MAX3241EUI+T

Overview

The MAX3241EUI+T is a true RS-232 transceiver featuring three drivers and five receivers in a 28-pin TSSOP package. It operates from a single +3.0V to +5.5V supply using four external 0.1µF capacitors for its dual charge pump. The device guarantees data rates up to 120kbps, with typical operation reaching 235kbps. It includes shutdown functionality reducing supply current to less than 1µA while keeping receivers active. Receivers R1 and R2 provide always-active complementary outputs for monitoring without forward biasing protection diodes.

Feature Summary

• Integrated dual charge pump eliminates the need for bipolar ±12V supplies
• Always-on complementary receiver outputs enable external device monitoring during shutdown
• Shutdown mode reduces supply current to less than 1µA while maintaining receiver activity

Applications

• Battery-powered equipment
• Hand-held equipment
• Peripherals
• Datacom equipment

Procurement Notes

Verify the ordering suffix 'E' indicates an extended temperature range of -40°C to +85°C. Confirm the 'U' suffix corresponds to the 28-pin TSSOP package. Ensure the '+T' designation matches the required reel packaging format for surface-mount assembly processes.

Selection Notes

Select this component when interfacing TTL/CMOS logic with RS-232 standards on low-voltage systems. The high receiver count supports complex peripheral connections. Verify that the 120kbps guaranteed rate meets system timing requirements. Consider the always-active outputs if ring indicator detection is necessary during power-down states.

Part Context

This part belongs to the MAX32xx family of low-power RS-232 transceivers. It shares architectural similarities with the MAX3222 and MAX3232 but provides additional driver and receiver channels. The E-series variant extends the commercial grade parts into industrial temperature ranges.

Replacement Considerations

MAX3241CUI+