MAX3232ICAE

Overview

The MAX3232ICAE is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 3.0V to 5.5V and supports data rates up to 1Mbps. The device features two drivers and two receivers for full-duplex communication. It utilizes an internal charge pump to generate voltages from a single power source, requiring only four external 0.1µF capacitors. Packaged in SSOP-16, it is designed for applications requiring reliable serial communication with minimal external component count.

Feature Summary

• Integrates dual drivers and dual receivers for full-duplex RS-232 communication
• Operates on a single 3.0V to 5.5V power supply using internal charge pump technology
• Requires only four small external capacitors for operation
• Provides low-power performance suitable for battery-operated systems

Applications

• Portable computers and handheld devices
• Modems and portable instruments
• PDA and cellular phones
• Communications equipment requiring RS-232 connectivity

Procurement Notes

Verify the exact suffix 'ICAE' against official Analog Devices documentation, as standard listings typically use 'CAE', 'ESE', or 'CSE'. Confirm availability status through authorized distributors, as lead times may vary. Ensure the package type matches SSOP-16 specifications. Cross-reference RoHS compliance details with the specific manufacturing batch. Validate that the component meets the required operating temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a low-power RS-232 solution is needed for single-supply systems. It is appropriate for designs where minimizing external capacitor count is critical. Consider the 1Mbps data rate limit for high-speed requirements. Evaluate the SSOP-16 package constraints for PCB layout. Compare against other MAX32xx variants if different pinouts or extended temperature ranges are required.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers. The family is known for its ability to operate from a single 3V to 5.5V supply while providing standard RS-232 signal levels. Variants like CAE, ESE, and CSE differ primarily in package type and temperature range. The MAX3232 series is widely used in legacy serial communication interfaces.

Replacement Considerations

Direct substitutes include MAX3232CAE+, MAX3232ESE+, and MAX3232CSE+. Verify package compatibility (SSOP vs SOIC) and temperature range extensions. Ensure functional equivalence regarding driver/receiver counts and data rates.