MAX3241EEWI-T

Overview

The MAX3241EEWI-T is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-SOIC surface-mount package. It operates on a single 3.0V to 5.5V supply and features three drivers and five receivers for full-duplex communication. The device supports data rates up to 1Mbps while maintaining standard RS-232 output voltage levels. Key electrical parameters include a propagation delay of 0.3µs, an operating supply current of 1mA, and ±15kV ESD protection on I/O and logic pins. It functions within a temperature range of -40°C to +85°C and utilizes four external 0.1µF capacitors for its dual charge pump.

Feature Summary

• Proprietary low-dropout transmitter output stage enables true RS-232 performance from a single 3.0V to 5.5V supply.
• Integrated dual charge pump requires only four small 0.1µF external capacitors for operation.
• Provides ±15kV human-body model ESD protection on both I/O and logic pins.

Applications

• Notebook, subnotebook, and palmtop computers
• Battery-powered equipment and handheld devices
• High-speed modems and peripherals

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as indicated by the '+' designation in related part numbers. Ensure the supplier provides official documentation to validate the component's authenticity and manufacturing origin.

Selection Notes

Select this component for applications requiring high ESD immunity and low power consumption in portable systems. Verify that the 28-SOIC footprint matches the PCB layout constraints. Ensure the system design accommodates the required four 0.1µF capacitors for the charge pump circuitry.

Part Context

This device belongs to the MAX32xxE series, which integrates enhanced ESD protection compared to earlier generations. It shares architectural similarities with the MAX3222, MAX3232, and MAX3237 but offers a higher pin count configuration suitable for complex serial interfaces requiring multiple transmit and receive channels.

Replacement Considerations

The MAX3241ECAI+G1Z serves as a pin-compatible alternative in SSOP-28 packaging. For wide-body SOIC requirements, verify compatibility with other MAX3241 variants. Always consult the latest datasheets to confirm electrical parameter alignment before substitution.