USB5742BT/2GC01 Equivalent & Substitute Parts

Part Overview

The USB5742BT/2GC01 is an active USB Hub Controller manufactured by Microchip Technology, designed to manage USB 2.0 and USB 3.2 protocol communications. This interface IC operates with dual voltage supply ranges (1.08V–1.32V and 3V–3.6V) and integrates SMBus and SPI interfaces for system control and configuration. The device is packaged in a 56-VQFN (7x7) form factor with exposed pad and operates across the industrial temperature range of 0°C to 70°C. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or compliance requirements while maintaining functional compatibility.

Substiute Parts

USB5742BT/2GC01

Microchip TechnologyIn Stock: 1135USB5742BT/2GC01 Datasheet

Current PartRFQ

USB5742B/2GX01

Microchip TechnologyIn Stock: 1738USB5742B/2GX01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the USB5742BT/2GC01 is determined by strict equivalence across the following critical parameters:

Functional Equivalence: The substitute part must perform the identical Hub Controller function for USB 2.0 and USB 3.2 protocol management.

Electrical Compatibility: The substitute must support the same dual voltage supply ranges (1.08V–1.32V and 3V–3.6V) and operate within the specified temperature range of 0°C–70°C.

Interface Compatibility: The substitute must provide both SMBus and SPI interfaces to ensure system integration without modification.

Package Compatibility: The substitute must use the identical 56-VQFN (7x7) package with exposed pad to ensure PCB layout compatibility and thermal performance equivalence.

Manufacturer Consistency: All substitutes are sourced from Microchip Technology to ensure design validation and support continuity.

Product Status: Only active products are listed as substitutes to ensure ongoing availability and manufacturer support.

The USB5742B/2GX01 meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the USB5742BT/2GC01 and USB5742B/2GX01 are active products from Microchip Technology with identical electrical, functional, and package specifications. Selection between these parts is based on packaging and compliance requirements:

USB5742BT/2GC01 is supplied in tape-and-reel packaging and is suitable for standard production environments where standard moisture sensitivity handling applies.

USB5742B/2GX01 is supplied in bulk packaging and carries RoHS3 compliance certification with Moisture Sensitivity Level (MSL) 3 (168 Hours) specification. This part includes additional regulatory documentation including ECCN (EAR99) and HTSUS (8542.39.0001) classifications, making it suitable for applications requiring explicit compliance documentation and extended moisture exposure windows.

Both parts maintain REACH Unaffected status, confirming compliance with European chemical regulations. Selection should be based on supply chain requirements, packaging preferences, and regulatory documentation needs for the target application.

Frequently Asked Questions (FAQ)

Q: Can the USB5742B/2GX01 directly replace the USB5742BT/2GC01 on an existing PCB design?

A: Yes. Both parts share identical electrical specifications, interface requirements, and package geometry (56-VQFN 7x7 with exposed pad). No PCB layout modifications are required for substitution.

Q: What is the difference between the two part numbers?

A: The primary differences are packaging format (tape-and-reel versus bulk) and compliance documentation. The USB5742B/2GX01 includes RoHS3 compliance certification and explicit Moisture Sensitivity Level (MSL) rating. Electrical and functional specifications are identical.

Q: Are both parts suitable for high-reliability applications?

A: Both parts are active products from Microchip Technology with identical operating specifications. Selection for high-reliability applications should be based on compliance certifications and supply chain documentation requirements. The USB5742B/2GX01 provides explicit RoHS3 and MSL certifications suitable for regulated environments.

Q: What is the significance of the 56-VQFN (7x7) package with exposed pad?

A: This package provides a 7mm × 7mm footprint with 56 pins and an exposed thermal pad for enhanced heat dissipation. The exposed pad is critical for thermal management in high-speed USB applications. Both substitute parts use identical package geometry, ensuring thermal performance equivalence.

Q: Do both parts support the same USB standards?

A: Yes. Both the USB5742BT/2GC01 and USB5742B/2GX01 support USB 2.0 and USB 3.2 standards with identical SMBus and SPI interface capabilities.

Q: What voltage supplies are required for operation?

A: Both parts require dual voltage supplies: 1.08V–1.32V (core logic) and 3V–3.6V (I/O). System design must provide both supply rails within these ranges for proper device operation.

Q: Is the operating temperature range identical for both parts?

A: Yes. Both parts operate across 0°C to 70°C (TA), suitable for industrial and commercial temperature environments.