How does MAX3232EEUE differ from MAX3232ECUE?

Both are 16-pin TSSOP MAX3232E parts with the same plus/minus 15kV ESD circuit, pinout and 0.1uF design - order-option variants that are pin-compatible.

What capacitors does the MAX3232EEUE need?

Four 0.1uF charge-pump capacitors plus a 0.1uF VCC bypass on a single +3.0V to +5.5V supply.

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Name: MAX3232EEUE+T
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX3232EEUE+T
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Analog Devices Inc./Maxim Integrated MAX3232EEUE+T

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Part No.:: MAX3232EEUE+T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Drivers, Receivers, Transceivers

Package:: 16-TSSOP (0.173", 4.40mm Width)

Datasheet:: MAX3232EEUE+T.pdf

Description:: IC TRANSCEIVER FULL 2/2 16TSSOP

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Product Details

MAX3232EEUE+T - Maxim ±15kV ESD-Protected +3V to +5.5V RS-232 Transceiver, 2-Tx/2-Rx (TSSOP-16)

The MAX3232EEUE+T from Maxim Integrated (Analog Devices) is a general-purpose TSSOP grade of the ±15kV ESD-protected MAX3232E RS-232 transceiver - two drivers, two receivers, +3V to +5.5V, rated over the full -40°C to +85°C industrial range. A dual charge pump and 0.1µF capacitors make true RS-232 from 3.3V, with ±15kV ESD on the I/O.

Product Introduction

The MAX3232EEUE+T is a general-purpose 16-pin TSSOP grade of Maxim's ±15kV ESD-protected MAX3232E RS-232 transceiver (MAX3222E-MAX3241E family). With two drivers and two receivers from a +3V to +5.5V supply and full -40°C to +85°C operation, it is the everyday workhorse for low-voltage serial ports that must tolerate industrial temperatures.

A dual charge pump generates RS-232 line levels from 3.3V using only 0.1µF capacitors, and all RS-232 pins are protected to ±15kV Human Body Model ESD. The receivers carry a 5kΩ input pulldown and translate RS-232 to TTL/CMOS logic.

Pin-compatible across the MAX3232E packages, the MAX3232EEUE drops into any MAX3232E TSSOP design and second-sources cleanly against the ECUE/ECUP grades - useful where broad availability and a standard TSSOP outline matter more than the smallest footprint.

Expert Technical Insight

Why the MAX3232EEUE as a general-purpose choice?

Industrial -40 to +85°C: the E grade covers the full industrial temperature range, so the same part serves consumer and industrial serial ports.
±15kV ESD, 3.3V RS-232: true RS-232 from a 3.3V rail with ±15kV HBM on the connector - robust without external protection.
Drop-in TSSOP: standard 16-pin TSSOP and the common MAX3232E pinout make it interchangeable with the other TSSOP MAX3232E order options.

Key Benefits

Industrial -40 to +85°C

Full industrial temperature range in standard TSSOP-16.

±15kV ESD-Protected

±15kV HBM ESD on all RS-232 I/O pins.

+3V to +5.5V, 0.1µF

True RS-232 from 3.3V via dual charge pump; only 0.1µF capacitors.

2-Tx/2-Rx, Shared Pinout

Two Tx + two Rx; common MAX3232E pinout across SSOP/TSSOP/TQFN.

Specifications

Parameter	Value	Condition / Notes
Device Type	RS-232 transceiver (2 Tx / 2 Rx), ESD-protected	MAX3222E-MAX3241E family
Manufacturer	Maxim Integrated (Analog Devices)
ESD Protection	±15 kV HBM	RS-232 I/O pins
Supply Voltage	+3.0 V ~ +5.5 V	Single supply
Charge Pump	Integrated dual	Generates RS-232 levels from 3.3V
External Capacitors	0.1 µF	4 charge-pump + 1 VCC bypass
Drivers / Receivers	2 / 2	5kΩ receiver input pulldown
Operating Temperature	-40°C ~ +85°C	Extended (E)
Package	16-Pin TSSOP (EUE)	"+" lead-free; "T" tape & reel

Note: Refer to the official Maxim MAX3222E-MAX3241E datasheet for full electrical parameters. Subject to change without notice; verify all parameters before final design.

Package Information

The MAX3232EEUE+T is supplied in a standard 16-pin TSSOP package, indicated by the EUE suffix. It shares the identical MAX3232E pinout with the SSOP and TQFN versions for easy second-sourcing.

The "+" suffix indicates lead-free, RoHS-compliant finish and the "T" suffix tape-and-reel packing. Standard 16-lead TSSOP land patterns and reflow profiles apply; place the four 0.1µF charge-pump capacitors and VCC bypass close to the device. The diagram below shows the typical operating circuit.

Pin Configuration (TSSOP-16)

The MAX3232E uses a 16-pin RS-232 pinout (top view):

Pin 1 - C1+ / Pin 3 - C1- / Pin 4 - C2+ / Pin 5 - C2-: Charge-pump capacitor connections.
Pin 2 - V+ / Pin 6 - V-: Charge-pump outputs (+5.5V / -5.5V).
Pin 11 - T1IN / Pin 10 - T2IN: Driver TTL/CMOS inputs.
Pin 14 - T1OUT / Pin 7 - T2OUT: Driver RS-232 outputs (±15kV ESD).
Pin 13 - R1IN / Pin 8 - R2IN: Receiver RS-232 inputs (±15kV ESD, 5kΩ pulldown).
Pin 12 - R1OUT / Pin 9 - R2OUT: Receiver TTL/CMOS outputs.
Pin 15 - GND / Pin 16 - VCC: Ground and +3V-+5.5V supply.

Connect the four 0.1µF capacitors, route T_IN/R_OUT to the UART and the ESD-protected T_OUT/R_IN to the RS-232 connector. Confirm the exact pin assignment against the datasheet image below before layout.

Alternative Parts

The following parts are listed for reference. Verify package, channel count and ESD before substituting.

Part Number	Brand	Type	Package	Key Feature
MAX3232ECUE+T	Maxim	±15kV ESD RS-232 (2/2)	TSSOP-16	Same MAX3232E, TSSOP
MAX3232ECAE+T	Maxim	±15kV ESD RS-232 (2/2)	SSOP-16	Same MAX3232E, SSOP
MAX3221CUE+T	Maxim	RS-232, 1-Tx/1-Rx, AutoShutdown	TSSOP-16	Single-channel, 1µA
MAX3243EAI+	Maxim	RS-232, 3-Tx/5-Rx, AutoShutdown	SSOP-28	Full serial-port, ±15kV ESD

Manufacturer Information

Maxim Integrated, now part of Analog Devices (NASDAQ: ADI), offers the ±15kV ESD MAX3232E across SSOP, TSSOP and TQFN bodies and multiple order options. The MAX3232EEUE is the general-purpose industrial-temperature TSSOP grade.

Maxim/ADI provides complete datasheets, application notes and long-term supply, with authorized distribution and technical support across China for both prototype and volume programs.

Application Areas

General 3V Serial

General-purpose 3V RS-232 ports

Typical case: A general 3.3V board uses the MAX3232EEUE as its standard RS-232 transceiver, sourced interchangeably with other TSSOP grades.

Industrial Temp

-40°C to +85°C industrial equipment

Typical case: Industrial gear running to +85°C uses the E-grade MAX3232EEUE for its 3V RS-232 link with ±15kV ESD.

Peripherals

Computer and instrument peripherals

Typical case: A 3V peripheral uses the standard TSSOP MAX3232EEUE for a dual-channel RS-232 console.

ESD-Protected Serial

Exposed 3V serial connectors

Typical case: A user-accessible 3V serial jack relies on the MAX3232E's ±15kV rating to survive plug/unplug ESD.

Frequently Asked Questions

What is MAX3232EEUE+T used for?

It is a general-purpose, industrial-temperature TSSOP grade of the ±15kV ESD-protected +3V to +5.5V MAX3232E RS-232 transceiver (2-Tx/2-Rx), for everyday 3V serial ports from -40°C to +85°C.

How does it differ from the MAX3232ECUE?

Both are 16-pin TSSOP MAX3232E parts with the same ±15kV ESD circuit, pinout and 0.1µF design; they are order-option variants and are pin-compatible.

What capacitors and supply does it need?

Four 0.1µF charge-pump capacitors plus a 0.1µF VCC bypass on a single +3.0V to +5.5V supply.

What package is MAX3232EEUE+T?

A standard 16-pin TSSOP (EUE); the same MAX3232E pinout is also in SSOP and TQFN.

Disclaimer

Information Accuracy: Technical specifications on this page are based on the Maxim official datasheet. We strive for accuracy and completeness, but specifications are subject to change without notice. Verify all parameters before final design.

Product Authenticity Guarantee: We guarantee all products sold are genuine factory originals with complete material traceability.

Technical Support: Free technical consultation services are available both before and after purchase.

Application Note: This product page is for reference only. Suitability for specific applications should be verified by design engineers based on actual system requirements.

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