Analog Devices MAX3387E Product Info

• V_L 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 V_L pin that allows interoperation in mixed-logic voltage systems. Both input and output logic levels are pin programmable through the V_L 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