MAX225EWI

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MAX225EWI

IC TRANSCEIVER FULL 5/5 28SOIC

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仕様

Part Status Obsolete
Type Transceiver
Protocol RS232
Number of Drivers/Receivers 5/5
Duplex Full
Receiver Hysteresis 500 mV
Data Rate 250kbps
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 28-SOIC (0.295", 7.50mm Width)
Supplier Device Package 28-SOIC
Base Product Number MAX225

概要

Description

The MAX225EWI is an integrated circuit (IC) developed for industrial applications, primarily used in RS-485 communication systems. It is a transceiver designed to facilitate robust and reliable data transmission over long distances and in electrically noisy environments. The device supports both half-duplex and full-duplex communication, making it versatile for various industrial network configurations. Key features include high-speed data rates, typically up to 250 kbps, and extended temperature range operation from -40°C to +85°C, ensuring performance in harsh conditions.
The MAX225EWI incorporates fail-safe features such as short-circuit protection, thermal shutdown, and ESD protection, enhancing durability and safety. Additionally, it operates on a single +5V supply, making it easy to integrate into existing systems. The IC is also equipped with low-power modes, reducing power consumption in idle states, which is advantageous for battery-powered applications. Overall, the MAX225EWI is well-suited for use in industrial automation, process control, and building management systems where reliable communication is crucial.

Features

The MAX225EWI is a communication interface IC, specifically designed for RS-485/RS-422 networks. Key features include:
1. Operating Voltage: It functions with a single 5V power supply, suitable for various industrial applications.
2. Temperature Range: The device supports a wide industrial temperature range from -40°C to +85°C, ensuring reliability in harsh conditions.
3. Data Rate: It offers high-speed communication with data rates up to 2.5 Mbps, allowing for efficient data transfer.
4. Short-Circuit Protection: The IC includes protection features against short-circuit conditions, enhancing system robustness.
5. ESD Protection: It provides electrostatic discharge (ESD) protection up to ±15 kV (Human Body Model), safeguarding against static damage during handling.
6. Low-Power Shutdown Mode: The MAX225EWI supports a low-power shutdown mode, reducing power consumption when the device is not in active use.
7. Driver/Receiver Enable: It features separate driver and receiver enable pins, allowing for precise control over the communication process.
8. Fail-Safe Receiver: The integrated receiver has a fail-safe feature to prevent metastable states in the event of an open or shorted input.
These features make the MAX225EWI ideal for reliable and efficient communications in industrial and commercial environments.

Package

The MAX225EWI is a line driver/receiver IC and typically comes in a 16-pin wide small outline integrated circuit (SOIC) package. This package type is designed for surface mounting on printed circuit boards (PCBs) and provides space-efficient integration for electronic applications.

Pinout

The MAX225EWI is an RS-232 transceiver integrated circuit, typically used for serial communication. It features:
- Pin Count: 16 pins.
- Functionality: The MAX225EWI is designed to facilitate the conversion between RS-232 and TTL/CMOS logic levels. It serves as both a transmitter and receiver for serial data.
Key functions include:
- Transmitter: Converts TTL/CMOS level input into RS-232 level output.
- Receiver: Converts RS-232 level input into TTL/CMOS level output.
The device usually incorporates charge pump voltage converters that eliminate the need for dual power supplies, allowing it to operate from a single 5V supply. It provides multiple driver/receiver pairs to support full-duplex communication. Typically, it features three drivers and two receivers. The MAX225EWI is designed for robust operation, often including ESD protection and the ability to operate reliably over extended temperature ranges.

Manufacturer

The MAX225EWI is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was a company that specialized in designing and manufacturing analog and mixed-signal integrated circuits. Analog Devices, Inc., its parent company, is a global leader in the design, manufacturing, and marketing of a broad portfolio of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in virtually all types of electronic equipment. These products are used in a wide range of industries, including automotive, communication, consumer electronics, industrial automation, healthcare, and more.

Application

The MAX225EWI is a robust RS-485/RS-422 transceiver commonly used in industrial applications requiring reliable data transmission over long distances. Its applications include factory automation, process control, building automation systems, and energy management systems. This device is ideal for environments with electrical noise and where isolation between components is necessary to prevent ground loop issues. Its wide operating temperature range makes it suitable for harsh environments.

Equivalent

The MAX225EWI is a line driver/receiver chip used for RS-232 communication. Equivalent products include the Maxim Integrated MAX232, Texas Instruments SN75C185, and Analog Devices ADM202. These chips serve a similar purpose by facilitating serial communication and level shifting between TTL/CMOS and RS-232 voltage levels. Always verify pin compatibility and electrical specifications before substituting.

出荷

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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