USB5744T/2GD01 Equivalent & Substitute Parts

Part Overview

The USB5744T/2GD01 is a USB Hub Controller IC manufactured by Microchip Technology, designed to manage USB 2.0 and USB 3.2 serial communication with SMBus and SPI interface support. The device is packaged in a 56-VQFN (7x7) form factor with exposed pad and operates across a temperature range of 0°C to 70°C.

The USB5744T/2GD01 carries an Obsolete product status, indicating that this component is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing manufacturing or repair operations.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Category	Interface
Function	Hub Controller
Protocol	USB
Standards Supported	USB 2.0, USB 3.2
Interface Types	Serial, SMBus, SPI
Voltage Supply Range	1.08V ~ 1.32V, 3V ~ 3.6V
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	56-VFQFN Exposed Pad
Supplier Device Package	56-VQFN (7x7)

Substitute Part Grouping Explanation

Substitution of the USB5744T/2GD01 is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

Function: Hub Controller
Protocol: USB
Standards: USB 2.0 and USB 3.2 support
Interface: Serial, SMBus, and SPI
Package: 56-VQFN (7x7) with exposed pad
Voltage Supply: 1.08V ~ 1.32V and 3V ~ 3.6V dual supply ranges
Operating Temperature: 0°C ~ 70°C

All substitute parts listed maintain identical electrical specifications and mechanical packaging requirements. Substitution is valid only when all parameters match exactly. The primary distinction among substitute parts is product status and availability.

Parameter Comparison

Parameter	USB5744T/2GD01	USB5744T/2GD02	USB5744/2GD02	USB5744/2GTB
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Function	Hub Controller	Hub Controller	Hub Controller	Hub Controller
Protocol	USB	USB	USB	USB
Standards	USB 2.0, USB 3.2	USB 2.0, USB 3.2	USB 2.0, USB 3.2	USB 2.0, USB 3.2
Interface	Serial, SMBus, SPI	Serial, SMBus, SPI	Serial, SMBus, SPI	Serial, SMBus, SPI
Voltage Supply	1.08V ~ 1.32V, 3V ~ 3.6V	1.08V ~ 1.32V, 3V ~ 3.6V	1.08V ~ 1.32V, 3V ~ 3.6V	1.08V ~ 1.32V, 3V ~ 3.6V
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	56-VFQFN Exposed Pad	56-VFQFN Exposed Pad	56-VFQFN Exposed Pad	56-VFQFN Exposed Pad
Supplier Device Package	56-VQFN (7x7)	56-VQFN (7x7)	56-VQFN (7x7)	56-VQFN (7x7)
Product Status	Obsolete	Active	Active	Active
REACH Status	Not Specified	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: USB5744T/2GD02

The USB5744T/2GD02 is the manufacturer-recommended substitute for the obsolete USB5744T/2GD01. This part maintains identical electrical and mechanical specifications while carrying Active product status. The USB5744T/2GD02 holds REACH Unaffected compliance certification, ensuring regulatory alignment for new designs and manufacturing operations.

Secondary Equivalents: USB5744/2GD02 and USB5744/2GTB

Both USB5744/2GD02 and USB5744/2GTB are parametric equivalents that satisfy all electrical and mechanical requirements. These parts are Active products with REACH Unaffected status. Selection between these options and the primary substitute should be based on inventory availability and procurement lead times, as all three parts are functionally interchangeable within the specified parameter constraints.

All substitute parts are suitable for direct replacement in applications currently utilizing the USB5744T/2GD01, provided that the design accommodates the 56-VQFN (7x7) package footprint and dual supply voltage configuration.

Frequently Asked Questions (FAQ)

Q: Can the USB5744T/2GD02 be used as a direct replacement for the USB5744T/2GD01?

A: Yes. The USB5744T/2GD02 maintains identical electrical specifications, interface protocols, and package configuration. The part is electrically and mechanically compatible for direct substitution.

Q: What is the difference between USB5744T/2GD02, USB5744/2GD02, and USB5744/2GTB?

A: All three parts are parametric equivalents with identical electrical and mechanical specifications. The differences in part numbering reflect manufacturing variants or product line designations. All three are Active products with REACH Unaffected status.

Q: Why is the USB5744T/2GD01 marked as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by Microchip Technology. The substitute parts listed represent the current active alternatives that maintain full functional and electrical equivalence.

Q: Are there any compliance or regulatory differences between the main part and substitutes?

A: The substitute parts carry REACH Unaffected certification, which is not specified for the obsolete USB5744T/2GD01. This certification ensures compliance with current environmental and regulatory requirements for new manufacturing operations.

Q: Does the 56-VQFN (7x7) package remain the same across all parts?

A: Yes. All parts, including the main part and all substitutes, use the identical 56-VQFN (7x7) package with exposed pad. PCB footprint and layout requirements are identical.

Q: What supply voltage levels are supported by these USB Hub Controller parts?

A: All parts support dual supply voltage ranges: 1.08V to 1.32V and 3V to 3.6V. Design circuits must accommodate both supply rails as specified.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary among the three active substitutes. USB5744/2GD02 has 1066 units in stock, USB5744/2GTB has 890 units, and USB5744T/2GD02 has 765 units. Procurement decisions should account for project timelines and supply requirements.

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