USB5744T/2GX01 Equivalent & Substitute Parts

Part Overview

The USB5744T/2GX01 is a USB Hub Controller IC manufactured by Microchip Technology, designed for USB 2.0 and USB 3.2 interface applications in a 56-VQFN (7x7) package. This part supports dual supply voltages (1.2V and 3.3V) and operates across the industrial temperature range of 0°C to 70°C. The USB5744T/2GX01 is currently classified as Obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Substiute Parts

USB5744T/2GX01

Microchip TechnologyIn Stock: 4443USB5744T/2GX01 Datasheet

Current PartRFQ

USB5744BT/2GX01

Microchip TechnologyIn Stock: 3972USB5744BT/2GX01 Datasheet

MFR RecommendedRFQ

USB5744T/2G

Microchip TechnologyIn Stock: 3203USB5744T/2G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the USB5744T/2GX01 are qualified based on the following critical parameters:

• Identical package type: 56-VQFN (7x7) Exposed Pad
• Matching functional classification: USB Hub Controller
• Equivalent protocol support: USB 2.0 and USB 3.2
• Compatible supply voltage ranges: 1.2V and 3.3V nominal
• Identical operating temperature range: 0°C to 70°C
• Equivalent RoHS and environmental compliance status

Two substitute parts meet these criteria and are grouped by their relationship to the main part:

MFR Recommended Substitute: USB5744BT/2GX01 — Manufacturer-recommended alternative with extended interface capabilities (Serial, SMBus, SPI) and Active product status.

Parametric Equivalent: USB5744T/2G — Direct parametric match with identical electrical and thermal specifications, Active product status, and standard USB interface.

Parameter Comparison

Engineering Selection Recommendations

USB5744BT/2GX01 is the manufacturer-recommended substitute. This part maintains full electrical and thermal compatibility while offering extended interface options (Serial, SMBus, SPI) beyond the base USB interface. The supply voltage range is slightly broader (1.08V ~ 1.32V, 3V ~ 3.6V) compared to the nominal values of the main part. Active product status ensures long-term availability and manufacturing support. Packaging is supplied in Tape & Reel format.

USB5744T/2G is the parametric equivalent substitute. This part provides identical electrical specifications, thermal performance, and interface characteristics to the USB5744T/2GX01. It maintains the same supply voltage levels (1.2V, 3.3V) and operating temperature range. Active product status guarantees continued supply. Packaging is available in Cut Tape and Digi-Reel formats, matching the original part's packaging options.

Both substitutes maintain ROHS3 compliance and MSL rating equivalence. Selection between the two depends on design requirements for additional interface protocols and packaging format preferences.

Frequently Asked Questions (FAQ)

Q: Can USB5744BT/2GX01 be used as a direct replacement for USB5744T/2GX01?

A: Yes. Both parts share identical package geometry (56-VQFN 7x7), functional classification (USB Hub Controller), and core protocol support (USB 2.0, USB 3.2). The USB5744BT/2GX01 includes additional interface options (Serial, SMBus, SPI) and operates within a broader supply voltage range, making it fully compatible at the electrical and mechanical level.

Q: What is the difference between USB5744T/2G and USB5744BT/2GX01?

A: USB5744T/2G provides parametric equivalence with identical nominal supply voltages (1.2V, 3.3V) and USB-only interface. USB5744BT/2GX01 offers extended interface capabilities (Serial, SMBus, SPI) and broader voltage tolerance (1.08V ~ 1.32V, 3V ~ 3.6V). Both are Active products with identical thermal and package specifications.

Q: Are there packaging format differences between these substitutes?

A: Yes. USB5744T/2GX01 and USB5744T/2G are supplied in Cut Tape (CT) and Digi-Reel® formats. USB5744BT/2GX01 is supplied in Tape & Reel (TR) format. Packaging format selection depends on production volume and assembly line requirements.

Q: Do all three parts meet the same compliance standards?

A: Yes. USB5744T/2GX01, USB5744BT/2GX01, and USB5744T/2G are all ROHS3 compliant with identical MSL ratings (3, 168 Hours) and REACH unaffected status.

Q: Why is the original USB5744T/2GX01 marked as Obsolete?

A: Obsolete status indicates the part is no longer in active production. USB5744T/2G and USB5744BT/2GX01 are Active alternatives that provide equivalent or enhanced functionality with guaranteed long-term availability.