XR16C854DIV-F

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The XR16C854DIV-F is from Exar Corporation and is a Universal Asynchronous Receiver Transmitter (UART). By relying on a tailored serial communications controller interface, it seamlessly handles multiple serial data types — which makes it ideally suited for point-to-point or multipoint data communications. This article will discuss the application field of the XR16C854DIV-F and its working principle.

Application Field

The XR16C854DIV-F is used for asynchronous serial communication between two devices, such as computers, printers and modems. It provides an interface between these devices and the parallel digital circuitry. It has nine independent configurable transceivers, each with a dedicated UART on board, to support data transfer between them. The transceivers are also capable of a wide range of data rates, from 9.6K to 12Mb/s.

The XR16C854DIV-F is also available in both 4- and 8-bit versions, making it perfect for applications involving both high bandwidth and low bandwidth devices. Additionally, the device is capable of operating up to +5.5V, enabling it to work with a wide variety of system voltages. Finally, the XR16C854DIV-F offers a number of customizable features, such as adjustable data-widths and variable baud rates.

Working Principle

At a basic level, the working principle of the XR16C854DIV-F is relatively straightforward. When a data transfer is initiated, the device will first transmit a pre-defined number of bits, followed by a start-bit, the data byte and a stop bit. The data byte is sent with the least-significant bit first, followed by the most-significant bit. Once this is complete, the device will then wait for a response from the other device, or else repeat the process.

When receiving data, the XR16C854DIV-F will first wait for a start-bit, followed by a specific number of data bits, with the least-significant bit being sent first. The data is then stored in a buffer, where it is available for further processing or transmission. Finally, the device will automatically generate a stop bit, to signal the end of the data transmission.

Overall, the XR16C854DIV-F is a simple but highly effective UART device. It is capable of transferring data between two devices with minimal effort, allowing for accurate and reliable communication between them. Furthermore, its wide array of features allows it to meet the needs of a range of applications, making it perfect for both small and large scale projects.

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