TUSB7340RKMT USB 3.0 Host Controller Equivalent & Substitute Parts

Part Overview

The TUSB7340RKMT is a USB 3.0 Host Controller IC manufactured by Texas Instruments, designed for USB and PCIe interface applications. This device is packaged in a 100-WQFN form factor with dual rows and exposed pad configuration. The part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line. Due to this status and potential supply constraints, identifying equivalent and substitute parts is necessary for ongoing production support and design continuity.

Substiute Parts

TUSB7340RKMT

Texas InstrumentsIn Stock: 928TUSB7340RKMT Datasheet

Current PartRFQ

TUSB8041RGCT

Texas InstrumentsIn Stock: 1964TUSB8041RGCT Datasheet

MFR RecommendedRFQ

TUSB7320RKMR

Texas InstrumentsIn Stock: 9097TUSB7320RKMR Datasheet

Parametric EquivalentRFQ

TUSB7320RKMT

Texas InstrumentsIn Stock: 2211TUSB7320RKMT Datasheet

Parametric EquivalentRFQ

TUSB7340RKMR

Texas InstrumentsIn Stock: 1848TUSB7340RKMR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TUSB7340RKMT is determined by the following critical parameters:

Parametric Equivalents maintain identical or functionally compatible specifications across all key electrical and mechanical attributes:

• USB 3.0 protocol and Host Controller function
• USB and PCIe interface support
• 100-WQFN package configuration (9x9mm)
• Supply voltage range: 1.1V, 3.3V
• Operating temperature: 0°C ~ 70°C
• RoHS3 compliance and MSL 3 rating

Manufacturer Recommended Substitute differs in functional classification and package density but maintains USB 3.0 compliance and core interface capability:

• TUSB8041RGCT operates as a Hub Controller rather than Host Controller
• Reduced pin count (64-VQFN vs. 100-WQFN) with expanded interface support (GPIO, I2C, SMBus addition)
• Active product status with improved supply availability
• Identical supply voltage and operating temperature specifications

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

TUSB7320RKMR, TUSB7320RKMT, and TUSB7340RKMR are parametric equivalents to TUSB7340RKMT. All maintain identical electrical specifications, package configuration, and functional classification as USB 3.0 Host Controllers. These parts are suitable for direct substitution in existing designs without circuit modification. All carry "Not For New Designs" status, indicating they share the same product lifecycle phase as the original part.

For Active Product Substitution:

TUSB8041RGCT is the manufacturer-recommended substitute with Active product status. This part operates as a USB 3.0 Hub Controller rather than a Host Controller and incorporates additional interface capabilities (GPIO, I2C, SMBus). The 64-VQFN package requires PCB layout redesign due to reduced pin count and different footprint geometry. This option provides superior long-term supply availability and ongoing manufacturer support.

Compliance Considerations:

All listed parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL 3 ratings. Supply voltage and operating temperature ranges are consistent across all options, ensuring thermal and power management compatibility.

Frequently Asked Questions (FAQ)

Q: Can TUSB7320RKMR, TUSB7320RKMT, or TUSB7340RKMR be used as direct drop-in replacements for TUSB7340RKMT?

A: Yes. These three parts are parametric equivalents with identical package geometry (100-WQFN-MR 9x9), pin configuration, electrical specifications, and functional classification. No circuit redesign is required for substitution.

Q: What is the primary difference between TUSB7340RKMT and TUSB8041RGCT?

A: TUSB8041RGCT differs in two critical aspects: functional role (Hub Controller vs. Host Controller) and package density (64-VQFN vs. 100-WQFN). The reduced pin count requires PCB layout modification. However, TUSB8041RGCT maintains Active product status, providing superior supply continuity compared to the "Not For New Designs" classification of TUSB7340RKMT.

Q: Are packaging differences between 100-WQFN and 64-VQFN significant for board redesign?

A: Yes. The 100-WQFN package uses dual rows with 100 pins in a 9x9mm footprint, while the 64-VQFN package uses a single row configuration with 64 pins in the same 9x9mm footprint. PCB footprint, trace routing, and via placement require complete redesign. Mechanical clearance and thermal management considerations may also differ.

Q: Do all substitute parts maintain the same supply voltage requirements?

A: Yes. All listed parts operate with identical supply voltage specifications of 1.1V and 3.3V. Power distribution and decoupling circuit design can remain unchanged during substitution.

Q: What is the significance of "Not For New Designs" product status?

A: This designation indicates the manufacturer has discontinued active development and recommends against using these parts in new product designs. Existing inventory may be available, but long-term supply is not guaranteed. For production continuity, migration to Active status parts such as TUSB8041RGCT is recommended.

Q: Are there any interface capability differences between the Host Controller and Hub Controller variants?

A: Yes. TUSB7340RKMT (Host Controller) supports USB and PCIe interfaces. TUSB8041RGCT (Hub Controller) supports USB, GPIO, I2C, and SMBus interfaces. The expanded interface set in TUSB8041RGCT may provide additional system integration flexibility but requires firmware and circuit design modifications to utilize these capabilities.