MAX3080CSD+T

Overview

The MAX3080CSD+T is a full-duplex RS-485/RS-422 transceiver featuring one driver and one receiver in a 14-pin SO package. It supports data rates up to 115kbps with slew-rate limiting to minimize EMI. The device operates on a single +5V supply (4.75V to 5.25V) and draws 375µA quiescent current. Fail-safe circuitry ensures a logic-high receiver output when inputs are open or shorted. It includes low-power shutdown mode, thermal protection, and supports up to 256 units on the bus.

Feature Summary

• Fail-safe receiver guarantees a logic-high output when differential inputs are open or shorted.
• Slew-rate limited drivers minimize electromagnetic interference and reduce signal reflections.
• Low-power shutdown mode reduces supply current significantly when enabled.
• High input impedance allows connection of up to 256 transceivers on a single bus.

Applications

• RS-422/RS-485 communications
• Industrial-control local area networks
• Level translators
• Transceivers for EMI-sensitive applications

Procurement Notes

Verify the specific suffix 'CSD' indicates the commercial temperature range (0°C to +70°C) and 14-pin SOIC package. Confirm '+T' denotes tape-and-reel packaging if required by assembly equipment. Cross-reference the manufacturer's latest ordering guide to ensure the component remains active and matches the intended pinout compatibility with industry-standard devices like the 75180.

Selection Notes

Select this model for full-duplex applications requiring reduced EMI at speeds up to 115kbps. Ensure the system operates within the specified +5V supply voltage range. Consider the MAX3086 series if higher transmission speeds up to 10Mbps are necessary without slew-rate limitations. Verify that the 14-pin SO package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-485 and RS-422 communication standards. The family shares common fail-safe features and low-power characteristics but varies in duplex mode, data rate capabilities, and package options. The MAX3080 specifically provides full-duplex operation with built-in slew-rate limiting for noise reduction.

Replacement Considerations

The datasheet notes pin-compatibility with the industry-standard 75180 device. Designers replacing legacy 75180 components should verify that the additional control pins (DE, RE) and internal pull-downs do not conflict with existing board traces.