MAX232EEPE

Overview

The MAX232EEPE+ is a single-supply RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +4.5V to +5.5V supply and integrates dual charge-pump circuits to generate the required ±10V levels, eliminating the need for external bipolar power supplies. The device contains two drivers and two receivers, supporting full-duplex communication at data rates up to 120kbps. It features high electrostatic discharge protection of ±15kV (Human Body Model) on all RS-232 inputs and outputs. The component is housed in a 16-pin Plastic DIP package and is rated for an extended industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge-pump voltage converters enable operation from a single +5V supply without requiring external negative voltage rails.
• High ±15kV Human Body Model ESD protection on driver outputs and receiver inputs ensures reliability in harsh environments.
• Receiver inputs feature guaranteed tight input thresholds with approximately 0.5V hysteresis for clean output transitions.
• Driver outputs are designed to meet EIA/TIA-232E specifications under worst-case conditions including minimum supply voltage and maximum temperature.

Applications

• Battery-powered equipment
• Hand-held equipment
• Portable diagnostics equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature rating. Ensure that any additional characters in the part number correspond strictly to packaging variations or environmental grades as defined in the datasheet. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability status and compliance with RoHS directives.

Selection Notes

Select this component when designing systems requiring robust RS-232 communication with integrated ESD protection. The MAX232EEPE+ is suitable for applications where space savings from eliminating bipolar supplies are critical. Verify that the system's capacitive load does not exceed limits that would degrade signal integrity at the target data rate. Confirm that the 1μF external charge-pump capacitors are compatible with the operating temperature range.

Part Context

The MAX232EEPE+ belongs to the MAX202E–MAX213E and MAX232E/MAX241E family of RS-232 transceivers. This family is characterized by its rugged 'E' versions which provide enhanced ESD protection compared to standard non-E variants. The device shares architectural similarities with other Maxim single-supply RS-232 chips but is distinct in its specific pinout configuration and capacitor requirements for the charge pump circuitry.

Replacement Considerations

Direct functional replacements within the same family include the MAX232ECPE+ (commercial temperature range) or MAX232CWE+ (surface mount). For applications requiring shutdown control, consider the MAX232EPE+ if available, though the base MAX232E lacks shutdown pins. Verify pin compatibility before substituting.