TUSB7340RKMR Equivalent & Substitute Parts

Part Overview

The TUSB7340RKMR is a USB Host Controller IC manufactured by Texas Instruments, designed for USB 3.0 and PCIe interface applications. This component integrates dual-row exposed pad packaging in a 100-WQFN form factor and operates across supply voltages of 1.1V and 3.3V within a temperature range of 0°C to 70°C. The product is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for legacy system maintenance, design revisions, and ensuring continued supply chain availability for existing applications.

Substiute Parts

TUSB7340RKMR

Texas InstrumentsIn Stock: 1848TUSB7340RKMR Datasheet

Current PartRFQ

TUSB8041RGCR

Texas InstrumentsIn Stock: 47172TUSB8041RGCR Datasheet

MFR RecommendedRFQ

TUSB7320RKMR

Texas InstrumentsIn Stock: 9097TUSB7320RKMR Datasheet

Parametric EquivalentRFQ

TUSB7320RKMT

Texas InstrumentsIn Stock: 2211TUSB7320RKMT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TUSB7340RKMR is determined by the following critical parameters:

Parametric Equivalents maintain identical or functionally equivalent specifications across all electrical and mechanical criteria:

• Function: Host Controller
• Interface: USB, PCIe
• Standards: USB 3.0
• Package: 100-WQFN Dual Rows, Exposed Pad
• Voltage Supply: 1.1V, 3.3V
• Operating Temperature: 0°C ~ 70°C
• RoHS and MSL Compliance: ROHS3 Compliant, MSL 3

Manufacturer Recommended Substitute differs in package configuration and functional scope but maintains USB 3.0 compliance and identical supply voltage specifications. This part is classified as "Active" product status, providing long-term availability assurance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Package-Identical): TUSB7320RKMR and TUSB7320RKMT are parametric equivalents sharing the 100-WQFN package footprint, identical electrical specifications, and Host Controller functionality. Both maintain ROHS3 compliance and MSL 3 ratings. Selection between these two depends on tape reel packaging availability and inventory requirements. Both are classified as "Not For New Designs," consistent with the main part status.

For Active Product Status Requirement: TUSB8041RGCR is the manufacturer-recommended substitute with "Active" product status, ensuring continued availability and support. This part operates under identical supply voltage and temperature specifications. The functional change from Host Controller to Hub Controller and the reduction from 100-WQFN to 64-VFQFN packaging require PCB layout and firmware evaluation. The addition of GPIO, I2C, and SMBus interfaces provides expanded functionality for applications requiring these protocols.

Compliance Assurance: All substitute parts maintain ROHS3 compliance and MSL 3 (168 Hours) ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can TUSB7320RKMR and TUSB7320RKMT be used interchangeably with TUSB7340RKMR? A: Yes. Both parts are parametric equivalents with identical package geometry (100-WQFN Dual Rows, Exposed Pad), electrical specifications (1.1V/3.3V supply, 0°C–70°C operating range), and functional classification (Host Controller, USB 3.0, PCIe interface). The difference lies in tape reel packaging format. PCB layout and firmware require no modification.

Q: What is the primary difference between TUSB8041RGCR and the parametric equivalents? A: TUSB8041RGCR differs in three aspects: (1) Function changes from Host Controller to Hub Controller; (2) Package reduces from 100-WQFN to 64-VFQFN, requiring PCB redesign; (3) Product status is "Active," providing long-term supply assurance. Interface expansion includes GPIO, I2C, and SMBus protocols not present in the main part.

Q: Why is product status important for substitution? A: Product status indicates lifecycle phase. "Not For New Designs" parts are end-of-life with limited future availability. "Active" parts like TUSB8041RGCR provide manufacturer support and continued production, critical for long-term supply chain planning and design revisions.

Q: Are all substitute parts RoHS3 compliant? A: Yes. TUSB7340RKMR, TUSB7320RKMR, TUSB7320RKMT, and TUSB8041RGCR are all ROHS3 compliant with MSL 3 (168 Hours) ratings, meeting standard environmental and manufacturing requirements.

Q: Does package size affect electrical performance? A: Package size does not affect electrical performance within the specified operating parameters. However, the 64-VFQFN package of TUSB8041RGCR requires different PCB footprint design compared to the 100-WQFN packages of parametric equivalents, necessitating layout verification.

Q: Can TUSB8041RGCR be used without firmware changes? A: Firmware compatibility depends on application-specific requirements. While both Host and Hub Controller functions operate under USB 3.0 standards with identical supply voltages, the functional difference and expanded interface options (GPIO, I2C, SMBus) may require firmware evaluation and potential modification.