SC16C554BIB80,551

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The SC16C554BIB80 and SC16C551 are two types of Universal Asynchronous Receiver/Transmitters (UARTs) that provide a general-purpose solution for asynchronous communication between microprocessors, microcontrollers, and other peripheral devices. In this article, we will discuss the application field and the working principle of these UARTs.

Application Field

The SC16C554BIB80 and SC16C551 UARTs are used in a wide range of applications which require asynchronous communication between multiple devices, such as in computer networks, process control systems, point-of-sale systems, automotive electronics, and so on. They are also used in industrial control systems, embedded systems, and remote telemetry systems.

Moreover, the SC16C554BIB80 UART is specifically designed to provide improved signal integrity in noisy environments, due to its advanced signal conditioning and signal enhancement features, such as noise detection and cancellation and capacitance matching. This makes it especially suitable for high-speed applications, such as in automotive telematics systems.

Working Principle

The SC16C554BIB80 and SC16C551 UARTs are designed to operate as full-duplex asynchronous devices. This means that they can both receive and transmit data over two separate channels, without relying on a clock source. This allows them to communicate with devices that use different clock speeds.

The UARTs use a system of serial communication which features one-way or half-duplex transmission. This means that only one device can transmit data at any given time, while the other device can only receive it. This process is known as asynchronous serial communication, in which transmission and reception is synchronized with the start and stop bits that are sent and received at the same time.

The SC16C554BIB80 and SC16C551 UARTs use the 8-bit data format and the NRZI (non-return-to-zero-invert) encoding scheme for data transmission. In this scheme, each bit of the data stream is represented by a pulse, with a zero bit represented by a low pulse, and a one bit represented by a high pulse. This encoding scheme is also known as Manchester encoding, and it is used to improve the signal integrity of the data transmission.

In addition, the UARTs use an internal multiplexer to switch between the transmit and receive paths. This means that they can be used to connect multiple devices without requiring the use of a dedicated communication port or cable.

The SC16C554BIB80 and SC16C551 UARTs are also compatible with popular operating systems, such as Windows and Linux. This makes them an attractive choice for applications that require universal compatibility.

Conclusion

In conclusion, the SC16C554BIB80 and SC16C551 UARTs are a general-purpose solution for asynchronous communication between microprocessors, microcontrollers, and other peripheral devices. They are designed to provide improved signal integrity in noisy environments and are compatible with popular operating systems, making them suitable for a wide range of applications.

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