MAX3223EEUP+T

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The MAX3223EEUP+T is an ultra-low-power, 3.3 V EIA/TIA-232 Serial Interface Transceiver. This transceiver operates from a single 3.3 or 5 V supply and has an integrated ESD protection. It is designed to interface between an asynchronous serial port and an RS- 232 compatible data set (DTE). The receivers have a 120-kV HBM ESD immunity on all pins.

Application Field

The MAX3223EEUP+T is a cost-effective serial interface solution. It provides a low-power, easy-to-use solution for designers who need to transfer data reliably between asynchronous serial ports. This device is ideal for use in low-power, handheld data communications applications such as PDAs, PDAs, cellular phones, and pagers.

The MAX3223EEUP+T can also be used in communication protocols such as RS-232, Universal Asynchronous Receiver-Sender (UART), Inter-Integrated Circuit Bus (I2C), and the System Management Bus (SMBus). The receiver is designed to support baud rates of up to 500 kbps. It is also capable of supporting low-noise, low-power data transfer due to its robust ESD protection and input hysteresis.

Working Principle

The MAX3223EEUP+T uses a differential serial transmission protocol that consists of a transmit line (Tx), a receive line (Rx), and a handshaking line (HD). The device has a differential current source driver stage that allows it to meet strict termination requirements. The differential current source of the unit is used to couple the receiver input to the transmitter output.

The transmitter section of the device has two logic enable inputs, E1 and E2. The enable input E1 is used to enable the transmit data out to the outside world and E2 is used to enable the receive data coming from the outside world. The receiver section has two enable inputs, RE and DE. The enable input RE is used to enable receive data coming from the outside world and DE is used to enable transmit data out to the outside world.

The power management of the unit is handled with an enable input EN. The enable input allows the MAX3223EEUP+T to be powered up or down as required by the user. The unit is designed to operate in either surge-suppression or low-voltage logic mode. This makes it suitable for many different design requirements.

The MAX3223EEUP+T is a high-performance, low-power interface solution that is available in a wide range of packages. It is designed to meet the needs of designers who require a reliable and convenient solution for transferring data reliably between asynchronous serial ports.

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