MAX232ECDWRE4

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The MAX232ECDWRE4 is a dual ESD-protected transceiver used to convert signals between an EIA-232 (TIA/EIA-232-F) and TTL logic levels. It offers +-15kV ESD protection on the RS232 pins and four switchable power supply options: +5V, +3.3V, +-5V and +-9V. The MAX232ECDWRE4 is a member of the world-renowned MAX232 family of transceivers, with millions of devices sold worldwide. The MAX232ECDWRE4 transceiver is used in many companies and applications, from home, auto and industrial settings, to communication with industrial control systems, model trains and more.

The main application fields of MAX232ECDWRE4 transceivers include:

• telephone system
• computer networks
• wireless communication
• data acquisition systems
• instrumentation
• control systems
• automatic systems

The MAX232ECDWRE4 transceiver has two sets of drivers and receivers that enable communication between two EIA-232-F compliant devices. This device features dual charge pump capacitors, which work together to convert the +5V or 3.3V logic levels of TTL devices to the slightly negative voltages of RS232. The MAX232ECDWRE4 also includes a low-power shutdown mode and thermal shutdown protection, which helps prevent the device from overheating and damaging other connected components.

The MAX232ECDWRE4 transceiver’s main working principle is to convert low-voltage TTL/CMOS logic levels to EIA-232-F (RS232) levels and vice versa. Using a dual charge pump voltage converter circuit, it converts the TTL/CMOS logic levels to the slightly negative voltage levels of RS232. It includes two sets of drivers and receivers, enabling communication between two EIA-232-F compliant devices. This device also features two switchable power supply options, allowing the user to select between +5V, +3.3V, +-5V and +-9V. Additionally, the MAX232ECDWRE4 features excellent protection features, such as +-15kV ESD protection on the RS232 pins, low-power shutdown mode and thermal shutdown protection. These features help ensure that the MAX232ECDWRE4 transceiver is used in many applications safely and reliably.

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