MAX3222CUP+T

Overview

The MAX3222CUP+T is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +3.0V to +5.5V supply and features an internal dual charge pump requiring only four 0.1µF external capacitors. The device provides two drivers and two receivers, supporting full-duplex communication at guaranteed data rates up to 120kbps. It is housed in a 20-pin TSSOP package with an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrated dual charge pump eliminates the need for bipolar ±12V supplies
• Compatible with industry-standard MAX242 pinout and functionality
• Low-power shutdown mode reduces supply current to less than 1µA

Applications

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

Procurement Notes

Verify the component against official manufacturer documentation to confirm authenticity. Ensure the ordering suffix matches the required thermal and packaging specifications. Cross-reference the datasheet revision date to validate technical parameters before integration into production systems.

Selection Notes

Select this model when interfacing with standard RS-232 ports using a single low-voltage power source. It serves as a direct replacement for legacy MAX232 designs while offering improved power efficiency. Confirm that the 0°C to +70°C commercial temperature range meets the environmental requirements of the target application.

Part Context

This component belongs to the MAX3222/MAX3232/MAX3237/MAX3241 family of low-power RS-232 transceivers. The MAX3222 variant specifically provides two drivers and two receivers, distinguishing it from higher-channel models within the same series designed for more complex serial communication interfaces.

Replacement Considerations

The MAX3222CUP+T is functionally compatible with the industry-standard MAX232. Designers replacing older components should verify that the new charge-pump capacitor values align with the updated voltage requirements.