TUSB8044RGCT USB 3.1 Hub Controller Equivalent & Substitute Parts

Part Overview

The TUSB8044RGCT is a USB 3.1 hub controller IC manufactured by Texas Instruments, designed for interface applications requiring I2C protocol support. This device operates across dual voltage supplies (1.1V and 3.3V) and is packaged in a 64-VQFN (9x9) configuration with exposed pad. The part carries a "Not For New Designs" product status, necessitating identification of equivalent and substitute components for ongoing production and new design implementations.

Substiute Parts

TUSB8044RGCT

Texas InstrumentsIn Stock: 1604TUSB8044RGCT Datasheet

Current PartRFQ

TUSB8044ARGCT

Texas InstrumentsIn Stock: 1259TUSB8044ARGCT Datasheet

DirectRFQ

TUSB8044RGCR

Texas InstrumentsIn Stock: 2898TUSB8044RGCR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TUSB8044RGCT is determined by the following critical parameters:

Primary Substitution Criteria:

• Manufacturer: Texas Instruments (TUSB8044 series)
• Function: Hub Controller
• Standards: USB 3.1
• Package: 64-VQFN (9x9) Exposed Pad
• Interface: I2C (minimum requirement)
• Voltage Supply Compatibility: Overlapping or equivalent supply voltage ranges
• Operating Temperature Range: 0°C ~ 70°C
• RoHS Compliance: ROHS3 Compliant

Identified Substitute Categories:

1. Direct Manufacturer Equivalent (TUSB8044ARGCT): Maintains identical package, function, and standards with enhanced voltage supply specification (0.99V ~ 1.26V, 3V ~ 3.6V) and extended interface support (I2C, SMBus). Product status is Active, making it suitable for new designs.

2. Parametric Equivalent (TUSB8044RGCR): Shares identical electrical specifications, package configuration, and functional parameters with the main part. Differs only in packaging reel configuration (RGCR vs. RGCT). Product status is "Not For New Designs," matching the main part.

Parameter Comparison

Engineering Selection Recommendations

For New Design Implementation: TUSB8044ARGCT is the recommended selection. This part maintains full functional and electrical compatibility with TUSB8044RGCT while offering Active product status, ensuring long-term availability and manufacturer support. The extended voltage supply range (0.99V ~ 1.26V, 3V ~ 3.6V) provides additional design flexibility compared to the fixed supply voltages of the main part. SMBus interface support adds protocol versatility without compromising I2C compatibility.

For Existing Production Continuity: TUSB8044RGCR serves as a direct parametric substitute, maintaining identical electrical specifications and functional performance. The distinction between RGCT and RGCR designations reflects reel configuration only, with no impact on component functionality or electrical characteristics. Both parts carry "Not For New Designs" status and are suitable for sustaining production of existing designs.

Compliance Considerations: All identified substitutes maintain ROHS3 compliance and identical MSL ratings (3, 168 Hours), ensuring compatibility with standard manufacturing and storage protocols. No additional qualification or testing is required based on regulatory compliance parameters.

Frequently Asked Questions (FAQ)

Q: Can TUSB8044ARGCT replace TUSB8044RGCT in existing designs? A: Yes. TUSB8044ARGCT is electrically and functionally compatible with TUSB8044RGCT. The voltage supply range of TUSB8044ARGCT (0.99V ~ 1.26V, 3V ~ 3.6V) encompasses the fixed supplies of TUSB8044RGCT (1.1V, 3.3V). Both devices support I2C interface and USB 3.1 standards in identical 64-VQFN packages.

Q: What is the difference between TUSB8044RGCT and TUSB8044RGCR? A: These parts are parametrically identical. The suffix difference (CT vs. CR) indicates reel configuration in the Tape & Reel packaging. No functional or electrical differences exist between these designations.

Q: Why is TUSB8044RGCT marked "Not For New Designs"? A: This product status indicates the manufacturer is not recommending this part for new design implementations. TUSB8044ARGCT, with Active status, is the preferred choice for new applications requiring equivalent functionality.

Q: Are there any interface compatibility concerns when substituting these parts? A: No. All substitute parts maintain I2C interface support as a minimum. TUSB8044ARGCT additionally supports SMBus, which is backward compatible with I2C protocol implementations.

Q: Do these parts require different handling or storage procedures? A: No. All parts share identical MSL ratings (3, 168 Hours) and RoHS compliance status, requiring standard ESD protection and moisture control procedures consistent with industry practice for 64-pin QFN packages.