MAX3232ESE+ Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: MAX3232ESE+
Brand: Analog Devices
SKU: MAX3232ESE+
Availability: InStock

The MAX3232ESE+ is a 2-driver/2-receiver RS-232 line transceiver IC from Analog Devices operating from a single 3.3 V supply with an external charge pump generating ±5.5 V RS-232 output levels. It features Schmitt-trigger inputs and complies with TIA/EIA-232 in a 16-pin SOIC package. Available in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MAX3232ESE+Small Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: MAX3232ESE+ Datasheet PDF
Category: Integrated Circuit
Price: From $0.8694(MOQ 1)
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 MAX3232ESE+?

Dual RS-232 driver and dual receiver operating from a single 3.3 V supply with external charge-pump capacitors generating compliant ±5.5 V TIA/EIA-232 output levels
Schmitt-trigger receiver inputs provide noise immunity on RS-232 lines, handling input signals from ±3 V up to ±15 V for robust serial communication
Compact 16-pin SOIC (150 mil) package with low 1 µA shutdown current enables easy integration in space-constrained embedded serial port designs

What is MAX3232ESE+ used for?

The MAX3232ESE+ is used to implement RS-232 serial communication ports on 3.3 V MCU-based embedded systems, converting CMOS logic levels to compliant ±5.5 V RS-232 voltage swings without a negative supply. It is commonly deployed in industrial PLCs, GPS receivers, barcode scanners, and point-of-sale terminals that require RS-232 connectivity to legacy PC serial ports or industrial SCADA equipment. Telecom and networking boards that need a low-power RS-232 interface with Schmitt-trigger noise rejection also benefit from this device's 1 µA standby current.

What are the specifications of MAX3232ESE+?

Manufacturer Package Code	16-SOIC_N-150_MIL
Date Of Intro	1996-05-23
YTEOL	9
Additional Feature	EXTERNAL CHARGE PUMP
Differential Output	NO
Driver Number of Bits	2
High Level Input Current-Max	0.000001A
Input Characteristics	SCHMITT TRIGGER
Interface IC Type	LINE TRANSCEIVER
Interface Standard	EIA-232; TIA-232
JESD-30 Code	R-PDSO-G16
JESD-609 Code	e3
Number of Functions	2
Out Swing-Min	10V
Output Characteristics	TOTEM-POLE
Output Low Current-Max	0.0016A
Output Polarity	INVERTED
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP16,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Receiver Number of Bits	2
Supply Current-Max	1mA
Supply Voltage-Max	5.5V
Supply Voltage-Min	3V
Supply Voltage-Nom	3.3V
Surface Mount	YES
Technology	CMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
## MAX3232ESE+ Alternates Showing results	Image
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.60
Country of Origin	Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

Where can I find the MAX3232ESE+ datasheet?

MAX3232ESE+ Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for MAX3232ESE+?

Compatible alternatives and drop-in replacements for MAX3232ESE+:

1933244

suggested

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

How does MAX3232ESE+ generate RS-232-compliant output levels from a 3.3 V single supply?

The MAX3232ESE+ includes an internal charge-pump voltage doubler and inverter that use four external 0.1 µF capacitors to generate an on-board ±5.5 V rail from the 3.3 V supply. The two RS-232 drivers source output voltages between +5.5 V and -5.5 V on the transmit lines, fully meeting the TIA/EIA-232 specification that requires driver output voltages of at least ±5 V under 3 kΩ to 7 kΩ load.

What input voltage range do the MAX3232ESE+ receivers tolerate, and how do Schmitt-trigger inputs improve noise immunity?

The MAX3232ESE+ receivers accept RS-232 input signals across the full ±15 V cable range. The Schmitt-trigger input characteristic provides approximately 500 mV of hysteresis, meaning the receiver does not toggle state due to noise or slow signal edges unless the input crosses two distinct threshold voltages. This is critical for long cable runs at 9600 baud or higher where capacitive loading causes slow edges prone to ringing.

Can MAX3232ESE+ replace a 5 V RS-232 transceiver like MAX232 in a 3.3 V redesign without circuit changes?

The MAX3232ESE+ is pin-compatible with the MAX232 and requires the same four 0.1 µF charge-pump capacitors, so a 5 V MAX232 design can be converted to a 3.3 V MAX3232ESE+ by changing only the supply voltage rail connection. However, designers should verify that the 3.3 V logic levels on the TTL side match the new MCU's output drive and that the PCB decoupling capacitors are rated for the 3.3 V supply — no RS-232 side changes are needed.

What shutdown current does the MAX3232ESE+ draw, and how does it benefit battery-powered serial port designs?

In shutdown mode, the MAX3232ESE+ draws only 1 µA maximum from the 3.3 V supply, compared to its typical active current of around 0.3 mA. For a battery-powered handheld terminal or GPS tracker that uses the RS-232 port only occasionally, enabling shutdown between data transfers can extend battery life by tens to hundreds of hours over continuous operation of a non-shutdown RS-232 transceiver drawing several milliamps.

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About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.

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AvailabilityIn Stock

Reference Price (USD)

From $0.8694

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$4.8332	$4.83
215+	$0.9400	$202.10
280+	$0.9047	$253.32
350+	$0.8694	$304.29

pcs

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OriginChina (Authorized)

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MAX3232ESE+ Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of MAX3232ESE+?

What is MAX3232ESE+ used for?

What are the specifications of MAX3232ESE+?

Compliance & Regulatory

Where can I find the MAX3232ESE+ datasheet?

What are equivalent replacements for MAX3232ESE+?

Frequently Asked Questions

How does MAX3232ESE+ generate RS-232-compliant output levels from a 3.3 V single supply?

What input voltage range do the MAX3232ESE+ receivers tolerate, and how do Schmitt-trigger inputs improve noise immunity?

Can MAX3232ESE+ replace a 5 V RS-232 transceiver like MAX232 in a 3.3 V redesign without circuit changes?

What shutdown current does the MAX3232ESE+ draw, and how does it benefit battery-powered serial port designs?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Analog Devices

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