MAX3232 3V to 5.5V Multichannel RS-232 Line Driver & Receiver IC SMD

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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-sp


  • Industrial PCs
  • Wired networking
  • Data center and enterprise networking
  • Battery-powered systems
  • PDAs
  • Notebooks
  • Laptops
  • Palmtop PCs
  • Hand-held equipment
Model MAX3232
Type Line Driver and Receiver
Package Style SMD
Drivers per package 2
Receivers per package 2
Logic voltage(Min.) 3.3V
Main supply voltage 5V
Data rate (Max) 250 kbps
Operating Temperature Range 0°C to 70°C
Country of Origin China


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