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MAX3232

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3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV ESD protection

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3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV ESD protection

MAX3232

ACTIVE
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Product details

Parameters

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 Vout (Typ) (V) 5.4 open-in-new Find other RS-232 transceivers

Package | Pins | Size

SOIC (D) 16 59 mm² 9.9 x 6 SOIC (DW) 16 77 mm² 7.52 x 10.28 SOIC (DW) 16 77 mm² 10.3 x 7.5 SSOP (DB) 16 48 mm² 6.2 x 7.8 TSSOP (PW) 16 22 mm² 5 x 4.4 TSSOP (PW) 16 22 mm² 4.4 x 5 open-in-new Find other RS-232 transceivers

Features

  • 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)
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Description

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.

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Pin-for-pin with same functionality to the compared device.
TRS3232E ACTIVE 3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection The device has the SAME FUNCTIONALITY/PINOUT as the compared device but includes enhanced IEC61000-4-2 ESD protection. TI recommends the TRS3232E in new designs

Technical documentation

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Type Title Date
* Data sheet MAX3232 3-V to 5.5-V Multichannel RS-232 Line Driver and Receiver With ±15-kV ESD Protection datasheet (Rev. O) Jun. 22, 2021
Technical article How to choose a TVS diode for RS-232, RS-485 and CAN based on voltage ratings Nov. 13, 2017

Design & development

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CAD/CAE symbols

Package Pins Download
SOIC (D) 16 View options
SOIC (DW) 16 View options
SSOP (DB) 16 View options
TSSOP (PW) 16 View options

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