Specifications
LAN9514-JZX is a fully integrated single-chip Hi-Speed USB 2.0 hub + 10/100 Ethernet controller from Microchip. Suffix breakdown: JZX = 64-pin QFN exposed pad surface-mount commercial-grade packaging (0°C ~ +85°C). The industrial variant is LAN9514I-JZX for -40°C ~ +85°C operationMicrochip Technology.
1. Core Integrated Hardware Architecture
USB 2.0 Hub Subsystem
- 1 upstream USB 2.0 PHY + 4 independent downstream USB 2.0 PHYs, fully compliant with USB 2.0 specification (480 Mbps High-Speed, 12 Mbps Full-Speed, 1.5 Mbps Low-Speed)
- Built-in USB differential termination resistors, port swap function, programmable PHYBoost signal drive strength
- Per-port power control, short-circuit protection for each downstream channel
- 24 MHz clock output pin to cascade additional external USB hubs
- Three multi-level USB suspend power modes (SUSPEND0/SUSPEND1/SUSPEND2) balancing wake capability and power draw
10/100 Ethernet Subsystem
- Integrated IEEE802.3 10BASE-T / 100BASE-TX MAC + PHY transceiver
- Auto-negotiation, HP Auto-MDIX, automatic polarity correction for twisted-pair cables
- Full/half duplex with IEEE802.3x flow control, embedded TCP/UDP checksum offload engine
- Built-in packet filtering, address matching, and programmable broadcast storm suppression
- Wake-on-LAN (WoL), Magic Packet™, link change remote wake triggers in USB suspend stateMicrochip Technology
Unified System Resources
- Microchip UniClock™ technology: single 25 MHz crystal serves both USB and Ethernet, eliminates extra oscillator components to cut BOM costMicrochip Technology
- Internal 1.8 V core LDO regulator; external single 3.3 V supply input only
- On-chip POR power-on reset circuit, no external reset passive components required
- 8 general-purpose GPIO pins, configurable as remote wakeup sources during suspend
- 3 dedicated Ethernet status LED drivers for link/activity/speed indication
- IEEE 1149.1 JTAG TAP boundary scan controller for production testing
- On-board EEPROM controller for loading VID/PID, MAC address and configuration at power-up
2. Protection & Reliability Features
- Integrated ±8 kV contact / ±15 kV air ESD protection on all USB and Ethernet signal pins
- Over-current thermal shutdown for internal power regulators
- Internal short-circuit detection on USB differential data lines
- Supports both bus-powered and self-powered USB device configurations
3. Electrical & Environmental Ratings
- Operating supply voltage: 3.0 V ~ 3.6 V (nominal 3.3 V)
- Operating temperature range (JZX commercial grade): 0°C ~ +85°C
- MSL 3 moisture sensitivity level; fully RoHS lead-free and halogen-free compliant
4. Package Information
- Package type: 64-pin QFN with exposed thermal pad, 9 mm × 9 mm compact footprint
- Standard tray packaging; tape-and-reel variant LAN9514-JZX-TR available for mass SMT assembly
Typical Applications
- USB docking stations, laptop/UMPC expansion docks
- Embedded industrial USB-to-Ethernet gateway modules
- Network printers, digital set-top boxes, smart TVs and Blu-ray players
- Game consoles and portable multimedia consumer devices
- Mobile IoT gateways, single-board computer multi-port USB + LAN expansion
- Medical portable test equipment with USB peripheral and wired network interface
- Digital signage and commercial display control boards
LXB Semicon supplies original Microchip LAN9514-JZX integrated 4-port USB2.0 hub and 10/100 Ethernet bridge IC
