MAX232ACWE+T

Overview

The MAX232ACWE+T is a +5V-powered, multichannel RS-232 driver and receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V with a typical operating current of 10mA. The device supports full-duplex communication at data rates up to 200kb/s. It features two drivers and two receivers housed in a 16-pin SOIC package. The specified operating temperature range extends from 0°C to +70°C.

Feature Summary

• Integrates dual charge-pump circuitry to generate internal ±10V levels from a single +5V supply, eliminating the need for external bipolar power sources.

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 network connections
• Portable diagnostics equipment

Procurement Notes

Verify that the component matches the exact part number MAX232ACWE+T. Confirm the manufacturer is Analog Devices Inc. or Maxim Integrated. Ensure the package type is SOIC-16 and the temperature grade corresponds to the 'A' suffix (0°C to +70°C). Cross-reference the datasheet revision to ensure electrical characteristics align with design requirements.

Selection Notes

Select this component when designing systems requiring RS-232 communication without access to ±12V power rails. The integrated charge pump simplifies board layout by reducing external capacitor count compared to older generations. Verify that the 200kb/s data rate meets application needs and that the 0°C to +70°C industrial temperature range is sufficient for the operating environment.

Part Context

This device belongs to the MAX220–MAX249 family of line drivers and receivers designed for EIA/TIA-232E and V.28/V.24 interfaces. The MAX232 variant specifically provides two drivers and two receivers. The 'A' designation indicates an extended temperature range compared to standard commercial grades, while the '+T' suffix typically denotes tape-and-reel packaging.

Replacement Considerations

Compatible substitutes within the same family include MAX232CWE+T and MAX232AEWE+T. These variants share identical pinouts and core functionality but differ in temperature ratings and manufacturing lot specifications. Verify package dimensions and electrical parameters before substitution.