MAX3232
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MAX3232

3.0V to 5.5V, Low-Power, Up to 1Mbps, True RS-232 Transceivers

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IBIS Model MAX3232 IBIS Model Download 20.29KB
Part Models 16
1ku List Price Starting From $3.05
Features
  • Integrated Features Saves Board Space and Simplifies Design
    • Charge Pump Circuitry Eliminates the Need for a Bipolar ±12V Supply
    • Wide Single-Supply Operation From +3V to +5.5V Supply
    • Always-On Extra Outputs Enable Monitoring of External Devices
  • Power Saving Extends Battery Life
    • 1µA Supply Current in Shutdown Mode While Receiver is Active (MAX3222, MAX3237, MAX3241)
Additional Details
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The MAX3222/MAX3232/MAX3237/MAX3241 transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1µF external charge-pump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in normal operating mode and 1Mbps in the MegaBaud™ operating mode.

The MAX3222/MAX3232 have 2 receivers and 2 drivers. The MAX3222 and MAX3232 are pin, package, and functionally compatible with the industry-standard MAX242 and MAX232, respectively.

The MAX3241 has 5 receivers and 3 drivers, while the MAX3237 has 3 receivers and 5 drivers. Receivers R1 (MAX3237/MAX3241) and R2 (MAX3241) have extra outputs in addition to their standard outputs. These extra outputs are always active, allowing external devices to be monitored without forward biasing the protection diodes in circuitry that may have VCC completely removed.

The MAX3222, MAX3232, and MAX3241 are available in space-saving TSSOP and SSOP packages with operating temperatures of either -40°C to +85°C or 0°C to 70°C.

Applications

  • Battery-Powered Equipment
  • Handheld Equipment
  • High-Speed Modems
  • Notebook, Subnotebook, and Palmtop Computers
  • Peripherals
  • Printers
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file View Data Sheet (Rev.10)
Documentation View All Documentation
IBIS Model MAX3232 IBIS Model Download 20.29KB
Part Models 16
1ku List Price Starting From $3.05
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MAX3232

Documentation

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Data Sheet

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UPDATED 05/29/2019
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MAX3222-MAX3241: 3.0V to 5.5V, Low-Power, Up to 1Mbps, True RS-232 Transceivers Data Sheet (Rev.10)

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UPDATED 06/01/2010
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MAX3222-MAX3241_cn: 3.0V至5.5V、低功耗、1Mbps、真RS-232收发器 Data Sheet (Rev.7)

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UPDATED 01/14/2015
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MAX3222-MAX3241_jp: 3.0V～5.5V、低電力、最大1Mbps、真のRS-232トランシーバ Data Sheet (Rev.7)

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Reliability Data

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UPDATED 01/12/2023
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MAX3232 Reliability Data redirect icon

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Technical Articles

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UPDATED 08/07/2003
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Determining Clock Accuracy Requirements for UART Communications redirect icon

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UPDATED 09/29/2003
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Interfacing the MAX1169 ADC to a PIC Microcontroller redirect icon

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UPDATED 09/04/2006
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MAX1169 ADC与PIC微控制器的接口 redirect icon

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UPDATED 07/04/2006
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PICマイクロコントローラ用のMAX1169 ADCのインタフェース redirect icon

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UPDATED 12/29/2000
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Guide to Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards redirect icon

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UPDATED 12/16/2015
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RS-232、RS-422及RS-485串行数据标准的选择及使用 redirect icon

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UPDATED 12/29/2000
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RS-232/RS-422/RS-485の活用方法、最適なシリアル通信を実現するには？ redirect icon

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UPDATED 11/19/2001
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Automatic Test Equipment on a Budget redirect icon

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UPDATED 08/16/2002
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New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection, and 3V Operation redirect icon

Design Note

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UPDATED 12/23/2004
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RS-232-Powered Temperature Sensor redirect icon

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Documentation

Technical Documents 8
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Data Sheet 1

MAX3222-MAX3241: 3.0V to 5.5V, Low-Power, Up to 1Mbps, True RS-232 Transceivers Data Sheet (Rev.10)

Reliability Data 1

MAX3232 Reliability Data

Design Note 1

RS-232-Powered Temperature Sensor

Technical Articles 5

Determining Clock Accuracy Requirements for UART Communications
Interfacing the MAX1169 ADC to a PIC Microcontroller
Guide to Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards
Automatic Test Equipment on a Budget
New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection, and 3V Operation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX3232CAE+ 16-SSOP-5.3_MM external-link
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MAX3232CAE+T 16-SSOP-5.3_MM external-link
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MAX3232CPE+ Plastic Dual-In-Line, Narrow (0.3in) external-link
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MAX3232CSE+ Small-Outline IC, Narrow (0.15in) external-link
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MAX3232CSE+T Small-Outline IC, Narrow (0.15in) external-link
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MAX3232CUE+ Thin Shrink Small-Outline Package external-link
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MAX3232CUE+T Thin Shrink Small-Outline Package external-link
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MAX3232CWE+ Small-Outline IC, Wide (0.3in) external-link
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MAX3232CWE+T Small-Outline IC, Wide (0.3in) external-link
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MAX3232EPE+ Plastic Dual-In-Line, Narrow (0.3in) external-link
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MAX3232ESE+ Small-Outline IC, Narrow (0.15in) external-link
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MAX3232ESE+T Small-Outline IC, Narrow (0.15in) external-link
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MAX3232EUE+ Thin Shrink Small-Outline Package external-link
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MAX3232EUE+T Thin Shrink Small-Outline Package external-link
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  • Material Declaration external-link
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MAX3232EWE+ Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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MAX3232EWE+T Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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Software & Part Ecosystem

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MAXPMBAE

Maxim Analog Essentials Collection of Peripheral Modules

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Maxim Analog Essentials Collection of Peripheral Modules

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MAXPMBAE
Maxim Analog Essentials Collection of Peripheral Modules

Features and Benefits

  • Data Converter, Interface, Clock, Sensor, and Other Modules Included to Address Many Design Needs
  • Plug in Modules Enable Rapid Hardware Prototyping
  • Proven Software Drivers Reduce Development Time
  • FPGA Configuration Files Included to Simplify Design Effort
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Product Detail

Maxim Analog Essentials is a collection of peripheral modules which can plug directly into any FPGA/CPU expansion port which follows the Pmod™ standard established by Digilent, Inc. The collection includes modules containing a wide variety of commonly used analog and mixed signal functions. The modules are supported by software which includes FPGA configuration files for three popular FPGA platforms: Avnet LX-9, Digilent Nexys 3 and Avnet ZEDBoard, as well as example programs to exercise and demonstrate each module. While the example programs demonstrate the module’s functionality, they are well partitioned and documented allowing the core routines to be easily cut and pasted into your own programs. The combination of plug-in simplicity and easy software integration allows for quick migration from idea to working prototype.

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UG-5483: Analog Essentials Getting Started Guide for Zedboard Download

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UG-5466: Analog Essentials Getting Started Guide for LX9 and Nexys3 Download

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MAXPMBAE

Maxim Analog Essentials Collection of Peripheral Modules

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