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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversMAX202CWE+T
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MAX202CWE+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX202CWE+T
Manufacturer
Maxim Integrated
Allelco Part Number
32D-MAX202CWE+T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,415 pcs available, New & Original
Parts Description
IC TRANSCEIVER FULL 2/2 16SOIC
Package
16-SOIC
Data sheet
MAX202CWE+T.pdf

Part Numbering Guide

Part Numbering System.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 9415
  • Unit Price: $2.376
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.376 $2.38
10+ $2.061 $20.61
30+ $1.874 $56.22
100+ $1.684 $168.40
500+ $1.597 $798.50
1000+ $1.557 $1,557.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MAX202CWE+T Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX202CWE+T technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX202CWE+T

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage - Supply 4.5V ~ 5.5V
Type Transceiver
Supplier Device Package 16-SOIC
Series -
Receiver Hysteresis 500 mV
Protocol RS232
Package / Case 16-SOIC (0.295', 7.50mm Width)
Product Attribute Attribute Value
Package Tape & Reel (TR)
Operating Temperature 0°C ~ 70°C
Number of Drivers/Receivers 2/2
Mounting Type Surface Mount
Duplex Full
Data Rate 120Kbps
Base Product Number MAX202

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

MAX202CWE+T Image
MAX202CWE+T (1)

Manufacturer Part Number

MAX202CWE+T

Manufacturer

Maxim Integrated

Introduction

The MAX202CWE+T is a dual RS-232 transceiver integrated circuit that provides two full-duplex drivers and receivers capable of meeting all EIA/TIA-232E and ITU v.28 specifications.

Product Features and Performance

Operates from a single 5V power supply

Data rates up to 120 kbps

Receiver input hysteresis of 500 mV

±30V input/output voltage range

Internal charge pump generates ±10V supplies from a single 5V supply

Low power shutdown mode

Specified for operation from 0°C to +70°C

Product Advantages

Meets EIA/TIA-232E and ITU v.28 standards

Requires minimal external components

Integrated charge pump eliminates need for external ±12V power supply

Compact 16-pin SOIC package

Key Technical Parameters

Supply Voltage: 4.5V to 5.5V

Duplex: Full

Number of Drivers/Receivers: 2

Protocol: RS232

Receiver Hysteresis: 500 mV

Data Rate: 120 Kbps

Type: Transceiver

Quality and Safety Features

RoHS3 compliant

Operating temperature range of 0°C to 70°C

Compatibility

The MAX202CWE+T is compatible with EIA/TIA-232E and ITU v.28 standards.

Application Areas

Serial data communication

Industrial automation

Telecommunications equipment

Computer peripherals

Product Lifecycle

The MAX202CWE+T is an active product and is not nearing discontinuation. Replacement or upgraded products are available.

Key Reasons to Choose This Product

Meets industry-standard RS-232 specifications

Requires minimal external components for a simple and compact design

Integrated charge pump eliminates the need for an external ±12V power supply

Wide operating temperature range of 0°C to 70°C

Available in a space-saving 16-pin SOIC package

RoHS3 compliant for use in modern electronic applications

Frequently Asked Questions(FAQ)

What is the maximum data rate supported by the MAX202CWE+T transceiver for reliable RS232 communication in industrial environments?
The MAX202CWE+T supports a maximum data rate of 120 kbps, which provides sufficient bandwidth for most standard serial communication applications. This rate ensures reliable transmission over typical RS232 link lengths while maintaining signal integrity under moderate noise conditions. In industrial settings where electromagnetic interference may be present, this data rate balances throughput requirements with robustness.
How does the receiver hysteresis of 500 mV in the MAX202CWE+T help improve noise immunity compared to other RS232 transceivers?
The 500 mV receiver hysteresis creates a noise margin that prevents unintended triggering from small voltage fluctuations. This design choice enhances reliability in electrically noisy environments such as factory floors or vehicles where ground loops and induced voltages are common. Compared to transceivers with lower hysteresis values, this feature reduces false reception without significantly increasing susceptibility to legitimate signal transitions.
Can the MAX202CWE+T operate reliably across the full specified supply voltage range of 4.5V to 5.5V when interfacing with legacy systems using ±12V RS232 levels?
Yes, the MAX202CWE+T uses an internal charge pump to generate the necessary ±10V driver output swings from its 4.5V to 5.5V supply rails. This enables it to interface with legacy RS232 equipment that operates at traditional ±12V levels. The internal circuitry ensures stable output thresholds across the entire supply range, maintaining compliance with RS232 voltage standards despite lower input power.
What are the implications of the MAX202CWE+T’s operating temperature range (0°C to 70°C) for outdoor or harsh environment deployments?
The MAX202CWE+T is rated only for commercial temperature operation, limiting its use to controlled indoor environments. For outdoor applications exposed to direct sunlight or ambient temperatures below freezing, additional thermal management or environmental enclosures would be required. This narrow range contrasts with industrial-grade alternatives that support extended temperature ranges down to -40°C, making this device unsuitable for unregulated field installations without safeguards.
How does the MAX202CWE+T compare to the MAX222 in terms of driver/receiver count and package compatibility for space-constrained PCB layouts?
While both devices are full-duplex RS232 transceivers from Maxim Integrated, the MAX202CWE+T provides two drivers and two receivers in a 16-pin SOIC package, whereas the MAX222 offers four drivers and four receivers in a larger 16-pin SSOP configuration. The SOIC footprint of the MAX202CWE+T is marginally more compact than SSOP but still comparable in size. Designers choosing between them must balance channel count against board real estate—selecting MAX202CWE+T when only two transmit-receive pairs are needed optimizes component placement density.
Is it acceptable to use the MAX202CWE+T in battery-powered embedded systems where minimizing quiescent current is critical?
No, the MAX202CWE+T is not optimized for low-power applications due to its higher standby current compared to modern CMOS RS232 alternatives. Its charge pump architecture consumes more power even when idle, making it ill-suited for long-duration battery operation. Systems requiring extended runtime should consider newer parts with sleep modes and sub-milliamp shutdown currents instead.
What precautions should be taken when designing with the MAX202CWE+T to avoid latch-up during hot-swapping or transient voltage events?
Although the device has no explicit hot-swap protection, engineers should implement series current-limiting resistors (typically 100–470 Ω) on each RS232 line to limit inrush current during connection events. Additionally, placing bypass capacitors close to the VCC pin helps suppress supply transients. Given its MSL rating of 1, storage handling is straightforward, but layout practices like avoiding long traces near high-impedance nodes reduce risk of parasitic triggering.
How does the full-duplex capability of the MAX202CWE+T impact system latency compared to half-duplex RS232 implementations?
Full-duplex operation allows simultaneous bidirectional communication, eliminating the need for turnaround time between transmit and receive phases. This results in lower effective latency for interactive protocols such as terminal emulation or real-time sensor feedback. In contrast, half-duplex designs require coordination overhead and introduce delays due to directional switching, making the MAX202CWE+T preferable for time-sensitive applications where response consistency matters.
What role does the Moisture Sensitivity Level (MSL) 1 classification play in assembly and handling of the MAX202CWE+T?
With an MSL rating of 1, the MAX202CWE+T can be stored indefinitely under normal conditions without baking prior to soldering. This simplifies inventory management and reduces processing steps in high-volume manufacturing, especially beneficial for just-in-time assembly lines. It indicates robust moisture resistance in the plastic molding, minimizing popcorning risks during reflow even after prolonged exposure to ambient humidity.
Why might a designer choose the MAX202CWE+T over a newer integrated UART-to-RS232 solution despite its limited data rate ceiling?
The MAX202CWE+T offers proven reliability in mature RS232 ecosystems where legacy peripherals dictate voltage levels and connector types. Its simplicity—requiring only four external capacitors for the charge pump—reduces BOM cost and board complexity. For applications not exceeding 120 kbps and using standard DB9 connectors, this trade-off favors interoperability and ease of integration over cutting-edge performance, particularly in retrofit or maintenance scenarios.
How does the MAX202CWE+T handle ESD protection on its serial lines, and what external components are recommended for robust field deployment?
The device includes basic ESD diodes but does not provide high-level transient protection. To meet IEC 61000-4-2 Level 2 requirements, external transient voltage suppressors (TVS) like the PESD2CAN or similar bidirectional arrays should be placed close to connectors. These clamp fast surges before they reach the IC, preserving internal circuitry. Without such additions, the MAX202CWE+T remains vulnerable to damage from static discharge or inductive kickback in unshielded cables.
What is the significance of the "Cut Tape" packaging option for the MAX202CWE+T in automated production environments?
Cut tape format facilitates pick-and-place machine feeding and improves handling efficiency in high-speed assembly lines by providing individual reel segments. This packaging choice aligns with standard SMT processes and reduces manual intervention, enhancing throughput and reducing placement errors. It is ideal for mass production where consistent feeding and orientation are critical for reliable robotic assembly.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX202CWE+T

Product Attribute MAX202CSE+TG074 MAX202CSE+TGA8 MAX202CWE+ MAX202CUE+T
Part Number MAX202CSE+TG074 MAX202CSE+TGA8 MAX202CWE+ MAX202CUE+T
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Data Rate - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -
Number of Drivers/Receivers - - - -
Duplex - - - -
Receiver Hysteresis - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Protocol - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Type - - - -

MAX202CWE+T Datasheet PDF

Download MAX202CWE+T pdf datasheets and Analog Devices Inc./Maxim Integrated documentation for MAX202CWE+T - Analog Devices Inc./Maxim Integrated.

Datasheets
MAX200-209,211,213.pdf
Application Notes
Determining Clock Accuracy Requirements for UART C.pdf RS-232 Features Explained.pdf
Environmental Information
Maxim Integrated REACH.pdf Maxim Integrated RoHS Cert.pdf Red Phosphorous Certificate.pdf
Part Numbering Guide
Part Numbering System.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Electrostatic Discharge Protection and Handling

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MAX202CWE+T Image

MAX202CWE+T

Analog Devices Inc./Maxim Integrated
32D-MAX202CWE+T

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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