MAX3388ECUG+

Overview

The MAX3388ECUG+ is a 2.5V-powered RS-232 transceiver featuring three transmitters and two receivers in a 24-pin TSSOP package. It supports data rates up to 460kbps with ±15kV ESD protection on I/O pins. The device operates from a +2.35V to +3.0V supply, drawing 300µA during active mode and 1µA in shutdown. An integrated logic-level VL pin enables compatibility with mixed-voltage systems ranging from 1.8V to 3.0V. Internal dual charge pumps generate ±4.2V using four 0.1µF capacitors.

Feature Summary

• VL Pin for Compatibility with Mixed-Voltage Systems
• ±15kV ESD Protection on Rx Inputs, Tx Outputs, LIN, and SWIN
• Integrated Switch for Powering Remote Circuitry

Applications

• Subnotebook/Palmtop Computers
• PDAs and PDA Cradles
• Cell Phone Data Cables

Procurement Notes

Verify the component against official Maxim Integrated datasheets to confirm authenticity. Ensure the ordering suffix matches the required temperature range and packaging specifications. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Check RoHS compliance status before integration into final assemblies.

Selection Notes

Select this model when designing battery-powered handheld devices requiring low power consumption and high ESD robustness. The dedicated VL pin allows seamless interfacing with 1.8V baseband processors. Verify that the application requires exactly three transmitters and two receivers to utilize the full functionality of the TSSOP-24 package efficiently.

Part Context

This component belongs to the MAX3388E/MAX3389E family of 2.5V RS-232 transceivers designed specifically for portable electronics. It shares architectural similarities with the MAX3387E but differs in supply voltage requirements and receiver count. The ECUG suffix indicates an industrial temperature range and TSSOP packaging.

Replacement Considerations

MAX3388EEUG offers the same electrical characteristics with an extended -40°C to +85°C operating temperature range.