MAX232 Dual EIA-232 driver and receiver |

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Dual EIA-232 driver and receiver

Dual EIA-232 driver and receiver - MAX232

Recommended alternative parts

  • MAX232E  -  TI recommends MAX232E in new designs. The MAX232E is an improved direct drop-in replacement for the MAX232.
  • MAX3232E  -  This device has an extended VCC range (3 V), a higher data rate and IEC 61000-4-2 protection.
  • MAX3232  -  This device has an extended VCC range (3 V) and a higher data rate.


The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply. Each receiver converts TIA/EIA-232-F inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each driver converts TTL/CMOS input levels into TIA/EIA-232-F levels.


  • Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
  • Operates From a Single 5-V Power Supply With 1.0-µF Charge-Pump Capacitors
  • Operates up to 120 kbit/s
  • Two Drivers and Two Receivers
  • ±30-V Input Levels
  • Low Supply Current: 8 mA Typical
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
  • Upgrade With Improved ESD (15-kV HBM) and 0.1-µF Charge-Pump Capacitors is Available With the MAX202 Device

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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) ESD HBM (kV) Rating Operating temperature range (C) Package Group
MAX232 Order now 2     2     5     120     5     2     Catalog     -40 to 85
0 to 70    
PDIP | 16
SOIC | 16
SOIC | 16
SO | 16