MAX3313EEUB+T

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The MAX3313EEUB+T is a +3.3 V powered, multi-protocol transceiver used for RS-232, full-duplex RS-485, and half-duplex RS-485/RS-422 communication. This device is pin compatible with the MAX3311E and MAX3312E transceivers, making it an ideal upgrade solution. The MAX3313EEUB+T is well-suited for a variety of applications requiring voltage level translation and data transmission.

Application Field

The MAX3313EEUB+T uses a current-mode logic architecture and it is designed to interface data terminal equipment (DTE) or data communications equipment (DCE) with a serial port. It allows data lines to be extended to up to 4000 feet for transmission at speeds of up to 250 kbps. It is also designed for applications with DTE/DCE interfaces such as modem, printer, and other serial communications systems.

The MAX3313EEUB+T provides a maximum data rate of 250 kbps for RS-232 and a maximum data rate of 50 kbps for RS-485 and RS-422 communications. It is an excellent choice for applications that require half-duplex or full-duplex communications, such as industrial automation, security and surveillance systems, building automation systems, and metering systems. The device also provides a high level of signal integrity and ESD protection, making it suitable for applications that require robust data transfer and signal protection.

Working Principle

The MAX3313EEUB+T is based on a current mode logic (CML) architecture which uses “currents” in a differential pair to communicate data, instead of “voltages”. This architecture allows a +3.3V powered transceiver to operate over the full RS-232 voltage range. The device is also capable of achieving data rates of up to 250kbps, making it suitable for high-speed applications.

The MAX3313EEUB+T features integrated ESD protection and high output drive strength. It automatically sets the appropriate signal levels for each of the protocols: RS-232, RS-485 and RS-422. The device has a selectable mode pin which allows users to select between a full-duplex or half-duplex configuration. In addition, the device also includes a data rate selection feature which allows the user to set a communication speed of up to 250 kbps.

The MAX3313EEUB+T also features a thermal shutdown protection circuit which can be used to protect the device from overheating due to changes in temperature or voltage. The device features an integrated charge pump which provides the needed voltage level shifting for RS-232 and full-duplex RS-485 communication. The device is also pin compatible with the MAX3311E and MAX3312E transceivers, making it an ideal upgrade solution.

In summary, the MAX3313EEUB+T is an +3.3V powered multi-protocol transceiver designed for RS-232, full-duplex RS-485, and half-duplex RS-485/RS-422 communication. It uses a current-mode logic architecture and is suitable for applications requiring voltage level translation and data transmission. The MAX3313EEUB+T offers a maximum data rate of 250kbps for RS-232 and a maximum data rate of 50kbps for RS-485 and RS-422 communications, providing a high level of signal integrity and ESD protection.

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