MAX3232IDBE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Texas Instruments MAX3232IDBE4 is a dual RS-232 line driver/receiver IC supporting 3V to 5.5V supply operation with Schmitt-trigger inputs and EIA-232-F compliance. It integrates two drivers and two receivers with internal charge-pump capacitors, enabling UART-to-RS-232 conversion in a compact SOIC-16 package.

OBSOLETEIntegrated CircuitVerified Jun 2026
Package / Visual Reference
MAX3232IDBE4Small Outline Packages
Quick Facts
Manufacturer
Texas Instruments
Package
Small Outline Packages
Pin Count
16
Lifecycle
OBSOLETE
Category
Integrated Circuit
Temp Range
-40.0°C to 85.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of MAX3232IDBE4?

  • Operates from 3V to 5.5V supply covering both 3.3V and 5V logic systems without level shifting
  • Dual RS-232 drivers and receivers compliant with EIA-232-F and TIA-232-F standards
  • Schmitt-trigger receiver inputs for noise-immune signal detection in industrial environments
  • On-chip charge pump with four external 0.1µF capacitors generates ±5V RS-232 output swing
  • SOIC-16 package with ESD protection up to 15kV on RS-232 lines

What is MAX3232IDBE4 used for?

The MAX3232IDBE4 is widely used to connect microcontrollers and DSPs with RS-232 serial ports on industrial equipment, test instruments, and embedded computing boards. Its 3V to 5.5V supply range makes it a direct fit for 3.3V MCU systems such as ARM Cortex-M designs communicating with legacy RS-232 peripherals. It also serves in GPS receivers, barcode scanners, and factory automation terminals where reliable full-duplex RS-232 communication over cables up to 15m is needed.

What are the specifications of MAX3232IDBE4?

Pbfree CodeYes
YTEOL0
Additional FeatureCAN ALSO OPERATE WITH 5V SUPPLY
Differential OutputNO
Driver Number of Bits2
High Level Input Current-Max0.000001A
Input CharacteristicsSCHMITT TRIGGER
Interface IC TypeLINE TRANSCEIVER
Interface StandardEIA-232-F; TIA-232-F; V.28
JESD-30 CodeR-PDSO-G16
JESD-609 Codee4
Number of Functions2
Out Swing-Min10V
Output Low Current-Max0.0016A
Output PolarityINVERTED
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSSOP16,.3
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Cel)260
Qualification StatusNot Qualified
Receive Delay-Max300ns
Receiver Number of Bits2
Supply Current-Max1mA
Supply Voltage-Max3.6V
Supply Voltage-Min3V
Supply Voltage-Nom3.3V
Supply Voltage1-Max3.6V
Supply Voltage1-Min3V
Supply Voltage1-Nom3.3V
Surface MountYES
TechnologyBICMOS
Temperature GradeINDUSTRIAL
Terminal FinishNICKEL PALLADIUM GOLD
Terminal FormGULL WING
Terminal Pitch0.65mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
Transmit Delay-Max300ns
PackageSmall Outline Packages

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.60

Where can I find the MAX3232IDBE4 datasheet?

MAX3232IDBE4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for MAX3232IDBE4?

Compatible alternatives and drop-in replacements for MAX3232IDBE4:

MAX3232CDBTexas Instruments Line

Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →
MAX3232IDBRE4Texas Instruments

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →
MAX3232ECDBE4Texas Instruments

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →
MAX3232EIDBRE4Texas Instruments

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →
MAX3232IDBTexas Instruments

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →
MAX3232CDBRTexas Instruments

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, PDSO16

View Part →

Frequently Asked Questions

Can the MAX3232IDBE4 operate from a 3.3V rail, and what RS-232 output swing does it produce?

Yes, the MAX3232IDBE4 operates from 3V to 5.5V, including 3.3V systems. Its internal charge-pump circuit generates ±5V output swing on the RS-232 transmit lines, meeting EIA-232-F requirements for reliable communication over cables up to 15 meters without an external power supply.

How many serial channels does the MAX3232IDBE4 support for UART-to-RS-232 conversion?

The MAX3232IDBE4 integrates 2 RS-232 drivers and 2 receivers, supporting 2 full-duplex serial channels simultaneously. This makes it suitable for connecting a dual-UART microcontroller to two independent RS-232 devices or using one channel for data and one for handshaking signals, all from a single SOIC-16 IC.

When should a designer choose MAX3232IDBE4 over a 5V-only RS-232 transceiver?

MAX3232IDBE4 is the better choice when the host MCU runs on 3.3V, such as ARM Cortex-M or STM32 devices, because its 3V minimum supply eliminates the need for a 5V rail dedicated to the transceiver. The Schmitt-trigger inputs also add 0.5V hysteresis for noise rejection, reducing data errors in electrically noisy industrial environments where a standard 5V-only transceiver would require additional filtering.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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MOQFrom 1 piece
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OriginChina (Authorized)

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