Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Function | USB 2.0 hub plus 10/100 Ethernet controller |
| USB topology | 1 upstream + 4 downstream ports |
| Ethernet | Integrated 10/100 MAC and PHY |
| Package | 64-pin QFN |
| Temperature range | -40°C to +85°C |
| Clocking | Single 25 MHz crystal through UniClock |
| Product status | In Production |
| Exact order code | LAN9514I-JZX |
Product Overview
The LAN9514I-JZX is the industrial-temperature version of Microchip’s integrated four-port USB 2.0 hub and 10/100 Ethernet controller. It combines one upstream USB 2.0 interface, four downstream USB 2.0 ports and an Ethernet MAC/PHY in a single 64-pin QFN.
The exact I-JZX order code matters because Microchip defines this version for -40°C to +85°C operation. The commercial LAN9514-JZX uses the same 64-pin QFN family but is specified only for 0°C to +70°C. UniClock also allows a single 25 MHz crystal to serve the USB and Ethernet sections, reducing external clock components.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| USB standard | USB 2.0 |
| Upstream USB ports | 1 |
| Downstream USB ports | 4 |
| Downstream PHYs | 4 integrated USB 2.0 PHYs |
| Ethernet | 10/100 Mbps |
| Ethernet MAC/PHY | Integrated |
| Reference crystal | 25 MHz |
| Clocking feature | UniClock |
| Package | 64-pin QFN, lead-free RoHS compliant |
| Temperature range | -40°C to +85°C |
| Product status | In Production |
Design Considerations
The four downstream USB ports still require board-level VBUS power switching and overcurrent design appropriate to the selected power architecture. The hub silicon does not eliminate the need to design downstream-port power distribution correctly.
For industrial applications, preserve the I temperature suffix rather than substituting the commercial version only because the footprint is identical. Environmental qualification is part of the exact device selection.
Related Engineering Resources
- LAN9514/LAN9514i USB 2.0 Hub and 10/100 Ethernet Controller Data Sheet
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
