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Interface Transceivers MAX232
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MAX232, MAX232A

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+5V-Powered, Multichannel RS-232 Drivers/Receivers

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Product Details

See parametric specs for RS-232 Line Driver/Receivers

Key Features

Applications/Uses

See parametric specs for RS-232 Line Driver/Receivers
Parametric specs for RS-232 Line Driver/Receivers
# Rx 2
# Tx 2
VSUPPLY (V) 5
Data Rate (kbps) (min) 120
ICC (mA) (typ) 5
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 1
Package/Pins CDIP/16
LCC/20
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
Budgetary
Price (See Notes) 		$2.04 @1k
Compare products in Family
See parametric specs for RS-232 Line Driver/Receivers
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Simplified Block Diagram

Technical Docs

Data Sheet +5V-Powered, Multichannel RS-232 Drivers/Receivers Sep 10, 2019
App Note The Evolution of the RS-232 Transceivers
App Note Redundant-Transceiver RS-232 Link Has ±40V Overvoltage Protection
App Note IrDA and RS-232: A Match Made in Silicon
Tutorial Determining Clock Accuracy Requirements for UART Communications
Tutorial Choosing the Right RS-232 Transceiver
Tutorial Lower the Supply Current in Your RS-232 System
Tutorial Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for RS-232 Line Driver/Receivers
# Rx 2
# Tx 2
VSUPPLY (V) 5
Data Rate (kbps) (min) 120
ICC (mA) (typ) 5
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 1
Package/Pins CDIP/16
LCC/20
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
Budgetary
Price (See Notes) 		$2.04 @1k
Compare products in Family
See parametric specs for RS-232 Line Driver/Receivers

Key Features

  • Saves Board Space
  • Integrated Charge Pump Circuitry
    • Eliminates the Need for a Bipolar ±12V Supply
    • Enables Single Supply Operation from +5V Supply
  • Integrated Capacitors (MAX223, MAX233, MAX235, MAX245–MAX247)
  • Saves Power for Reduced Power Requirements
  • 5µW Shutdown Mode

Applications/Uses

  • Interface Translation
  • Multidrop RS-232 Networks
  • Portable Diagnostics Equipment

Description

The MAX220–MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available..

The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.

The MAX220–MAX249 are offered in 26 different packages with temperatures from 0 to +70°C up to -55°C to +125°C. See ordering information table at the end of the data sheet for all package and temperature options.

Simplified Block Diagram

MAX220, MAX232, MAX232A: Pin Configuration and Typical Operating Circuit MAX220, MAX232, MAX232A: Pin Configuration and Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet +5V-Powered, Multichannel RS-232 Drivers/Receivers Sep 10, 2019
App Note The Evolution of the RS-232 Transceivers
App Note Redundant-Transceiver RS-232 Link Has ±40V Overvoltage Protection
App Note IrDA and RS-232: A Match Made in Silicon
Tutorial Determining Clock Accuracy Requirements for UART Communications
Tutorial Choosing the Right RS-232 Transceiver
Tutorial Lower the Supply Current in Your RS-232 System
Tutorial Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .