MAX1489EEPD

Drivers, Receivers, Transceivers Overview

The MAX1489EEPD is a quad, low-power line receiver designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 communications in harsh environments. It features ±15kV electrostatic discharge (ESD) protection on each input with a ±25V range, hysteresis, and time-domain filtering. The outputs are TTL and CMOS compatible, supporting a guaranteed data rate of 120kbps. Supply current is typically 350µA at VCC = 5V. The device operates within a temperature range of -40°C to +85°C and is housed in a 14-pin plastic DIP package.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced ESD protection withstands ±15kV Human Body Model and IEC1000-4-2 discharges without latchup
• Integrated input hysteresis and time-domain filtering eliminate the need for external components
• Low power consumption with typical supply current of 350µA
• Pin-compatible replacement for MC1489, SN75189, DS1489, and other legacy RS-232 receivers

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 'EPD' corresponds to the 14-pin Plastic DIP package and industrial temperature range (-40°C to +85°C). Confirm that the ordering information matches the exact component requirements before purchase. Cross-reference datasheet revision numbers to ensure compatibility with design specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust RS-232 reception in electrically noisy environments. The integrated ESD protection and filtering simplify board layout by removing the need for external transient suppression or noise filters. Ensure the application voltage remains within the specified 5V ±10% range for optimal performance.

Drivers, Receivers, Transceivers Part Context

The MAX1489E belongs to Maxim Integrated's family of low-power RS-232 interface devices. It serves as a direct pin-compatible upgrade for older generation receivers like the MC1489 and SN75189. This series focuses on providing enhanced reliability and reduced power consumption while maintaining standard RS-232 signal levels and timing characteristics.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible replacements include the MC1489, MC14C89, SN75189, SN75C189, DS1489, and DS14C89. Verify that substitute parts meet the required ESD protection levels and operating temperature ranges if replacing in existing designs.

Drivers, Receivers, Transceivers FAQ

Does the MAX1489EEPD require external filtering components?

No, the device features built-in input hysteresis and time-domain filtering, which eliminates the need for external filtering components.

What is the maximum ESD protection rating for the inputs?

The inputs are protected against ±15kV electrostatic discharge shocks using the Human Body Model and ±15kV via Air-Gap Discharge per IEC1000-4-2.

Is the MAX1489EEPD compatible with TTL and CMOS logic?

Yes, the outputs are TTL and CMOS compatible, allowing direct interfacing with standard digital logic families.