USB5434-3089JZX Equivalent & Substitute Parts

Part Overview

The USB5434-3089JZX is a USB Hub Controller IC manufactured by Microchip Technology, designed for USB 3.0 interface applications in a 64-QFN (9x9) package. This part is classified as obsolete, which necessitates identification of active equivalent components to maintain design continuity and ensure long-term supply chain reliability. The functional role of this controller—managing USB hub operations at the USB 3.0 protocol level—remains consistent across equivalent substitute parts.

Substiute Parts

USB5434-3089JZX

Microchip TechnologyIn Stock: 1042USB5434-3089JZX Datasheet

Current PartRFQ

USB5534B-6080JZX

Microchip TechnologyIn Stock: 7585USB5534B-6080JZX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The USB5534B-6080JZX qualifies as a direct substitute for the USB5434-3089JZX based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by Microchip Technology
• Function: Both serve as USB Hub Controllers
• Protocol & Interface: Both implement USB 3.0 protocol
• Package Type: Both use 64-VFQFN Exposed Pad packaging with identical 64-QFN (9x9) dimensions
• Operating Temperature: Both operate across 0°C ~ 70°C range
• Supply Voltage: Both support 3.3V operation (within the specified range)
• Moisture Sensitivity: Both rated at MSL 3 (168 Hours)
• RoHS Compliance: Both meet ROHS3 requirements

The primary distinction is product status: the USB5434-3089JZX is obsolete, while the USB5534B-6080JZX is active and maintains current manufacturing and supply availability.

Parameter Comparison

Engineering Selection Recommendations

The USB5534B-6080JZX is the appropriate substitute for the obsolete USB5434-3089JZX. Selection is based on:

• Functional Equivalence: Both parts perform identical USB Hub Controller functions within the USB 3.0 protocol framework
• Package Compatibility: Identical 64-QFN (9x9) footprint and pinout enable direct PCB-level substitution without layout modifications
• Compliance Alignment: Both parts maintain ROHS3 compliance and equivalent moisture sensitivity ratings, ensuring regulatory and environmental consistency
• Supply Continuity: The substitute part maintains active production status with established inventory availability, eliminating obsolescence risk

The USB5534B-6080JZX is suitable for new designs and replacement applications where the USB5434-3089JZX is no longer available.

Frequently Asked Questions (FAQ)

Q: Can the USB5534B-6080JZX be used as a direct replacement on existing PCBs designed for the USB5434-3089JZX?

A: Yes. Both parts share identical package type (64-VFQFN Exposed Pad), package dimensions (64-QFN 9x9), and functional specifications. No PCB redesign is required.

Q: Are there differences in supply voltage requirements between these parts?

A: Both parts operate at 3.3V, which falls within the specified supply voltage range. The USB5434-3089JZX specifies a broader range (1.22V ~ 1.31V, 3V ~ 3.6V), while the USB5534B-6080JZX specifies 1.25V and 3.3V. Standard 3.3V supply designs are compatible with both parts.

Q: What is the significance of the different packaging formats (Bulk vs. Tray)?

A: Packaging format affects handling, storage, and assembly processes but does not impact electrical or functional performance. Bulk packaging is typical for obsolete parts with limited remaining inventory, while Tray packaging is standard for active production parts.

Q: Are both parts RoHS compliant?

A: Yes. Both the USB5434-3089JZX and USB5534B-6080JZX meet ROHS3 compliance requirements.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts are rated at MSL 3 with a 168-hour floor life. Standard moisture control procedures during storage and assembly apply to both components.