MAX3386E RS-232 Transceiver With Split Supply Pin for Logic Side |

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RS-232 Transceiver With Split Supply Pin for Logic Side


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  • TRS3386E  - The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device. 


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).


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


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Part number Order Drivers per package Receivers per package Logic voltage (Min) (V) Data rate (Max) (kbps) Main supply voltage (Nom) (V) Features ESD HBM (kV) Rating Operating temperature range (C) Package Group
MAX3386E Order now 3     2     3.3     250     2.5     Powerdown     15     Catalog     -40 to 85
0 to 70    
SOIC | 20
TSSOP | 20