MAX3387E

PRODUCTION

3V, ±15kV ESD-Protected, AutoShutdown Plus RS-232 Transceiver for PDAs and Cell Phones

Separate Logic Supplies Ensure Compatibility with Mixed ASIC Logic Levels

Data Sheet (Rev. 3) Product Selection Table
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Overview

  • VL Pin for Compatibility with Mixed-Voltage Systems
  • ±15kV ESD Protection on Rx Inputs and Tx Outputs
  • Low 300µA Supply Current
  • Guaranteed 250kbps Data Rate
  • 1µA AutoShutdown Plus™ with Receivers Active
  • Meets EIA/TIA-232 Specifications Down to 3.0V

The MAX3387E 3V powered EIA/TIA-232 and V.28/V.24 is a communications interface with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. The MAX3387E has three receivers and three transmitters. All RS-232 inputs and outputs are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge method, ±8kV using the IEC 1000-4-2 Contact Discharge method, and ±15kV using the Human Body Model.

A proprietary low-dropout transmitter output stage enables true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. The MAX3387E is capable of running at data rates up to 250kbps while maintaining RS-232 compliant output levels.

The MAX3387E has a unique VL pin that allows interoperation in mixed-logic voltage systems. Both input and output logic levels are pin programmable through the VL pin. The MAX3387E is available in a space-saving TSSOP package.

Applications

  • Battery-Powered Applications
  • Cellular Data Cables
  • Handheld Equipment
  • PDAs and PDA Cradles
  • Peripherals
  • Subnotebook and Palmtop Computers
MAX3387E
3V, ±15kV ESD-Protected, AutoShutdown Plus RS-232 Transceiver for PDAs and Cell Phones
MAX3387E: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 6

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 2
MAX3248E
PRODUCTION +3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
MAX3386E
PRODUCTION 3.0V, ±15kV ESD-Protected RS-232 Transceivers for PDAs and Cell Phones
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Tools & Simulations

IBIS Model 1

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