identical to the USB5816T/KD. Both parts are suitable for applications subject to environmental and hazardous substance regulations.