MAX3463CSA+

Drivers, Receivers, Transceivers Overview

The MAX3463CSA+ is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. (Maxim Integrated). It operates from a single +5V supply and supports data rates up to 20Mbps with propagation delays under 20ns. The device features true fail-safe circuitry, ensuring a logic-high receiver output when inputs are open or shorted. It includes hot-swap capability for the driver enable pin and low-power shutdown mode drawing typically 1µA. The component is housed in an 8-pin SOIC package and complies with TIA/EIA-422-B, TIA/EIA-485-A, V.11, X.27, and Profibus specifications.

Drivers, Receivers, Transceivers Feature Summary

• Hot-swap input structure prevents bus disturbances during board insertion into powered backplanes
• True fail-safe receiver guarantees logic-high output when differential inputs are open or shorted
• Low-power shutdown mode reduces supply current to approximately 1µA
• Thermal shutdown and foldback current limiting protect against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• High-speed RS-485 communications networks
• Profibus applications requiring specific output levels
• Industrial-control local area networks
• Level translation between different voltage domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer part number matches the exact suffix configuration required for your application. Confirm that the 8-pin SOIC package dimensions align with your PCB footprint. Ensure the operating temperature range meets your environmental requirements before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component for half-duplex multipoint communication systems requiring high-speed data transfer up to 20Mbps. It is suitable for environments needing hot-swap protection and low standby power consumption. Verify compatibility with existing bus termination schemes and ensure the 1/4-unit-load receiver impedance fits your network topology.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX3460–MAX3464 family of high-speed differential bus transceivers designed for RS-485 and RS-422 standards. The MAX3463 variant specifically provides half-duplex operation with integrated hot-swap functionality on the driver enable pin, distinguishing it from full-duplex counterparts in the same series.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3464CSA+ is a similar half-duplex transceiver within the same family but lacks the hot-swap feature found in the MAX3463. Other compatible parts include the MAX3460 through MAX3462 series, though these offer full-duplex operation which may require different circuit configurations.