MAX3237ECDWR

Overview

The MAX3237ECDWR is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3 V to 5.5 V power supply and supports data rates up to 1 Mb/s. The device integrates five drivers and three receivers, providing full-duplex communication capabilities. It features low supply current of 2 mA during operation and includes a shutdown mode for power conservation. The component offers 15 kV electrostatic discharge (ESD) protection on RS-232 lines and transceiver inputs/outputs. It is housed in a 28-pin SOIC package with surface mount installation.

Feature Summary

• Integrates five independent drivers and three receivers for complex serial communication interfaces
• Provides robust 15 kV ESD protection on all RS-232 signal lines and I/O pins
• Operates efficiently with low supply current and includes a dedicated shutdown pin for power management

Applications

• Industrial control systems requiring multiple RS-232 connections
• Portable instrumentation and medical devices needing low-power serial communication
• Data acquisition systems utilizing multichannel serial interfaces

Procurement Notes

Verify the specific suffix 'W' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the operating temperature range meets system requirements, as commercial grade variants typically support 0°C to +70°C. Cross-reference the manufacturer part number with distributor codes to avoid packaging discrepancies.

Selection Notes

Select this component when designing systems requiring five transmit and three receive channels within a single IC. Compare against the MAX3243E if the application requires more receivers than drivers. Verify that the 1 Mb/s data rate suffices for the target baud rates. Ensure the PCB layout accommodates the required external capacitors for charge pump functionality.

Part Context

This part belongs to the MAX3237E series of multichannel RS-232 transceivers. It shares core electrical specifications with the MAX3237ECDW but differs in packaging format. The series is designed for applications demanding high integration and low power consumption in portable electronics.

Replacement Considerations

The MAX3237ECDWG4 is a verified equivalent part number offering identical electrical characteristics and functionality. Both parts share the same pinout and performance metrics.