Universal Asynchronous Receiver-Transmitter (UART)

UART stands for universal asynchronous receiver-transmitter. It is one of the simplest forms of device to device for digital communication. The  communication protocol not  like SPI and I2C but a physical circuit in a microcontroller and  stand alone IC. Data format and transmissi

on speeds are configurable in asynchronous serial communication. UART is to transmit and receive serial data. Best thing about UART is it only uses two wires to transmit data between devices.

Application of UART

It is normally used in microcontrollers for exact requirements and this is also available in communication devices like wireless communication, GPS unit, bluetooth module and many more applications. Communications like RS422 and TIA are used in UART except for RS232. This IC is used in UART serial communications.

Advantages of UART

• Only uses two wires.
• No clock signal is necessary.
• A parity bit to allow for error checking.
• Change the data packet  as long as both sides are set up for it.
• Well documented and widely used method.

Disadvantages of UARTapplication of UART

• It is normally used in microcontrollers for exact requirements and this is also available in communication devices like wireless communication, GPS unit, bluetooth module and many more applications. Communications like RS422 and TIA are used in UART except for RS232. This IC is used in UART serial communications.

Advantages of  UART

• Only uses two wires.
• No clock signal is necessary.
• A parity bit to allow for error checking.
• Change the data packet  as long as both sides are set up for it.
• Well documented and widely used method.

Disadvantages of UART

• The frame of data is limited to a maximum of 9 bits.
• Doesn’t support multiple slave or multiple master systems.
• The bad rate of each UART must be within 10% of each other.

UART uses

• The PC serial port is a UART.
• Serialized data to be sent over a serial cable.
• De-serializes received data.
• Communication between distant computers.
• Serialized data to be sent to the modem.
• De-serializes received data from modem.
• Used to be commonly used for internet access.
• The  mainframe can have dozens of serial ports.
• The frame of data is limited to a maximum of 9 bits.
• Doesn’t support multiple slave or multiple master systems.
• The bad rate of each UART must be within 10% of each other.

UART uses

• The PC serial port is a UART.
• Serialized data to be sent over a serial cable.
• De-serializes received data.
• Communication between distant computers.
• Serialized data to be sent to the modem.
• De-serializes received data from modem.
• Used to be commonly used for internet access.
• The  mainframe can have dozens of serial ports.