USB5906T-I/KD Equivalent & Substitute Parts

Part Overview

The USB5906T-I/KD is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C and SPI communication protocols. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

USB5906T-I/KD

Microchip TechnologyIn Stock: 717USB5906T-I/KD Datasheet

Current PartRFQ

USB5906CT-I/KD

Microchip TechnologyIn Stock: 1112USB5906CT-I/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB5906T-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 configuration to ensure mechanical and thermal compatibility.

Functional Equivalence: The substitute must perform USB hub controller functions and support USB 3.1 standard to maintain protocol compatibility.

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

Electrical Specifications: Supply voltage ranges and operating temperature must be compatible with the application requirements.

Compliance & Certification: RoHS3 compliance and REACH unaffected status must be maintained for regulatory adherence.

The identified substitute USB5906CT-I/KD meets all these criteria while offering active product status and expanded interface capabilities.

Parameter Comparison

Engineering Selection Recommendations

The USB5906CT-I/KD is the manufacturer-recommended substitute for the obsolete USB5906T-I/KD. Both devices share identical package specifications, thermal characteristics, and compliance certifications. The substitute maintains full backward compatibility with the primary part while offering active product status, ensuring long-term availability and supply chain continuity.

The USB5906CT-I/KD provides expanded interface capabilities including SMBus and UART protocols in addition to the required I2C and SPI interfaces. The voltage supply range of the substitute encompasses the main part specifications, confirming electrical compatibility. Both devices operate across the identical temperature range and maintain ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can USB5906CT-I/KD directly replace USB5906T-I/KD in existing designs?

A: Yes. Both parts use identical 100-VQFN (12x12) packages with exposed pads, operate across the same temperature range, and maintain equivalent compliance certifications. The substitute supports all required interfaces (I2C, SPI) and USB 3.1 standard.

Q: What is the primary advantage of selecting USB5906CT-I/KD?

A: The substitute maintains active product status, ensuring ongoing availability and supply chain reliability. The obsolete status of the main part makes the substitute the appropriate selection for new designs and component procurement.

Q: Are there differences in interface capabilities between these parts?

A: The USB5906CT-I/KD supports additional interfaces (SMBus, UART) beyond the I2C and SPI interfaces of the main part. Designs utilizing only I2C and SPI will experience no functional difference.

Q: Do the voltage supply specifications differ?

A: The USB5906CT-I/KD specifies voltage ranges (1.08V ~ 1.32V, 3V ~ 3.6V) while the main part lists discrete values (1.2V, 3.3V). The substitute ranges encompass the main part specifications, confirming compatibility.

Q: Are packaging and thermal characteristics identical?

A: Yes. Both devices use 100-VQFN (12x12) packages with exposed pads, identical moisture sensitivity levels (MSL 3, 168 Hours), and operate across -40°C to 85°C.