MAX232EJE

Overview

The MAX232EJE is a dual driver/receiver RS-232 transceiver from the MAX220–MAX249 family, designed for EIA/TIA-232E and V.28/V.24 interfaces using a single +5V supply. It features an internal charge pump generating ±10V without external bipolar supplies. The device provides two drivers and two receivers with full-duplex communication capability. Electrical specifications include a typical data rate of 120 kbps, a maximum propagation delay of 10 µs, and a supply current of 10 mA at +5V. It operates within a temperature range of -40°C to +85°C and is housed in a 16-pin DIP package.

Feature Summary

• Integrates dual charge-pump circuitry to generate required RS-232 voltage levels from a single +5V source
• Provides full-duplex signal translation between TTL/CMOS logic levels and RS-232 standards
• Eliminates the need for external bipolar power supplies or additional discrete components

Applications

• Interface translation for serial communication ports
• Multidrop RS-232 network connections
• Portable diagnostic equipment requiring low component count

Procurement Notes

Verify the specific suffix JE against official manufacturer documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for 16-pin DIP configurations. Cross-reference ordering information tables in the datasheet to validate availability and lead times through authorized distribution channels.

Selection Notes

Select this component when designing systems requiring standard RS-232 signaling with minimal external capacitance. Compare performance metrics such as slew rate and propagation delay against alternative models like the MAX232A if higher data rates are necessary. Confirm that the operating temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the MAX220–MAX249 series of +5V-powered multichannel RS-232 drivers and receivers. The family offers various pin counts and channel configurations to suit different interface needs. The MAX232 variant specifically provides two drivers and two receivers, making it suitable for basic point-to-point serial communication applications.

Replacement Considerations

The MAX232AEJE serves as a direct functional equivalent within the same product family. Verify that the replacement maintains identical electrical characteristics and physical dimensions for seamless integration into existing designs.