MAX232EWE.C70401

Overview

The MAX232EWE is a dual driver/receiver RS-232 transceiver from the Analog Devices (Maxim Integrated) MAX232 family, designed for EIA/TIA-232E and V.28/V.24 communication interfaces. It operates on a single +5V power supply with a voltage range of 4.5V to 5.5V. The device features two drivers and two receivers supporting full-duplex communication at data rates up to 120 kb/s. It utilizes internal charge pumps to generate positive and negative voltages from the single supply, requiring only four external 0.1µF capacitors. The component is housed in a 16-pin SOIC package and supports surface-mount installation.

Feature Summary

• Integrates dual drivers and receivers for complete RS-232 signal conversion
• Operates from a single +5V power supply using internal charge pump technology
• Requires minimal external components, typically four 0.1µF capacitors
• Supports full-duplex data transmission over standard serial communication lines

Applications

• Industrial control systems requiring serial communication
• Modem interface circuits
• Portable instruments and bar code scanners
• Communication ports in embedded systems

Procurement Notes

Verify the specific suffix '.C70401' against official Analog Devices documentation to confirm it denotes a specific tape-and-reel packaging variant or customer-specific marking rather than a functional deviation. Ensure the ordering part number matches the exact datasheet specifications for the MAX232EWE series to avoid compatibility issues with existing designs.

Selection Notes

Select this component when designing systems that require robust RS-232 connectivity powered by a single 5V rail. It is suitable for applications needing moderate data rates up to 120 kbps. Compare with the MAX232EEWE if higher electrostatic discharge protection is required, or consider the MAX3232 for lower voltage operation or higher speed requirements.

Part Context

The MAX232EWE belongs to the widely adopted MAX232 family of multichannel RS-232 drivers and receivers. This series is engineered to simplify the interface between microprocessors and standard serial ports. The 'E' grade indicates an extended temperature range capability, making it suitable for broader environmental conditions compared to commercial-grade variants.

Replacement Considerations

Direct pin-compatible replacements include the MAX232ACWE and MAX232CWE, though these may differ in temperature ranges. For enhanced ESD protection, the MAX232EEWE is a verified substitute within the same package. Alternative low-voltage options like the MAX3232 require circuit adjustments due to different operating voltage ranges.