MAX3237ECPWR

Overview

The MAX3237ECPWR is a single-channel RS-232 line driver and receiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mbit/s. The device is housed in a 28-pin Thin Shrink Small Outline Package (TSSOP). It functions as a true RS-232 transceiver compliant with EIA-232-F, TIA-232-F, and V.28 standards. The component is designed for industrial temperature ranges from 0°C to 70°C. It integrates Schmitt trigger inputs for noise immunity and includes shutdown capabilities to minimize power consumption during idle periods.

Feature Summary

• Single-channel architecture providing one driver and one receiver for simplified RS-232 communication links.
• Integrated charge pump circuitry eliminates the need for external capacitors when using small-value ceramic types.
• Low quiescent current operation with an active shutdown mode to extend battery life in portable applications.

Applications

• Industrial control systems requiring reliable serial communication over moderate distances.
• Portable instrumentation and handheld devices powered by single-cell lithium or alkaline batteries.
• Modem interfaces and computer peripheral connections adhering to standard RS-232 protocols.

Procurement Notes

Verify the specific suffix 'PWR' confirms the TSSOP-28 package and commercial temperature grade. Ensure compatibility with 3V to 5.5V logic levels. Confirm RoHS compliance status through official manufacturer documentation prior to integration into final assemblies.

Selection Notes

Select this component when a single full-duplex RS-232 channel is sufficient for the design. Compare against multi-channel variants if additional ports are required. Consider the TSSOP footprint constraints and verify that the 1 Mbit/s speed meets system timing requirements without excessive jitter.

Part Context

This part belongs to the MAX3237E family of low-power RS-232 transceivers. It shares functional similarities with other single-channel devices but is distinguished by its specific pinout and package configuration. The series emphasizes low power consumption and robust ESD protection for demanding environments.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify that substitute components maintain identical voltage ranges and interface standards. Ensure any replacement offers equivalent thermal performance and package dimensions for board retention.