MaxLinear
3.3V Half-Duplex RS-485/RS-422 Transceiver (10Mbps, SOIC-8)
The SP3485EN-L/TR is a 3.3V low-power half-duplex RS-485/RS-422 transceiver featuring a maximum data rate of 10 Mbps. Built with ESD-protected drivers and receivers, it operates seamlessly under demanding industrial bus topologies like Modbus and BACnet. Its low quiescent power consumption and robust common-mode noise immunity make it a staple in smart energy meters, industrial automation, and HVAC control systems. With factory lead times stretching over 300 days, spot inventory is crucial for ongoing production lines.
Key Specifications
Verify against the original datasheet before quoting.
| Operating Voltage | +3.3V Single Supply |
|---|---|
| Data Rate | Up to 10 Mbps |
| Network Topology | Half-Duplex RS-485 / RS-422 |
| Driver Output / Common-Mode Range | -7V to +12V |
| ESD Protection | ±15kV Human Body Model (HBM) |
| Package | SOIC-8 (Tape & Reel - TR) |
Market Status — as of October 2026
Extended lead time (322 days), Limited Availability. Factory lead time is currently around 46 weeks.
Quality & Traceability
Cerametronics is ISO 9001 certified and products are RoHS compliant, with counterfeit screening and full traceability on every shipment. A Certificate of Conformance is available on request. For allocation-sensitive or high-risk lots, independent third-party lab verification can be arranged — just flag it on your RFQ. Any lot that fails incoming inspection is quarantined and never shipped.
FAQ
How many nodes can be connected on a single bus using SP3485?
Its receiver presents a standard unit load, allowing up to 32 transceivers on a shared bus.
Is the SP3485EN pin-to-pin compatible with 5V RS-485 transceivers like MAX485?
It shares the same SOIC-8 pinout layout as standard MAX485/ADM485 chips, but operates on a 3.3V VCC rail instead of 5.0V.
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Cerametronics is an independent electronic components distributor and is not affiliated with MaxLinear. All trademarks belong to their respective owners.
