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2/2 Transceiver Full RS232 16-SOIC

MAX3232ECDWR General Description

The MAX3232ECDWR is a versatile device that satisfies the requirements of TIA/EIA-232-F, providing a reliable electrical interface between asynchronous communication controllers and serial-port connectors. Its dual charge-pump circuit ensures operation from a single 3-V to 5.5-V supply, making it an excellent choice for various applications

Key Features

  • ESD protection for RS-232 bus pins
    • ±15 kV (HBM)
    • ±8 kV (IEC61000-4-2, Contact discharge)
    • ±15 kV (IEC61000-4-2, Air-gap discharge)
  • 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
  • Pin compatible to alternative high-speed devices (1 Mbit/s)
    • SN65C3232E (–40°C to +85°C)
    • SN75C3232E (0°C to 70°C)


Logic voltage (min) (V) 3.3 Data rate (max) (MBps) 0.25
Main supply voltage (nom) (V) 3.3, 5 ESD HBM (kV) 15
Rating Catalog Operating temperature range (°C) -40 to 85, 0 to 70
Vout (typ) (V) 5.4 Product Category RS-232 Interface IC
Mounting Style SMD/SMT Series MAX3232E
Function Transceiver Data Rate 250 kb/s
Number of Drivers 2 Driver Number of Receivers 2 Receiver
Duplex Full Duplex Supply Voltage - Max 5.5 V
Supply Voltage - Min 3 V Operating Supply Current 1 mA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
ESD Protection 15 kV Height 2.65 mm
Length 10.5 mm Operating Supply Voltage 3.3 V, 5 V
Product RS-232 Transceivers Product Type RS-232 Interface IC
Factory Pack Quantity 2000 Subcategory Interface ICs
Supply Type Single Supply Width 7.6 mm
Unit Weight 0.014829 oz

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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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