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RS-485 Transceiver

2 parts

Half/full-duplex RS-485/RS-422 transceivers for long, noisy differential links — the workhorse phy for Modbus and industrial field wiring, supporting runs of hundreds of metres with multidrop nodes.

How to choose

Match data rate vs cable length; slew-limited parts reduce EMI on slower links.
Check the unit-load rating for how many nodes share the bus.
Isolated variants (ADM2483 etc.) break ground loops in industrial installs — usually worth it beyond one enclosure.

	Part	LCSC	Description	Package	JLC class
	SP3485EN-L/TR MaxLinear(迈凌)	C8963	SP3485 3.3V low-power half-duplex RS-485 transceiver, 1 driver, 1 receiver, 10Mbps data rate, 32 nodes, -40°C~+85°C.	SOIC-8	Basic Part
	MAX3485ESA+T	C5342104	MAX3485ESA+T half-duplex RS-485 transceiver; 3.0V~5.5V wide supply; 3V~3.6V; 1 driver, 1 receiver; 10Mbps	SOP-8	Extended Part

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