MAX1489ECPD

Drivers, Receivers, Transceivers Overview

The MAX1489ECPD 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 receiver input, which also supports a ±25V input voltage range with hysteresis and time-domain filtering. The outputs are TTL and CMOS compatible, ensuring reliable signal transmission. The device guarantees a data rate of 120kbps and operates with a typical supply current of 350µA. It is available in a 14-pin plastic DIP package and functions within an operating temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced ESD protection rated at ±15kV Human Body Model and ±8kV IEC1000-4-2 Contact Discharge
• Input hysteresis and time-domain filtering eliminate the need for external filtering components
• Latchup-free operation during ESD events ensures robust performance in harsh environments
• Pin-compatible 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 or ±15kV ESD Protection

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CPD' against official documentation to confirm the commercial temperature grade (0°C to +70°C) and PDIP-14 packaging. Ensure compatibility with existing board layouts if replacing older MC1489 or SN75189 variants. Confirm that the design accounts for the 350µA typical supply current and bypass requirements for optimal ESD resilience.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing RS-232 interfaces requiring high ESD immunity without external protection circuits. It is suitable for applications needing low power consumption and stable input thresholds. Verify that the 120kbps guaranteed data rate meets system timing requirements. Consider the 14-pin DIP package constraints for through-hole assembly processes.

Drivers, Receivers, Transceivers Part Context

The MAX1489E belongs to Maxim Integrated's family of low-power RS-232 receivers. It serves as a direct replacement for standard quad receivers like the MC1489 and SN75189 while offering superior ESD protection characteristics. The device simplifies design by integrating filtering and protection directly into the silicon, reducing bill-of-materials complexity for industrial and consumer electronics.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes include MC1489, MC14C89, SN75189, SN75C189, DS1489, and DS14C89.