LAN9371-I/ZMX Microchip Integrated Circuit (Quad Flat Packages) In Stock
The LAN9371-I/ZMX is a 6-port 100BASE-T1 industrial Ethernet switch IC from Microchip designed for automotive and industrial networks. It supports full-duplex 100 Mbps operation on each port with integrated PHYs and an RGMII/MII host interface. Available in stock worldwide for industrial connectivity designs.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 129
- Lifecycle
- ACTIVE
- Datasheet
- LAN9371-I/ZMX Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.8500(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6-port 100BASE-T1 switch with integrated PHYs enabling single-pair Ethernet connectivity across automotive CAN replacement and in-vehicle network segments
- Industrial temperature range of -40°C to +85°C with robust EMC compliance supporting reliable operation in harsh factory floor and automotive environments
- RGMII/MII host interface with IEEE 802.1 QoS and VLAN tagging providing flexible traffic management for time-sensitive industrial and automotive Ethernet applications
Applications
The LAN9371-I/ZMX targets automotive body domain controllers, in-vehicle infotainment backbone switches, and industrial machine-to-machine communication backplanes requiring deterministic 100 Mbps links over single unshielded twisted pairs. Its 6-port architecture consolidates multiple sensor and actuator nodes onto a single switch IC, reducing BOM complexity in factory robots and AGV platforms. The device is also used in edge gateways for IIoT deployments where space-constrained PCBs demand a compact QFN package with integrated magnetics-free PHYs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LAN9371-I/ZMX:
Frequently Asked Questions
How many ports does the LAN9371-I/ZMX support and at what data rate does each port operate?
The LAN9371-I/ZMX provides 6 ports, each operating at 100 Mbps full-duplex using the 100BASE-T1 single-pair Ethernet standard. This gives a total aggregate switching capacity of 600 Mbps, sufficient for connecting multiple sensors, cameras, or ECUs within an automotive or industrial network segment.
What is the operating temperature range of the LAN9371-I/ZMX and which industrial or automotive environments does it support?
The LAN9371-I/ZMX is rated for an industrial temperature range of -40°C to +85°C, making it suitable for under-hood automotive installations, outdoor industrial gateways, and factory floor automation systems where ambient conditions vary widely across seasons and equipment load cycles.
Which host interface does the LAN9371-I/ZMX use to connect to a host processor or SoC?
The LAN9371-I/ZMX uses an RGMII or MII host interface, running at up to 125 MHz for RGMII mode, to connect directly to automotive SoCs or industrial MPUs. This standard interface minimizes firmware porting effort and is supported natively by Linux and AUTOSAR Ethernet stack drivers.
When would the LAN9371-I/ZMX be chosen over a traditional 100BASE-TX switch for automotive designs?
The LAN9371-I/ZMX is preferred over 100BASE-TX alternatives when the cable weight budget is critical, because 100BASE-T1 operates over a single unshielded twisted pair instead of 4 pairs. Saving 3 pairs per link across a vehicle with 20 or more nodes reduces harness weight by several hundred grams, directly impacting fuel economy and EV range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.7800 | $9.78 |
| 45+ | $9.4500 | $425.25 |
| 68+ | $8.7600 | $595.68 |
| 90+ | $8.1500 | $733.50 |
| 100+ | $7.4100 | $741.00 |
| 1000+ | $6.8500 | $6850.00 |
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