SC16C554BIBS,557

Series:	--
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Features:	--
Number of Channels:	4, QUART
FIFO's:	16 Byte
Protocol:	--
Data Rate (Max):	5Mbps
Voltage - Supply:	2.5V, 3.3V, 5V
With Auto Flow Control:	Yes
With IrDA Encoder/Decoder:	--
With False Start Bit Detection:	Yes
With Modem Control:	Yes
Mounting Type:	Surface Mount
Package / Case:	48-VFQFN Exposed Pad
Supplier Device Package:	48-HVQFN (6x6)
Base Part Number:	SC16C554

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The SC16C554BIBS, 557 are a family of highly integrated universal asynchronous receiver transmitters (UARTs). They provide full-duplex serial communications at rates of up to 1Mb/s and are widely used for communication between processor systems, information appliances, printers, modems and other serial devices. This article will explain their application field, working principle and notable features.ApplicationsThe SC16C554BIBS, 557 are widely used in embedded systems and microcontrollers for communications with other systems. They support wide range of protocols and are used extensively in serial data environments, such as RS485 and USB. They can also be used to interface with a variety of external components, such as memory and displays. They have been designed to cover various applications, ranging from simple serial data communication to more complex bus environments.Working PrincipleThe SC16C554BIBS, 557 UARTs are based on the 8-bit 8251A-compatible UART Core. This core consists of a serial interface and an internal controller. The internal controller provides the necessary buffering and control signals to transfer the serial data. The SC16C54BIBS, 557 implements the 8251A compatible core and supports a wide range of baud rates. The SC16C54BIBS, 557 also incorporates a programmable logic array (PLA) instead of the 8251A’s serial interface buffer. This enables it to support a variety of data formats, such as 8-bit, 9-bit, and even 10-bit. The internal controller can be configured to operate in one of two modes: polling or interrupt. When operating in polling mode, the UART sends a status byte to the microcontroller after each character has been received. The microcontroller can then read the status and determine whether or not more characters have been received. When operating in interrupt mode, an interrupt is sent to the microcontroller whenever a character has been received and the associated interrupt service routine can then process the character.Notable FeaturesThe SC16C54BIBS, 557 UARTs support a wide range of baud rates, from 300 baud to 1Mb/s. They also support full-duplex communications, which enables them to transmit and receive data simultaneously. The UARTs also feature a programmable FIFO buffer that can be used to store up to 16 characters. This allows the UART to handle bursts of data without the need for intervention by the microcontroller. The UARTs also support parity, framing and overrun error checking, as well as data inversion and flow control protocols like Xon/Xoff and RTS/CTS.In addition to their features, the SC16C54BIBS, 557 UARTs also offer a wide range of packages, ranging from SSOP, TSSOP and 24-pin VQFP packages. The UARTs are available with both a bus-powered and a self-powered mode. The bus-powered mode requires the UART to be connected to the power supply; the self-powered mode requires the UART to be externally powered.ConclusionThe SC16C554BIBS, 557 are a family of highly-integrated Universal Asynchronous Receiver Transmitters (UARTs). They are widely used in embedded systems and microcontrollers for communication with other systems. The SC16C55BIBS, 557 UARTs provide full-duplex serial communications at rates of up to 1Mb/s and support a wide range of protocols. They also feature a programmable FIFO buffer, parity, framing and overrun error checking, as well as data inversion and flow control protocols. The UARTs are available in a variety of packages, ranging from SSOP, TSSOP and 24-pin VQFP packages.

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