MAX1489EEPD+

Drivers, Receivers, Transceivers Overview

The MAX1489EEPD+ is a quad, low-power RS-232 line receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply with a typical current consumption of 350µA and supports data rates up to 120kbps. The device features ±15kV ESD protection on all inputs, input hysteresis of 1.11V, and TTL/CMOS compatible outputs. It is housed in a 14-pin Plastic DIP package (0.300 inch width) and is rated for an industrial operating temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced electrostatic discharge protection capable of withstanding ±15kV human body model discharges without latchup.
• Integrated input hysteresis and time-domain filtering to eliminate the need for external noise suppression components.
• Low power consumption design suitable for battery-operated or energy-efficient systems.
• Direct pin compatibility with legacy MC1489, SN75189, and DS1489 devices.

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'EEPD+' corresponds to the extended temperature range (-40°C to +85°C) and 14-pin PDIP package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering code matches the exact package style required for the target PCB footprint.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing RS-232 interfaces that require robust noise immunity in harsh environments. The integrated hysteresis makes it suitable for applications with long cable runs or high electromagnetic interference. Verify that the system logic levels are compatible with the TTL/CMOS output requirements before finalizing the schematic.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1489E family of quad line receivers designed for EIA/TIA-232 communications. It serves as a direct replacement for older generation receivers like the MC14C89 and SN75C189 while offering superior ESD resilience. The EE suffix denotes the industrial temperature grade, distinguishing it from commercial variants.

Drivers, Receivers, Transceivers Replacement Considerations

Pin-compatible substitutes include MC1489, MC14C89, SN75189, SN75C189, DS1489, and DS14C89. Verify that alternative sources meet the same ±15kV ESD protection specifications and 120kbps data rate guarantees.

Drivers, Receivers, Transceivers FAQ

Does the MAX1489EEPD+ include transmitter drivers?

No, the MAX1489EEPD+ is a line receiver only. It does not contain transmitters; it must be paired with a separate driver IC such as the MAX1488E for full duplex communication.

What is the input voltage range of the MAX1489EEPD+?

The receiver inputs can withstand a voltage range of ±25V, providing tolerance against common RS-232 signal swings and transient events.

How does the device handle noise on the input lines?

The device features built-in input hysteresis (typically 1.11V) and time-domain filtering, which reject noise pulses and eliminate the need for external RC filters.