MAX3380EEUP+T

Overview

The MAX3380EEUP+T is a dual-transmitter, dual-receiver RS-232 transceiver manufactured by Analog Devices/Maxim Integrated. It operates on a supply voltage range of +2.35V to +5.5V and supports data rates up to 460kbps. The device features ±15kV ESD protection on all CMOS and RS-232 I/O pins using the Human Body Model and IEC 1000-4-2 Air-Gap Discharge methods. It incorporates an AutoShutdown Plus feature that reduces supply current to 1µA when no signal transitions are detected for 30 seconds. The component utilizes a dual-mode regulated charge pump requiring four small capacitors and includes a dedicated VL pin for logic level compatibility down to +1.65V. It is housed in a 20-pin TSSOP package.

Feature Summary

• AutoShutdown Plus technology automatically enters ultra-low power mode after 30 seconds of inactivity
• Integrated dual-mode charge pump enables operation from lithium-ion battery voltages down to +2.35V
• Robust ±15kV ESD protection on both RS-232 and logic pins ensures reliability in harsh environments
• Dedicated VL pin allows seamless interfacing with mixed-logic voltage systems

Applications

• Cell phone data lump cables
• PDA data lump cables
• GPS receivers
• Digital cameras

Procurement Notes

Verify the specific suffix 'EEUP' corresponds to the industrial temperature range (-40°C to +85°C) and TSSOP-20 packaging as documented in official Maxim Integrated ordering information. Confirm RoHS compliance status associated with the '+T' designation through manufacturer datasheets or authorized distributor documentation before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring low-voltage operation compatible with Li+ batteries and high-speed data transmission up to 460kbps. Ensure the system design accommodates the required external capacitors for the charge pump and considers the separate VL supply pin for logic level translation needs in mixed-voltage environments.

Part Context

This part belongs to the MAX3380E/MAX3381E family of RS-232 transceivers designed for portable electronics. The MAX3380E variant specifically supports higher data rates compared to the MAX3381E. Both share similar architectural features including low-power shutdown modes and enhanced ESD protection, targeting the mobile communication and peripheral connectivity markets.

Replacement Considerations

Publicly confirmed substitute part numbers include MAX3381EEUP+T, which offers identical functionality but with a reduced maximum data rate of 250kbps. Designers should verify if the lower baud rate meets application requirements before substituting.