(ACTIVE) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver


Functional diagram


The MAX3232 device consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.


  • RS-232 Bus-Terminal ESD Protection Exceeds
    ±15 kV Using Human-Body Model (HBM)
  • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU V.28 Standards
  • Operates With 3-V to 5.5-V VCC Supply
  • Operates up to 250 kbit/s
  • Two Drivers and Two Receivers
  • Low Supply Current: 300 µA Typical
  • External Capacitors: 4 × 0.1 µF
  • Accepts 5-V Logic Input With 3.3-V Supply
  • Alternative High-Speed Terminal-Compatible Devices (1 Mbit/s)
    • SN65C3232 (–40°C to 85°C)
    • SN75C3232 (0°C to 70°C)

All trademarks are the property of their respective owners.


Drivers Per Package 2   
Receivers Per Package 2   
Logic Voltage (Min) (V) 3.3   
Data Rate (Max) (kbps) 250   
Main Supply Voltage (Nom) (V) 3.3^5   
ESD HBM (kV) 15   
Rating Catalog   
Operating Temperature Range (C) -40 to 85^0 to 70   
Pin/Package 16SOIC^16SOIC^16SSOP^16TSSOP   

Companion Products

Technical Documents

Datasheet (1)

Application notes (1)

Other Products in Same Family

� Texas Instruments Inc. Privacy Terms