MAX3238ECDW

Overview

The MAX3238ECDW is a multichannel 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 full-duplex communication with five drivers and three receivers. The device features Schmitt-trigger inputs for noise immunity and includes shutdown functionality to minimize power consumption. It is housed in a 28-pin SOIC package and is rated for an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Multichannel RS-232 transceiver with five drivers and three receivers
• Integrated shutdown mode for low-power operation
• Schmitt-trigger inputs provide enhanced noise filtering
• Supports standard RS-232 signaling levels

Applications

• Industrial control systems requiring robust serial communication
• Data acquisition equipment interfaces
• Embedded systems with multiple RS-232 ports

Procurement Notes

Verify the specific suffix ECDW against the manufacturer's current datasheet to confirm package type, temperature grade, and RoHS compliance status. Ensure the source document explicitly identifies the component as a Texas Instruments product rather than a distributor listing. Cross-reference the part number with official obsolescence notices if available.

Selection Notes

Select this component when a single IC provides multiple independent RS-232 channels without requiring external charge pumps. Verify that the 28-pin SOIC footprint matches the PCB layout constraints. Confirm that the -40°C to +85°C temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the MAX3238 family of multichannel RS-232 transceivers. It shares functional similarities with other members like the MAX3237E but offers a higher channel count. The ECDW designation specifically indicates the industrial temperature range and SOIC package variant within the broader product line.

Replacement Considerations

Publicly confirmed substitutes include the TRS3238ECDW and TRSF3238EIDWR. These alternatives offer similar pinouts and functionalities but may differ in data rate specifications or manufacturing origin. Verify electrical compatibility before substitution.