MAX3232CDRE4

Overview

The MAX3232CDRE4 is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It integrates two drivers, two receivers, and dual charge pumps to facilitate communication between asynchronous controllers and serial port connectors. The device operates on a single 3-V to 5.5-V power supply and utilizes four external capacitors for charge pump functionality. It supports data rates up to 250 kbps with a maximum output slew rate of 30 V/µs. The component provides ±15-kV ESD protection on all RS-232 bus pins, exceeding TIA/EIA-232-F requirements. It is housed in a 16-pin SOIC package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates dual drivers and receivers with internal charge pumps for single-supply operation
• Provides ±15-kV ESD protection on all serial port connection terminals
• Complies with TIA/EIA-232-F interface standards
• Features low typical supply current consumption

Applications

• Computer and computer peripheral systems
• Portable equipment and handheld devices
• Battery-powered applications requiring RS-232 connectivity

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free packaging compliance as per Texas Instruments documentation. Confirm the package type corresponds to the standard SOIC-16 variant. Ensure the operating temperature grade matches the commercial range specifications. Cross-reference the manufacturer part number against official TI databases to validate authenticity and revision status before procurement.

Selection Notes

Select this component when designing systems requiring full-duplex RS-232 communication with moderate data rates up to 250 kbps. It is suitable for applications powered by 3-V or 5-V supplies where space efficiency is prioritized over high-speed performance. Consider alternative pin-compatible models if higher data rates or extended industrial temperature ranges are required.

Part Context

This component belongs to the MAX3232 family of RS-232 transceivers from Texas Instruments. The family includes variants with different package styles such as SSOP, TSSOP, and PDIP, as well as options with shutdown modes. The MAX3232 series is widely used for serial communication interfaces in consumer electronics and industrial control systems due to its reliability and low component count.

Replacement Considerations

The SN65C3232EDR is a pin-compatible alternative offering similar functionality. Other MAX3232 variants with different suffixes may serve as substitutes if package dimensions and electrical characteristics align with design requirements.