MAX232AEWE

Overview

The MAX232AEWE is a dual-channel RS-232 transceiver designed for EIA/TIA-232E and V.28/V.24 interfaces. It operates from a single +5V supply, utilizing an internal charge pump to generate the required ±10V levels without external bipolar supplies. The device features two drivers and two receivers with full-duplex communication capability. Electrical specifications include a data rate of 200 kbps, a supply voltage range of 4.5V to 5.5V, and a typical operating current of 10 mA. It supports an extended industrial temperature range from -40°C to +85°C and is housed in a 16-pin Wide SOIC package.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external bipolar power supplies
• Enables single-supply operation using only a +5V source
• Provides full-duplex communication through dual independent drivers and receivers

Applications

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

Procurement Notes

Verify the specific suffix 'WE' corresponds to the 16-pin Wide SOIC package variant when sourcing components. Confirm that the 'A' designation aligns with the required -40°C to +85°C industrial temperature rating for your application environment. Ensure compatibility with the manufacturer's RoHS compliance requirements before finalizing procurement orders.

Selection Notes

Select this component when board space constraints prevent the use of external charge pump capacitors or bipolar power rails. It is suitable for applications requiring reliable serial communication at speeds up to 200 kbps. Consider alternative models within the MAX220-MAX249 family if shutdown modes or different pin counts are necessary for the system design.

Part Context

This part belongs to the MAX220–MAX249 family of line drivers and receivers. The family offers various configurations including integrated capacitors and different driver/receiver counts. The MAX232AEWE specifically provides the standard dual-driver/dual-receiver configuration optimized for general-purpose serial interface applications.

Replacement Considerations

The MAX232ACWE serves as a commercial grade replacement with a 0°C to +70°C range. The MAX232CWE is another variant within the same series offering similar functionality but potentially different performance characteristics regarding propagation delay.