LAN9514I-JZX - USB 2.0 Hub and 10/100 Ethernet | Microchip
MPN： LAN9514I-JZX ✓ 啟用中LAN9514I-JZX 概覽
An Ethernet controller is a semiconductor that connects a computer or embedded system to an Ethernet physical layer. In this case, the LAN9514I-JZX combines a USB-to-Ethernet bridge with a four-port Hi-Speed USB hub. This integration gives a compact USB connectivity solution for systems that need one upstream USB connection, multiple USB peripherals, and a wired 10/100 network interface without implementing separate controllers on the main board.
The device supports Hi-Speed USB 2.0 operation and 10BASE-T and 100BASE-TX networking. Its integrated Ethernet controller complies with IEEE 802.3 and IEEE 802.3u, supports full- and half-duplex operation, and includes flow control. The USB side provides four downstream ports through the integrated downstream PHYs, while the upstream USB PHY connects the device to a host controller. The LAN9514I-JZX is intended to operate from a 3.3 V supply, with a 1.8 V interface option identified in the device specifications.
The industrial-temperature designation distinguishes this version from the standard LAN9514-JZX. The LAN9514I-JZX supports an ambient temperature range of -40°C to +85°C, whereas the standard LAN9514-JZX is specified from 0°C to +70°C. Both use the same 64-pin lead-free QFN package, but the wider temperature range makes the LAN9514I-JZX more appropriate for industrial equipment, networking appliances, printers, docking stations, and embedded systems operating beyond commercial temperature limits.
Typical uses include USB-to-Ethernet adapters, multifunction docking stations, industrial control panels, network-attached peripherals, embedded Linux systems, and desktop or notebook connectivity products. A single upstream USB port can support attached USB peripherals while the Ethernet interface provides a stable wired connection to a local network. This reduces board area and component count compared with separate USB hub and Ethernet controller devices.
The principal design consideration is power and signal integrity around the exposed-pad package. Follow the manufacturer datasheet for the 64-pin connection, pin assignment, decoupling requirements, clocking, magnetic-component interface, and exposed-pad land pattern. Keep high-speed USB and Ethernet routing away from noisy power-conversion stages, provide the specified local bypass capacitance, and use a controlled-impedance layout to preserve USB 2.0 and 10/100 Ethernet signal quality.
This product page combines the LAN9514I-JZX device functions, verified package and temperature details, application guidance, compatibility boundaries, and practical design notes to support faster engineering evaluation and sourcing decisions.
直接替換替代品，適用於 LAN9514I-JZX — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LAN9514I-JZX （相同外形與佔位） — 差異在於 Ethernet Speed, Operating Temperature, Package, RoHS Status, Product Type.
LAN9514-JZX
✅ 直接替換聯絡詢價
查看資料表 →LAN9514I-JZX 規格
| Product Type | USB 2.0 Hub and 10/100 Ethernet Controller |
| USB Interface | Hi-Speed USB 2.0 |
| Ethernet Standard | IEEE 802.3 and IEEE 802.3u |
| Ethernet Data Rate | 10/100 Mbps |
| Ethernet Modes | 10BASE-T and 100BASE-TX, full- and half-duplex |
| Integrated USB 2.0 PHYs | 5 PHYs: 1 upstream and 4 downstream |
| Downstream USB Ports | 4 ports |
| Main Supply Voltage | 3.3 V |
| Interface Supply Voltage | 1.8 V |
| 供應電流 | 288 mA |
| 工作溫度 | -40°C to +85°C |
| 封裝 | 64-QFN exposed-pad package, 9 x 9 mm |
| 安裝類型 | Surface Mount |
| Lead-Free Status | Lead-free package |
| RoHS 狀態 | Compliant |
| Integrated Functions | Ethernet MAC, 10/100 Ethernet PHY, USB hub, TAP controller, and EEPROM controller |
LAN9514I-JZX 64-qfn exposed-pad package, 9 x 9 mm 腳位配置指南
LAN9514I-JZX（64-qfn exposed-pad package, 9 x 9 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： LAN9514I-JZX.
請參閱 資料表 以查看完整腳位配置。
典型應用
LAN9514I-JZX 適用於 6 應用s: Industrial USB-to-Ethernet Adapter, Multifunction Docking Station, Embedded Linux Network Terminal, Network-Aware USB Peripheral, USB-to-Ethernet Print Server, Industrial Control Panel Interface.
Industrial USB-to-Ethernet Adapter
The LAN9514I-JZX fits industrial USB-to-Ethernet adapters because it combines a 10/100 Ethernet MAC and PHY with Hi-Speed USB 2.0 connectivity in one 64-QFN package. A host system connects through the upstream USB PHY while the Ethernet side supports 10BASE-T and 100BASE-TX links with full- and half-duplex operation. The -40°C to +85°C rating provides useful environmental margin for factory equipment, while the 3.3 V supply and 288 mA operating current support compact embedded designs. Designers should still validate magnetics isolation, cable surge exposure, connector grounding, and enclosure temperature at the system level.
推薦
Multifunction Docking Station
A docking station can use the LAN9514I-JZX to combine one upstream USB 2.0 connection, four downstream USB ports, and a wired 10/100 Ethernet interface. The four integrated downstream PHYs reduce the need for separate USB hub controllers, while the integrated Ethernet MAC and PHY simplify the network path to the host over USB. This integration is valuable where enclosure space is constrained and reliable peripheral enumeration is required. Layout should preserve controlled USB and Ethernet impedance, keep the Ethernet magnetics interface short, and provide local supply decoupling. The -40°C to +85°C range also supports industrial docking equipment that operates beyond a standard commercial office environment.
推薦
Embedded Linux Network Terminal
The LAN9514I-JZX is well suited to embedded Linux terminals that need a compact wired network path and several USB peripherals without separate bridge silicon. The host connects to the integrated USB 2.0 interface, while the Ethernet MAC and PHY provide 10/100BASE-TX connectivity according to IEEE 802.3 and IEEE 802.3u. Integrated flow control and both half- and full-duplex modes provide useful network-management options for embedded control, data acquisition, and maintenance systems. Firmware integration must account for USB enumeration and network-driver support. The device's 3.3 V operation and industrial temperature rating make it suitable for compact, deployed systems rather than temperature-limited consumer accessories.
推薦
Network-Aware USB Peripheral
The LAN9514I-JZX can add both USB hub and Ethernet capabilities to a network-aware peripheral such as a printer, panel-mounted controller, or service interface. One upstream USB link connects the peripheral to a host, four downstream ports serve peripherals or service connections, and the 10/100 Ethernet controller adds a wired management path. This avoids implementing three separate interface blocks on the PCB and can simplify assembly in compact products. Product developers should verify host-driver compatibility, USB enumeration timing, Ethernet auto-negotiation behavior, and system boot-order requirements. For machinery or outdoor installations, the -40°C to +85°C rating provides a clear advantage over the commercial-temperature LAN9514-JZX.
推薦
USB-to-Ethernet Print Server
A USB-to-Ethernet print server can use the LAN9514I-JZX to provide a USB host interface to a printer and a separate 10/100 network connection for shared printing and management. The integrated Ethernet PHY and MAC reduce the number of external active devices, while the four downstream USB PHYs support service peripherals in more elaborate print-server designs. IEEE 802.3 and IEEE 802.3u support, flow control, and half- or full-duplex operation help establish a conventional 10/100 network connection. The system still requires suitable Ethernet magnetic components and an isolated physical-layer implementation. For embedded print servers installed in manufacturing environments, the -40°C to +85°C operating range supports a wider deployment envelope than the 0°C to +70°C standard version.
推薦
Industrial Control Panel Interface
The LAN9514I-JZX can consolidate control-panel connectivity by providing a host USB link, four USB peripheral ports, and a 10/100 Ethernet management connection. This is useful in industrial panels that must support a local operator interface, removable media, diagnostic tools, and network access. The -40°C to +85°C operating range supports equipment placed in factories or other environments with wide temperature variation. Ethernet signal routing must remain isolated from noisy switching supplies and motor-control stages, while the USB routes should use the layout guidance in the manufacturer datasheet. System qualification should verify electrostatic and surge immunity at external connectors, cable compatibility, supply startup behavior, and operating temperature inside the enclosure rather than assuming it equals the ambient component rating.
推薦
推薦產品摘要
工程參考資料，適用於 LAN9514I-JZX — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LAN9514-JZX |
|---|---|---|
| Product Type | USB 2.0 Hub and 10/100 Ethernet Controller | USB 2.0 Hub and 10/100 Ethernet Controller |
| Brand | Microchip Technology | Microchip Technology |
| Package | 64-QFN exposed-pad package, 9 x 9 mm | 64-QFN exposed-pad package, 9 x 9 mm |
| Operating Temperature | -40°C to +85°C | 0°C to +70°C |
| USB Interface | Hi-Speed USB 2.0 | Hi-Speed USB 2.0 |
| Ethernet Data Rate | 10/100 Mbps | 10/100 Mbps |
| Ethernet Standards | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u |
| Supply Voltage | 1.8 V and 3.3 V | 1.8 V and 3.3 V |
| Lead-Free and RoHS Status | Lead-free RoHS-compliant package | Lead-free RoHS-compliant package |
主要差異化特點
- Wider industrial temperature coverage (對比LAN9514-JZX)
- Complete integration in one package (對比LAN9514-JZX)
- Pin-compatible PCB reuse across temperature grades (對比LAN9514-JZX)
設計說明
Use the exact 64-pin land pattern and exposed-pad geometry from the manufacturer datasheet. Route the upstream and downstream USB 2.0 pairs as controlled-impedance, tightly matched traces, and keep Ethernet differential pairs away from switching nodes and high-current paths. The Ethernet magnetics interface should be short and isolated from digital return-current paths. Do not infer the pin arrangement from a generic 64-QFN footprint because the exposed pad and device-specific assignments are critical to assembly.
Follow the manufacturer requirements for 3.3 V main supply and 1.8 V interface operation, including allowable sequencing, decoupling, and test conditions. Place bypass capacitors close to their associated supply and ground pins and keep the exposed pad connected to the recommended ground plane. The listed 288 mA supply current is a design reference rather than a complete power budget; include Ethernet magnetics, regulator efficiency, cable-power requirements, and transient margin when sizing the system supply.
Separate the Ethernet physical layer from noisy power-conversion circuitry and preserve the differential pair geometry specified for the Ethernet implementation. Use suitable external magnetic components at the cable interface, and follow the manufacturer reference layout to minimize emissions and susceptibility. For USB, minimize branch lengths and maintain symmetric routing to support Hi-Speed operation. Validate signal integrity with the actual enclosure, cables, connectors, and grounding arrangement because connector transitions can dominate board-level performance.
The exposed pad is a primary thermal path, so provide a continuous ground or thermal land and adequate copper area under the package. Use the package thermal information and the manufacturer's recommended reflow profile when calculating junction temperature. Avoid placing the device beside a heat source without airflow or thermal spreading. Because the LAN9514I-JZX supports -40°C to +85°C, component qualification should be checked against the hottest internal location rather than only the enclosure's measured ambient temperature.
合規資訊
The manufacturer datasheet identifies the 64-pin QFN package as lead-free and RoHS compliant. No AEC-Q100 qualification, REACH declaration, halogen-free statement, or conflict-minerals statement was established for this ordering code.
