MAX3241ECAI+TG1Z

Overview

The MAX3241ECAI+TG1Z is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.0V to +5.5V supply and features three drivers and five receivers, providing complete serial port functionality. The device supports data rates up to 250kbps in standard mode and includes an internal dual charge pump requiring only four 0.1μF external capacitors. It offers enhanced ESD protection rated at ±15kV (Human Body Model) and ±8kV (IEC Contact Discharge). The component is housed in a 28-pin SSOP package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Complete serial port integration with three drivers and five receivers for notebook applications
• Internal dual charge pump voltage converter generating ±5.5V from a single low-voltage supply
• Enhanced electrostatic discharge protection on all transmitter outputs and receiver inputs
• Low-power shutdown mode maintaining active receivers while minimizing supply current

Applications

• Notebook and subnotebook computers
• Battery-powered equipment
• Cell-phone data cables

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and lead-free status. Confirm that the intended application environment falls within the specified commercial temperature range of 0°C to +70°C. Ensure that the system design accommodates the required four external 0.1μF capacitors for the internal charge pump operation.

Selection Notes

Select this component when a complete RS-232 interface with multiple receiver lines is required for portable computing devices. The integrated charge pump eliminates the need for external negative voltage generation. Verify compatibility with the target logic family voltages and ensure the PCB layout supports the necessary capacitor placement for stable charge pump performance.

Part Context

This part belongs to the MAX32xxE series of low-power, high-performance RS-232 transceivers designed for space-constrained mobile applications. The 'E' designation indicates enhanced ESD protection capabilities compared to earlier generations. The 'CAI' suffix specifies the 28-lead SSOP package variant suitable for surface-mount assembly.

Replacement Considerations

The MAX3241E is functionally compatible with industry-standard MAX232 devices regarding pinout and basic operation, though voltage requirements differ. Direct replacements should be verified against the official selector guide for equivalent driver/receiver counts and package dimensions.