MAX3232IDWRE4

Overview

The MAX3232IDWRE4 is a dual driver/receiver RS-232 transceiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device features two drivers and two receivers for full-duplex communication, with an operating temperature range from -40°C to +85°C. It utilizes a 16-pin SOIC-Wide package and includes 15 kV ESD protection on all pins.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors in some configurations or reduces component count compared to older generations.
• Provides true RS-232 performance with guaranteed output voltages meeting EIA/TIA-232-F standards.
• Features low power consumption with a shutdown mode that reduces supply current to less than 1 µA.

Applications

• Industrial control systems requiring robust serial communication.
• Portable instrumentation and battery-powered devices.
• Modems and fax machines utilizing standard RS-232 interfaces.

Procurement Notes

Verify the suffix 'E4' indicates lead-free status and RoHS compliance per Texas Instruments documentation. Confirm the package type matches the design requirements, as the IDWR variant typically denotes a specific tape-and-reel packaging format for surface-mount assembly. Cross-reference the datasheet revision to ensure pinout compatibility with existing PCB layouts.

Selection Notes

Select this component when a dual-channel RS-232 interface is required for industrial environments. The wide operating temperature range makes it suitable for applications exposed to varying thermal conditions. Ensure the system voltage falls within the 3 V to 5.5 V range to maintain signal integrity and proper logic levels.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. It is an enhanced version offering improved performance over legacy parts while maintaining pin compatibility. The 'E4' suffix specifically identifies the environmental compliance and manufacturing lot details defined by Texas Instruments.

Replacement Considerations

Direct replacements include the MAX3232IDWR and MAX3232IDWG4. Verify that substitute parts maintain the same SOIC-Wide-16 package dimensions and electrical characteristics to ensure seamless integration without redesigning the host circuit board.