SC16C654BIEC,551

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The SC16C654BIEC 551 is one of the many Universal Asynchronous Receiver Transmitter (UART) interface devices produced by NXP Semiconductors. It is a multi-protocol serial communication device that provides two 16-byte FIFO (First In, First Out) and one 16-byte transmit FIFO, allowing for efficient data transfer. The Character Byte Format of the SC16C654BIEC 551 is 8-bits per character plus one stop bit, which supports most of the standard ASCII character sets. The device also has a built-in power-on reset circuit, which makes the device safe to operate in a wide range of applications.

The SC16C654BIEC 551 has several noteworthy features such as 9-bit operation, with one receive and one transmit FIFO each 16-bytes deep, which enables it to function as a standard serial port capable of transmitting/receiving data at half-duplex linke rates. It is well suited for point-to-point or multi-drop asynchronous communication applications, as well as low-speed parallel to serial communication, most commonly used in data acquisition systems. The device has several modes of operation including a common 16450 mode, the ‘654 enhanced mode and the ‘521 multi-mode capability.

In terms of applications, the SC16C654BIEC 551 can be used in industrial control systems, data compressor/decompressor systems, networking and telecommunications, as well as data acquisition systems, among others. The most significant function of the SC16C654BIEC 551 is its capability to enable full-duplex communication in asynchronous serial communication applications.

The working principle of the SC16C654BIEC 551 involves a process known as UART communication. The UART stands for Universal Asynchronous Receiver Transmitter, and this process allows two systems to communicate with one another without any clock signal or any other external signal. The UART works by converting the incoming characters (sent by the transmitting device) into packets of pulses, and then it sends these pulses over the serial link. The receiving device then reads the pulses, converts them back into characters, and sends the data over to the destination.

The SC16C654BIEC 551 also includes advanced features such as a 16-byte DMA mode that allows for higher throughput communication, as well as a self-test mode that makes diagnostics easy and quick. Additionally, the device supports various operating modes such as: high-speed double XOn/XOff, software flow control, and even higher speed communications modes. All of this makes the SC16C 654BIEC 551 a powerful and reliable option for low power UART communication applications.

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