XR16C854IQ-F

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The XR16C854IQ-F is an asynchronous serial communication interface from Exar Corporation, which is a preferred choice for system designers when it comes to UART communication. It is an integrated single-chip device with up to two UARTs, 8-bit parallel host port, and 6-byte FIFO with two control registers. It is the industry\'s first to provide two independent data channels with 128-byte FIFOs in a small 32-pin TQFP package.

The main application of the XR16C854IQ-F is to provide high-speed RS-232C serial communication between computers and peripherals. It operates in either a full-duplex (transmission and reception of data simultaneously) or a half-duplex (transmission and reception of data one after the other) mode. It also provides an additional connection port for the hardware flow control.

The working principle of the XR16C854IQ-F is based on the Universal Asynchronous Receiver Transmitter (UART) principle. In this principle, the device takes the serial data and stores it in a FIFO buffer for further processing. The device also provides a mechanism for sending and receiving signals asynchronously. This means that the device can send data from one device to another without the need for a clock signal in either direction.

The XR16C854IQ-F provides two operating modes for the UARTs: asynchronous and synchronous. In the asynchronous mode, the UART works independently from other devices, while in the synchronous mode, it works in conjunction with other devices. The device also provides an additional pin for the hardware flow control that is used to control the flow of data between the two UARTs.

The XR16C854IQ-F also provides an 8-bit parallel host port to simplify the connection between the UARTs, as well as a 6-byte FIFO with two control registers. The device is capable of automatically detecting and responding to data changes, allowing it to easily handle large amounts of data without the need for a large number of host commands.

The XR16C854IQ-F is the most suitable choice for a wide variety of applications including embedded systems, point-of-sale systems, automation systems, and more. It provides a reliable and cost-effective solution for UART communication, with its small form factor, power efficient design, and low power consumption. Its advanced features make it the ideal choice for a variety of applications.

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