TUSB7320RKMR Equivalent & Substitute Parts

Part Overview

The TUSB7320RKMR is a USB 3.0 Host Controller manufactured by Texas Instruments, designed for interface applications requiring USB and PCIe connectivity. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. The part is housed in a 100-WQFN package with dual rows and an exposed pad, operating across a supply voltage range of 1.1V to 3.3V and a temperature range of 0°C to 70°C. Due to its discontinued design status, identifying equivalent and substitute parts is essential for ongoing system support, legacy design maintenance, and component procurement planning.

Substiute Parts

TUSB7320RKMR

Texas InstrumentsIn Stock: 9097TUSB7320RKMR Datasheet

Current PartRFQ

TUSB8020BPHPR

Texas InstrumentsIn Stock: 31737TUSB8020BPHPR Datasheet

MFR RecommendedRFQ

TUSB7320RKMT

Texas InstrumentsIn Stock: 2211TUSB7320RKMT Datasheet

Parametric EquivalentRFQ

TUSB7340RKMR

Texas InstrumentsIn Stock: 1848TUSB7340RKMR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TUSB7320RKMR are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or functionally equivalent specifications across all critical parameters: USB 3.0 protocol support, Host Controller function, USB and PCIe interface capability, 100-WQFN package format, 1.1V/3.3V supply voltage range, 0°C to 70°C operating temperature, ROHS3 compliance, and MSL 3 rating. These parts are direct replacements at the functional level.

Manufacturer Recommended Substitute differs in package type and function classification but maintains USB 3.0 protocol support, identical supply voltage and temperature specifications, and equivalent compliance certifications. This category represents functional alternatives where package constraints permit substitution.

The following parameters determine substitution eligibility:

• USB 3.0 protocol compliance
• Supply voltage range (1.1V, 3.3V)
• Operating temperature range (0°C ~ 70°C)
• RoHS3 and MSL 3 compliance
• Package mechanical compatibility
• Interface capability (USB, PCIe or USB with additional interfaces)

Parameter Comparison

Engineering Selection Recommendations

TUSB7320RKMT is a parametric equivalent offering identical electrical and mechanical specifications to the TUSB7320RKMR. Both parts share the same base product number (TUSB7320), package format (100-WQFN-MR), and functional classification (Host Controller). Selection between these two parts depends on inventory availability and packaging format (Cut Tape vs. Digi-Reel). Both carry "Not For New Designs" status and are suitable for legacy system support only.

TUSB7340RKMR is a parametric equivalent with identical package, voltage, temperature, and compliance specifications. The primary distinction is the base product number (TUSB7340 vs. TUSB7320), indicating a different controller variant within the same product family. This part maintains full electrical and mechanical compatibility and is appropriate for applications where the TUSB7340 variant meets functional requirements.

TUSB8020BPHPR is the manufacturer-recommended substitute, classified as "Active" product status, making it the preferred choice for new procurement and ongoing system support. This part maintains USB 3.0 protocol compliance, identical supply voltage (1.1V, 3.3V), and operating temperature range (0°C ~ 70°C). The primary trade-off is the package format: TUSB8020BPHPR uses a 48-HTQFP (7x7) package compared to the 100-WQFN format of the original part. Additionally, TUSB8020BPHPR is classified as a Hub Controller rather than a Host Controller and includes GPIO, I2C, and SMBus interfaces. PCB layout redesign is required to accommodate the different package footprint and pin configuration.

For legacy system maintenance, TUSB7320RKMT and TUSB7340RKMR provide direct substitution without redesign. For new procurement and long-term availability, TUSB8020BPHPR is the recommended path forward, contingent on PCB layout compatibility with the 48-HTQFP package format.

Frequently Asked Questions (FAQ)

Q: Can TUSB7320RKMT be used as a direct replacement for TUSB7320RKMR without PCB modifications?

A: Yes. TUSB7320RKMT is a parametric equivalent with identical package format (100-WQFN-MR), pin configuration, electrical specifications, and functional classification. No PCB layout changes are required. The parts differ only in packaging method (Cut Tape vs. Digi-Reel) and inventory availability.

Q: What is the difference between TUSB7320RKMR and TUSB7340RKMR?

A: Both parts share identical electrical specifications, package format, voltage range, temperature range, and compliance certifications. The distinction lies in the base product number (TUSB7320 vs. TUSB7340), indicating different controller variants within the Texas Instruments USB 3.0 Host Controller family. Functional differences between variants are not specified in the provided parameters.

Q: Why is TUSB8020BPHPR recommended as a substitute if it has a different package?

A: TUSB8020BPHPR is the only substitute with "Active" product status, ensuring long-term availability and manufacturer support. While it requires PCB redesign due to the 48-HTQFP package format, it provides a sustainable solution for new procurement. The part maintains USB 3.0 protocol compliance, identical supply voltage and temperature specifications, and equivalent compliance certifications (ROHS3, MSL 3).

Q: Can TUSB8020BPHPR be used in existing TUSB7320RKMR designs without modification?

A: No. TUSB8020BPHPR uses a different package format (48-HTQFP vs. 100-WQFN), requiring PCB layout redesign and pin remapping. Additionally, TUSB8020BPHPR is classified as a Hub Controller with GPIO, I2C, and SMBus interfaces, whereas TUSB7320RKMR is a Host Controller with USB and PCIe interfaces. Functional compatibility must be verified against specific application requirements.

Q: Are all substitute parts RoHS3 compliant and MSL 3 rated?

A: Yes. TUSB7320RKMT, TUSB7340RKMR, and TUSB8020BPHPR are all ROHS3 compliant with MSL 3 (168 Hours) rating, matching the original TUSB7320RKMR specifications.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of 0°C to 70°C, matching the TUSB7320RKMR specification.

Q: Which substitute part should be selected for legacy system support?

A: For legacy systems requiring direct replacement without PCB modifications, select either TUSB7320RKMT or TUSB7340RKMR. Both maintain the 100-WQFN package format and identical electrical specifications. Selection depends on inventory availability and specific functional requirements of the TUSB7340 variant.