USB5744/2GD01 Equivalent & Substitute Parts

Part Overview

The USB5744/2GD01 is a USB Hub Controller integrated circuit 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) configuration with an exposed pad and operates across a temperature range of 0°C to 70°C.

The USB5744/2GD01 carries an Obsolete product status, which necessitates identification of active equivalent and substitute components to maintain design continuity and ensure long-term supply chain reliability. All substitute parts listed maintain electrical and mechanical compatibility with the original specification.

Key Parameters

Parameter	Specification
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 Type	56-VQFN (7x7) Exposed Pad

Substitute Part Grouping Explanation

Substitute parts for the USB5744/2GD01 are qualified based on strict electrical and mechanical parameter alignment. All substitute components maintain identical specifications across the following critical parameters:

USB protocol standards (USB 2.0 and USB 3.2 support)
Interface configuration (Serial, SMBus, SPI)
Supply voltage operating ranges (1.08V ~ 1.32V and 3V ~ 3.6V)
Operating temperature range (0°C ~ 70°C)
Physical package format (56-VQFN with 7x7 dimensions and exposed pad)
Hub controller functionality

The substitute parts are differentiated by product status (Active vs. Obsolete) and manufacturing date codes, which are reflected in the part number suffixes. All listed substitutes are currently in active production status, ensuring ongoing availability and supply chain continuity.

Parameter Comparison

Parameter	USB5744/2GD01 (Original)	USB5744/2GD02 (MFR Recommended)	USB5744/2GTB (Parametric Equivalent)	USB5744T/2GD02 (Parametric Equivalent)
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 Types	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-VQFN (7x7) Exposed Pad	56-VQFN (7x7) Exposed Pad	56-VQFN (7x7) Exposed Pad	56-VQFN (7x7) Exposed Pad
Product Status	Obsolete	Active	Active	Active
REACH Status	Not Specified	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: USB5744/2GD02

The USB5744/2GD02 is designated as the manufacturer-recommended substitute for the obsolete USB5744/2GD01. This part maintains complete electrical and mechanical compatibility while offering Active product status. The USB5744/2GD02 carries REACH Unaffected compliance certification, supporting regulatory requirements for new designs and production runs.

Secondary Equivalents: USB5744/2GTB and USB5744T/2GD02

Both USB5744/2GTB and USB5744T/2GD02 are parametric equivalents that satisfy all electrical and mechanical requirements of the original USB5744/2GD01. These parts are in Active production status and carry REACH Unaffected compliance. The part number variations reflect manufacturing date codes and internal revision levels that do not affect functional performance or pin compatibility.

Selection among the three active substitutes should be based on current inventory availability and supply chain lead times, as all three components are electrically and mechanically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the USB5744/2GD02 be used as a direct replacement for the USB5744/2GD01?

A: Yes. The USB5744/2GD02 maintains identical electrical specifications, interface configuration, supply voltage ranges, operating temperature range, and physical package format. The part is pin-compatible and functionally equivalent.

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

A: All three parts are parametric equivalents with identical electrical and mechanical specifications. The differences in part number suffixes reflect manufacturing date codes and internal revision designations. No functional or performance differences exist between these variants.

Q: Are all substitute parts in the same physical package?

A: Yes. All substitute parts use the 56-VQFN (7x7) package with exposed pad configuration, ensuring identical PCB footprint and mounting requirements.

Q: What is the significance of the Obsolete status for the USB5744/2GD01?

A: Obsolete status indicates that the manufacturer has discontinued production of this part number. Substitution with an Active product status part ensures continued availability for new production and design revisions.

Q: Do the substitute parts support the same USB standards as the original?

A: Yes. All substitute parts support USB 2.0 and USB 3.2 standards with identical Serial, SMBus, and SPI interface capabilities.

Q: Are there any compliance differences between the original and substitute parts?

A: The substitute parts carry REACH Unaffected certification, which is a regulatory compliance advantage. The original part's compliance status was not specified in the available documentation.

Q: Can I use any of the three substitute parts interchangeably in my design?

A: Yes. USB5744/2GD02, USB5744/2GTB, and USB5744T/2GD02 are electrically and mechanically interchangeable. Selection should be based on current inventory availability and supply chain considerations.

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