MAX3241CUI+T

Overview

The MAX3241CUI+T is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-pin TSSOP package. It operates from a single +3.0V to +5.5V supply and features three drivers and five receivers. The device guarantees data rates up to 120kbps, with typical operation reaching 235kbps. It utilizes a dual charge pump requiring only four 0.1µF external capacitors. Shutdown mode reduces supply current to less than 1µA while keeping receivers active. Complementary receiver outputs remain always active for monitoring.

Feature Summary

• Integrated dual charge pump eliminates the need for bipolar ±12V supplies
• Always-on complementary receiver outputs enable external device monitoring without forward biasing protection diodes
• Low-power shutdown mode extends battery life by reducing supply current below 1µA

Applications

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

Procurement Notes

Verify the component matches the exact part number MAX3241CUI+T, ensuring the 'C' suffix indicates the commercial temperature range of 0°C to +70°C and the '+T' denotes tape-and-reel packaging. Confirm authenticity through authorized distributors or direct manufacturer channels to avoid counterfeit components that may lack specified electrical performance.

Selection Notes

Select this component when designing systems requiring multiple serial ports with low power consumption. It is suitable for applications needing simultaneous transmission and reception on separate lines. Ensure the design accommodates the required four external 0.1µF capacitors for the charge pump circuitry within the specified voltage range.

Part Context

This device 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 MAX3241 is specifically optimized for mouse driveability and multi-port communication interfaces in portable electronics.

Replacement Considerations

MAX3241EUI+T offers the same functionality with an extended industrial temperature range (-40°C to +85°C). MAX3241CAI+T provides identical electrical characteristics in a 28-pin SSOP package instead of TSSOP.