MAX202CDWR

Drivers, Receivers, Transceivers Overview

The MAX202CDWR is a dual RS-232 line driver and receiver manufactured by Texas Instruments, designed for asynchronous communication controllers. It operates from a single 4.5 V to 5.5 V power supply using internal charge pumps that require four small external capacitors. The device provides two drivers and two receivers, supporting data rates up to 120 kbps with an output voltage swing of ±6 V to ±9 V. It features Schmitt-trigger inputs on the receivers for noise immunity and includes ±15-kV ESD protection on all pins. The component is housed in a 16-pin SOIC package and complies with TIA/EIA-232-F standards.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge pump circuitry enables operation from a single 5-V supply without requiring negative voltages.
• Provides robust ±15-kV electrostatic discharge (ESD) protection across all pins, including ground.
• Schmitt-trigger receiver inputs ensure clean signal transitions and improved noise immunity in noisy environments.

Drivers, Receivers, Transceivers Applications

• Serial port connections between microcontrollers and DB9/DB25 connectors.
• Industrial control systems requiring reliable RS-232 communication interfaces.
• Point-of-sale (POS) terminals and embedded communication devices.

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm package type and temperature range. Ensure the ordering part number matches the required RoHS compliance status and lead time requirements. Cross-reference the manufacturer's official lifecycle status to confirm availability before finalizing procurement plans.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-channel RS-232 interface is needed with high ESD tolerance. It is suitable for designs constrained to a single 5-V power rail. Compare pin compatibility with legacy MAX202 designs if replacing existing circuits. Verify that the 120 kbps speed meets the application's timing requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX202 family of RS-232 transceivers, which are industry-standard solutions for serial communication. The 'C' indicates commercial temperature range, while 'DWR' specifies the 16-pin SOIC package with tape-and-reel packaging. It serves as a direct functional replacement for older MAX202 variants within the same electrical specifications.

Drivers, Receivers, Transceivers Replacement Considerations

The TRS202CDWR is a verified equivalent offering identical functionality and pinout. Check the MAX202CDWRE4 for RoHS-compliant versions. Confirm that any substitute maintains the same 16-pin SOIC footprint and electrical characteristics.