Why the 42 Mbps data rate matters for your bus
The MAX14783EESA+T is a half-duplex RS-485 / RS-422 transceiver from Analog Devices, rated for 42 Mbps (cite:). At that speed the cable length must be short — the RS-485 standard trades distance for rate, so a 42 Mbps link is a backplane or intra-cabinet run, not a long-haul field bus. The supply voltage spans 3V to 5.5V (cite:), which means it runs on either a 3.3V or 5V rail without a secondary regulator. The receiver hysteresis is 10 mV (cite:) — this is the noise margin on the differential input. In a noisy industrial environment, that hysteresis prevents the receiver from chattering on slow or noisy edges.
The part is ROHS3 compliant (cite:), so it passes the material declaration for EU markets without an exemption claim.
Lifecycle status is Active (cite:). That means Analog Devices has no current plan to end production — no last-time-buy trigger, no qualification of a replacement required for the BOM line. Cut Tape is also listed for prototype or low-volume builds.