MAX1481EUB+T

Drivers, Receivers, Transceivers Overview

The MAX1481EUB+T is a software-selectable, half-/full-duplex, low-power, slew-rate-limited RS-485/RS-422 transceiver housed in a 10-pin µMAX package. It operates from a single +5V supply with a typical quiescent current of 300µA and features a low-power shutdown mode reducing current to 0.1µA. The device includes one driver and one receiver with a 1/8-unit-load input impedance, supporting up to 256 transceivers on the bus. Slew-rate limiting enables error-free data transmission up to 250kbps while minimizing EMI. It provides thermal-shutdown protection and a fail-safe receiver that guarantees a logic-high output if the input is open circuit.

Drivers, Receivers, Transceivers Feature Summary

• Software-selectable half-/full-duplex operation
• Slew-rate limiting for reduced EMI and reflections
• Low-power shutdown mode with 0.1µA standby current
• Fail-safe receiver input guaranteeing high output

Drivers, Receivers, Transceivers Applications

• Low-power RS-422/RS-485 communications
• Level translators
• Hand-held equipment
• Battery-powered equipment
• Transceiver for EMI-sensitive applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity by checking the manufacturer marking against official datasheet specifications. Confirm the ordering suffix matches the required temperature range and packaging format. Ensure the supplier provides valid traceability documentation. Cross-reference the part number with the authorized distributor list to avoid counterfeit components. Validate RoHS compliance status through the manufacturer's official product change notifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component for space-constrained designs requiring full-duplex RS-422 or RS-485 communication. It is suitable for battery-powered systems due to its low quiescent current and shutdown capability. Choose this part when EMI reduction is critical, as the slew-rate limiting minimizes signal reflections. Ensure the application requires a single +5V supply and benefits from the 1/8-unit-load receiver impedance for high node counts.

Drivers, Receivers, Transceivers Part Context

The MAX1481EUB+T belongs to the MAX1481/MAX1484/MAX1485/MAX1486 family of high-speed transceivers. This series offers software-selectable duplex modes and is designed to replace larger, more expensive solutions for selectable half-/full-duplex operation. The MAX1481 variant specifically focuses on full-duplex functionality with slew-rate limiting for EMI-sensitive environments.

Drivers, Receivers, Transceivers Replacement Considerations

Functionally equivalent parts include the MAX491 and 75180. Verify pin compatibility and electrical characteristics before substitution. Ensure the replacement supports the required data rate and operating temperature range.