MAX14783EASA+

Drivers, Receivers, Transceivers Overview

The MAX14783EASA+ is a half-duplex RS-485 transceiver in an 8-pin SO package. It operates on a supply voltage of 3.0V to 5.5V and supports data rates up to 42Mbps at 3.0V to 3.6V, or 16Mbps at 3.0V to 5.5V. The device provides ±35kV HBM ESD protection and features a fail-safe receiver that ensures a logic-high output during input shorts or opens. It includes hot-swap capability to prevent false transitions during power-up. The operating temperature range extends from -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated high-voltage electrostatic discharge protection on driver outputs and receiver inputs.
• True fail-safe receiver design guarantees a defined logic state when differential inputs are shorted or open.
• Built-in hot-swap circuitry prevents bus contention and false data transitions during board insertion or power sequencing.

Drivers, Receivers, Transceivers Applications

• Motion Controllers
• Field Bus Networks
• Encoder Interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'A' indicates the 8-pin SO package variant with extended temperature capabilities. Confirm the required data rate against the supply voltage constraints, as performance drops at higher voltages. Ensure the application environment does not exceed the absolute maximum ratings for continuous power dissipation.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring robust ESD immunity and operation over wide industrial temperature ranges. Compare against the EEUA+ or EESA+ variants if lower temperatures or different packages are acceptable. Verify that the single-driver configuration meets the system's bidirectional communication requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX14783E family of high-speed RS-485 transceivers. It shares core electrical characteristics with other package options like the µMAX and TDFN-EP versions. The primary distinction lies in the physical footprint and thermal resistance associated with the 8-pin SO housing.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible alternatives within the same series include MAX14783EESA+ and MAX14783EEUA+. Substituting these requires verifying that the package dimensions and thermal profiles match the existing PCB layout constraints.

Drivers, Receivers, Transceivers FAQ

How does the MAX14783EASA+ handle hot-swap conditions?

The device utilizes internal pulldown and pullup circuits on the RE and DE pins. These hold the receiver disabled and driver disabled during initial power-up, preventing false transitions until the external controller drives the signals correctly.

What is the fail-safe behavior of the receiver?

The receiver guarantees a logic-high output on the RO pin when the differential input voltage (A-B) is greater than or equal to -10mV. This occurs during input shorts, opens, or when all drivers on the bus are disabled.