USB5916-I/KD Equivalent & Substitute Parts

Part Overview

The USB5916-I/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 across a supply voltage range of 1.2V and 3.3V, housed in a 100-VQFN (12x12) package with exposed pad. The device is classified as Obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

USB5916-I/KD

Microchip TechnologyIn Stock: 968USB5916-I/KD Datasheet

Current PartRFQ

USB5916C-I/KD

Microchip TechnologyIn Stock: 908USB5916C-I/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB5916-I/KD 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 to ensure PCB layout and thermal management compatibility.

Functional Equivalence: The substitute must support USB Hub Controller functionality with USB 3.1 standards compliance.

Interface Protocol Support: The substitute must support I2C and SPI interfaces as minimum requirements for control and configuration.

Supply Voltage Range: The substitute must operate within overlapping or compatible voltage supply ranges to ensure power delivery compatibility.

Operating Temperature Range: The substitute must maintain the -40°C ~ 85°C operating temperature specification.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and equivalent MSL ratings for manufacturing and storage conditions.

The USB5916C-I/KD qualifies as a direct substitute based on these parameters. It maintains identical package specifications, supports enhanced interface protocols (I2C, SMBus, SPI, UART), operates across compatible voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V), and retains all required compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The USB5916C-I/KD is the primary substitute for the obsolete USB5916-I/KD. Selection is justified by the following factors:

Product Status: The USB5916C-I/KD maintains Active product status, ensuring continued availability, manufacturing support, and technical documentation from Microchip Technology. The original USB5916-I/KD is Obsolete, creating supply chain risk and limiting access to updated firmware or design resources.

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with current manufacturing processes and storage requirements.

Package Equivalence: Identical 100-VQFN (12x12) package specifications guarantee direct PCB layout compatibility without redesign requirements.

Interface Enhancement: The USB5916C-I/KD provides expanded interface support (SMBus, UART) beyond the original I2C and SPI protocols, offering greater flexibility for system integration without compromising existing functionality.

Voltage Supply Compatibility: The substitute operates across voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V) that encompass the original specifications (1.2V, 3.3V), ensuring power delivery compatibility.

Frequently Asked Questions (FAQ)

Q: Can the USB5916C-I/KD be used as a direct replacement for the USB5916-I/KD without PCB modifications?

A: Yes. Both parts use identical 100-VQFN (12x12) package specifications with exposed pad. Pin-to-pin compatibility and thermal characteristics are equivalent, eliminating the need for PCB layout changes.

Q: What are the key differences between the USB5916-I/KD and USB5916C-I/KD?

A: The primary differences are product status (Obsolete vs. Active), expanded interface protocol support (SMBus and UART added in the substitute), and refined voltage supply ranges. Both maintain USB 3.1 standards compliance and identical package specifications.

Q: Are there compatibility concerns with the expanded interface protocols in the USB5916C-I/KD?

A: No. The USB5916C-I/KD maintains full support for I2C and SPI protocols required by the original design. Additional protocols (SMBus, UART) are supplementary and do not affect existing system functionality.

Q: Does the USB5916C-I/KD support the same operating temperature range?

A: Yes. Both parts operate across -40°C ~ 85°C, ensuring thermal compatibility across all specified operating conditions.

Q: What is the impact of the voltage supply range difference?

A: The USB5916C-I/KD operates across 1.08V ~ 1.32V and 3V ~ 3.6V, which encompasses the original 1.2V and 3.3V specifications. This expanded range provides greater design flexibility while maintaining compatibility with existing power delivery systems.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the USB5916-I/KD and USB5916C-I/KD maintain ROHS3 compliance with identical MSL ratings of 3 (168 Hours), ensuring compatibility with current manufacturing and storage standards.