LAN7430-I/Y9X

LAN7430-I/Y9X is a low-power single-chip PCIe 3.1 to Gigabit Ethernet bridge controller manufactured by Microchip Technology.

Suffix Breakdown

LAN7430 IC Top View

LAN7430 QFN Package

Single-lane PCIe 3.1 endpoint PHY running at 2.5 GT/s
Supports PCI-PM power management, ASPM L0s/L1, plus low-power LPSS L1.1/L1.2 sub-states for deep power saving
D3 hot/cold power states with VAUX auxiliary power detection for PME wake trigger
On-chip DMA controller with multi-channel Tx/Rx FIFO, hardware TCP/UDP/IP checksum offload, RSS receive scaling and VLAN priority tagging

Built-in 10/100/1000BASE-T copper PHY fully compliant with IEEE 802.3/802.3u/802.3ab
Auto-negotiation, HP Auto-MDIX cable swap, differential pair polarity auto-correction
Quiet-WIRE® EMI reduction technology for harsh industrial wiring environments
LinkMD® TDR cable diagnostic: Detect open/short faults and measure twisted-pair cable length; SQI signal quality indicator
IEEE 802.3az EEE Energy Efficient Ethernet with low-power idle for 100M/1G links

Full hardware IEEE 1588-2008 PTP v2 support for industrial real-time control networks:

Master/Slave ordinary clock operation
End-to-end & peer-to-peer delay measurement (1-step / 2-step timestamping)
Programmable 1PPS time compare output for external synchronization
Hardware packet timestamping on transmit/receive without CPU intervention, ideal for EtherCAT, PROFINET and industrial motion control

Embedded one-time programmable (OTP) memory for factory VID/PID, MAC address and power-up strap settings
External SPI EEPROM controller for flexible OEM custom configuration
IEEE 1149.1 JTAG TAP boundary scan interface for production test and in-circuit debug
Multi-function GPIO pins for link/activity/speed LED status control and system wake signals

Multiple low-power operating states: Dinit, D0 unactive, D0 active, D3 hot, D3 cold
Wake-on-LAN (WoL) and AOAC always-on connected mode
Remote wake triggered by Magic Packet, link state change or PTP event signals
Single wide supply voltage range: 1.62 V ~ 3.63 V (1.8V / 2.5V / 3.3V compatible industrial logic rails)
Only single external 25 MHz crystal required for both PCIe and Ethernet clock generation

All Ethernet differential pins integrated ±8 kV contact / ±15 kV air IEC 61000-4-2 ESD protection
On-die differential termination resistors eliminate external passive components
Undervoltage lockout (UVLO), power-on reset (POR) and thermal shutdown fault protection
Built-in watchdog timer for automatic system recovery from communication lock-up

Operating temperature range (Industrial Grade I): -40°C to +85°C
MSL 3 moisture sensitivity level (168-hour floor life before reflow soldering)
Fully RoHS lead-free, halogen-free and REACH compliant
Package: 48-pin exposed thermal pad VQFN, compact 7mm × 7mm footprint
Standard tray packaging; tape-and-reel version LAN7430T-I/Y9X for mass automated SMT assembly

Industrial PCIe single-board computer Gigabit Ethernet expansion cards
Factory automation motion controllers, EtherCAT/PROFINET real-time network nodes
Embedded industrial gateways, edge computing and data acquisition systems
Medical imaging equipment high-speed PCIe network interface boards
Digital signage, POS payment terminals and industrial vision cameras
Rugged embedded systems, transportation monitoring and vehicle auxiliary network modules
Test & measurement instruments requiring IEEE 1588 precise clock synchronization

LXB Semicon supplies original Microchip LAN7430-I/Y9X industrial PCIe 3.1 integrated Gigabit Ethernet controller with hardware PTP 1588 support