MAX3388ECUG+T

Overview

The MAX3388ECUG+T is a 2.5V-powered RS-232 transceiver in a 24-pin TSSOP package, operating from 0°C to +70°C. It features three transmitters and two receivers with guaranteed data rates up to 460kbps. The device includes an internal dual charge pump requiring four 0.1µF capacitors for operation from a +2.5V supply. It provides ±15kV ESD protection on all RS-232 I/O pins using the Human Body Model and IEC 1000-4-2 standards. A dedicated VL pin allows compatibility with mixed-voltage logic systems ranging from 1.8V to 3.0V. Supply current is typically 300µA, dropping to 1µA in shutdown mode.

Feature Summary

• Integrated dual charge pump enables RS-232 compatible performance from a single low voltage supply without external inductors.
• Dedicated VL pin allows flexible interfacing with mixed-voltage logic systems by programmably setting input thresholds and output swing levels.
• Robust electrostatic discharge protection ensures reliability against high-voltage static events on all communication lines.
• Internal power switch facilitates powering of remote circuitry or hot-sync modules while maintaining low standby consumption.

Applications

• Subnotebook and palmtop computers
• Personal Digital Assistants (PDAs) and cradles
• Cell phone data cables and docking stations

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range of 0°C to +70°C. Confirm the '+T&R' designation corresponds to tape and reel packaging requirements for automated assembly processes. Ensure the component matches the original Maxim Integrated specifications before integration into production designs.

Selection Notes

Select this component when designing battery-powered handheld devices requiring full-duplex RS-232 communication at high speeds. The integrated charge pump simplifies board layout by eliminating bulky inductors. The separate VL supply pin is critical for systems mixing 1.8V baseband logic with standard RS-232 signaling levels.

Part Context

This part belongs to the MAX3388E/MAX3389E family of low-power RS-232 transceivers designed specifically for portable electronics. The MAX3388 variant lacks the active LOUT pin during shutdown found in the MAX3389. Both share identical electrical characteristics for standard serial communication interfaces in compact form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design constraints if considering alternative RS-232 transceivers.