MAX232BEASE+

Overview

The MAX232BEASE+ is a dual driver/receiver RS-232 transceiver from the MAX220–MAX249 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply (4.5V to 5.5V) and utilizes an internal charge pump to generate ±10V for RS-232 signaling without external bipolar supplies. The device features two drivers and two receivers with full-duplex communication capability. It supports data rates up to 120 kbps and includes integrated ESD protection on receiver inputs. The component is housed in a 16-pin SOIC-Wide package and is rated for operation across the extended industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge-pump circuitry eliminates the need for external bipolar voltage supplies
• Provides ±15V output swing compliant with EIA/TIA-232E standards
• Includes built-in electrostatic discharge (ESD) protection on receiver inputs

Applications

• Interface translation between TTL/CMOS logic and RS-232 serial ports
• Multidrop RS-232 network connections
• Portable diagnostics equipment requiring single-supply operation

Procurement Notes

Verify the specific suffix 'BEASE+' against the manufacturer's official ordering information table to confirm the exact package type and temperature rating. Confirm RoHS compliance status as indicated in the datasheet documentation. Ensure the source document matches the intended revision level for accurate pinout and electrical specifications.

Selection Notes

Select this component when designing systems that require standard RS-232 communication but lack negative voltage rails. The MAX232BEASE+ is suitable for applications needing robust ESD protection and reliable performance within the -40°C to +85°C range. Verify that the required data rate does not exceed 120 kbps and that the 16-pin wide SOIC footprint fits the PCB layout constraints.

Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. The family offers various configurations including integrated capacitors and different pin counts to address space and power constraints. The MAX232 variant specifically provides two drivers and two receivers, serving as a foundational solution for legacy serial interface implementations.

Replacement Considerations

Compatible substitutes include other members of the MAX220–MAX249 family such as the MAX232CWE+ or MAX232EESE+, provided they match the required operating temperature range and package dimensions. Verify pin compatibility and electrical characteristics before substitution.