MAX232DRE4

Overview

The MAX232DRE4 is a dual driver and receiver integrated circuit designed for RS-232 communication, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 120 kb/s. The device features two drivers and two receivers, providing full-duplex transmission capabilities. It is housed in a 16-pin SOIC package with surface-mount installation. The component includes internal charge pumps to generate the necessary voltages for RS-232 signaling without requiring external negative supplies.

Feature Summary

• Dual EIA-232 drivers and receivers for bidirectional serial communication
• Internal charge pump eliminates need for external negative voltage rails
• Single 5 V power supply operation compatible with standard logic levels

Applications

• RS-232 serial port interface circuits
• Modem connections
• Communications equipment
• Handheld terminals

Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's current datasheet to confirm compliance with RoHS directives and material composition requirements. Ensure the ordering information matches the tape-and-reel packaging format indicated by the 'DR' designation. Cross-reference the part number with official distributor catalogs to confirm availability status and lead times prior to procurement planning.

Selection Notes

Select this component when a dual-channel RS-232 transceiver is required for 5 V systems. Compare performance metrics such as data rate and operating temperature range against alternative parts like the MAX232DR or MAX232IDR if industrial temperature ranges are needed. Verify that the 16-SOIC package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the MAX232 family of single-supply RS-232 transceivers. It shares functional similarities with other variants in the series, differing primarily in packaging type, temperature rating, and environmental compliance markings. The 'E4' suffix typically denotes lead-free and RoHS-compliant construction within the manufacturer's product line.

Replacement Considerations

MAX232DR

FAQ

What is the maximum data rate supported by the MAX232DRE4?

The device supports data rates up to 120 kb/s.

Does the MAX232DRE4 require an external negative voltage supply?

No, it utilizes internal charge pumps to generate the necessary positive and negative voltages from a single 5 V supply.

What is the operating supply voltage range for this IC?

The recommended operating supply voltage range is 4.5 V to 5.5 V.