MAX1489ECSD+

Drivers, Receivers, Transceivers Overview

The MAX1489ECSD+ is a quad, low-power RS-232 line receiver designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 communications in harsh environments. It operates at a guaranteed data rate of 120kbps with a typical supply current of 350µA. The device features ±15kV electrostatic discharge (ESD) protection on each input, along with ±25V input voltage range capability. Outputs are TTL and CMOS compatible. It is available in a 14-pin SO package and functions within an operating temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced ESD protection withstands ±15kV Human Body Model and IEC1000-4-2 standards without latchup.
• Integrated input hysteresis and time-domain filtering eliminate the need for external noise suppression components.
• Low power consumption ensures minimal standby current draw during operation.
• Pin-compatible with legacy MC1489, SN75189, and DS1489 devices for easy upgrades.

Drivers, Receivers, Transceivers Applications

• PC Motherboards
• Modems
• Interfacing Data Terminal Equipment (DTE) with Data Circuit-Terminating Equipment (DCE)
• Equipment requiring IEC1000-4-2 Level 4 ESD protection

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'C' confirms the commercial temperature range of 0°C to +70°C. Confirm the 'SD' designation matches the required 14-pin Small Outline package type. Ensure the '+T' or standard tape-and-reel packaging aligns with automated assembly requirements if applicable. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust RS-232 reception in electrically noisy industrial settings. The integrated filtering and high ESD tolerance reduce bill-of-materials complexity by removing external protection diodes. Verify that the 120kbps speed meets system timing constraints before choosing over higher-speed alternatives.

Drivers, Receivers, Transceivers Part Context

This device belongs to the Maxim Integrated MAX1489E family of RS-232 receivers. It serves as a direct replacement for older Motorola and Texas Instruments equivalents. The series focuses on providing reliable signal integrity for serial communication links where environmental stability is critical.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes include the MC1489, MC14C89, SN75189, SN75C189, DS1489, and DS14C89. Verify that these alternatives meet the same ESD protection levels and supply current specifications for the target application environment.