1FEATURES
• VL Pin for Compatibility With Mixed-Voltage
Systems Down to 2.5 V on Logic Side
• Enhanced ESD Protection on RIN Inputs and
DOUT Outputs
– ±15-kV Human-Body Model
– ±15-kV IEC 61000-4-2, Air-Gap Discharge
– ±8-kV IEC 61000-4-2, Contact Discharge
• Low 300-μA Supply Current
• Specified 250-kbps Data Rate
• 1-μA Low-Power Shutdown
• Meets EIA/TIA-232 Specifications Down
to 3 V

APPLICATIONS
• Hand-Held Equipment
• PDAs
• Cell Phones
• Battery-Powered Equipment
• Data Cables

DESCRIPTION/ORDERING INFORMATION
The MAX3386E is a three-driver and two-receiver RS-232 interface device, with split supply pins for mixed-signal
operations. All RS-232 inputs and outputs are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge
method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model.
The charge pump requires only four small 0.1-μF capacitors for operation from a 3.3-V supply. The MAX3386E is
capable of running at data rates up to 250 kbps, while maintaining RS-232-compliant output levels.
The MAX3386E has a unique VL pin that allows operation in mixed-logic voltage systems. Both driver in (DIN)
and receiver out (ROUT) logic levels are pin programmable through the VL pin. The MAX3386E is available in a
space-saving thin shrink small-outline package (TSSOP).