MAX232N Part Information

Details for MAX232N by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs

Part Description

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.

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Part Features

  • ESD Protection Exceeds JESD 22 u2013 2000-V Human-Body Model (A114-A)
  • Low Supply Current: 8 mA Typical
  • Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
  • Operates From a Single 5-V Power Supply With 1.0-u00b5F Charge-Pump Capacitors
  • Operates up to 120 kbit/s
  • Two Drivers and Two Receivers
  • Upgrade With Improved ESD (15-kV HBM) and
  • u00b130-V Input Levels

Part Specifications

Device Type RS232 Transceiver
IC Interface Type RS232
No. of Drivers 2Drivers
No. of Receivers 2Receivers
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Driver Case Style DIP
No. of Pins 16Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range MAX232x Family
Automotive Qualification Standard -
MSL -
IC Generic Number MAX232
SVHC No SVHC (27-Jun-2018)
RoHS Phthalates Compliant Yes
Base Number 232
Data Rate 120Kbps
Line Bus Drive Receive Transceiver Type RS-232
Logic Case Style DIP
Operating Temperature Range 0°C to +70°C
Supply Current 8mA
Supply Voltage Range 4.5V to 5.5V
Termination Type Through Hole
RoHS Compliant

Alternative Part Descriptions

  • MAX232N, Line Transceivers | RS Components
  • DRIVER/RECEIVER, RS232, 120KBPS, 5V, DIP; Device Type:RS232 Transceiver; IC Interface Type:RS232; No. of Drivers:2Drivers; No. of Receivers:2Receivers; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Driver Case Style:DIP; MSL:- RoHS Compliant: Yes | Newark Electronics
  • Dual Transmitter/Receiver RS-232 16-Pin PDIP Tube | Avnet America
  • Texas Instruments MAX232N Linear IC Dual EIA-232 Driver / Receiver | Rapid Electronics
  • RS232/V.24 Interface DIP16 | Schukat Electronic
  • 5-V dual channel 120kbps RS-232 line driver/receiver with +/-9V output & +/-2-kV ESD protection | Texas Instruments
  • Transceiver [Texas Instruments] MAX232N Transceiver | Distrelec

Engineeer Comments

RS232 is, in many ways, a living fossil. While the relatively low data rates don't qualify the protocol as a high-speed communication interface, it's robustness and ease of implementation nevertheless make it attractive.

One of Dallas Maxim's absolute evergreens is the MAX232- a nifty transceiver IC which makes use of a capacitor based voltage boosting circuit to generate the voltage levels needed for fullly protocol compliant RS232 communication.

Having a second source makes evergreens even more popular. Texas Instruments is an international semiconductor powerhouse, and has been offering a second source alternative for quite some time. If you ever need to perform a fully protocol compliant RS232 communication and don't have access to the needed voltage levels, don't burden your design with complex boost regulators.

Instead, do it like the elders have done - a MAX232, a few capacitors, and have a happy day. The part is available in a DIP housing: convenient for small scale production and prototyping.

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