MAX3238ECDBR

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Interface solutions exist in a wide range of applications, from consumer electronics to automotive technology, for the purpose of facilitating communications between devices. MAX3238ECDBR is an easy-to-use semiconductor device designed for RS-232 line-driver/line-receiver applications, falling in the category of interface solutions. It comprises one RS-232 driver and three associated RS-232 receivers.

Applications

MAX3238ECDBR is an ideal device for use in a variety of communication solutions, such as those found in retail, automotive, and industrial applications. In retail, the device allows peripheral devices, such as keyboards, scanners and printers, to communicate with a computer. In automotive applications, the device may be used to control and provide status signals for safety systems. Finally, MAX3238ECDBR is suitable in industrial applications for the purpose of connecting various types of sensors, meters and actuators.

Working Principle

The MAX3238ECDBR is a bi-directional low-power transceiver which operates in both the receive and transmit modes. The device is compatible with EIA/TIA-232F, V.24 and EIA-530 standards. The device features two independent power rails, which makes it more robust against wide supply voltages and output short circuits. In the receive mode, the device automatically adjusts the input thresholds to match the positive and negative supply voltages. In the transmit mode, the device provides differential outputs which drive the load efficiently.

The device includes three receivers, one differential driver and two power supply pins. The driver accepts a single-ended input signal and provides true differential outputs which reduce board-to-board crosstalk. The receiver thresholds are referenced to the power supplies, and are programmable to provide optimal performance for various types of loads. The device is designed to meet the requirements of the EIA/TIA-232F standard, up to 120 kbps data rate.

Conclusion

MAX3238ECDBR is an RS-232 line driver-receiver integrated circuit designed for interface solutions in various retail, automotive, and industrial applications. The device features three receivers and one differential driver, and is compatible with the EIA/TIA-232F, V.24 and EIA-530 standards. It also has two independent power rails to protect against wide supply voltages and output short circuits. The receiver thresholds are referenced to the power supplies, and are programmable to achieve optimal performance. MAX3238ECDBR is suitable for high-speed data rate applications of up to 120 kbps.

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