Universal Asynchronous Receivers & Transmitters

Universal Asynchronous Receiver-Transmitter, more commonly referred to as UART, is a type of serial communication interface. UART’s primary function is to transmit and receive data via a data bus. It allows two devices, such as computers, to carry out data transmission over a wired connection. UARTs convert incoming and outgoing data bytes into a serial bit stream.


These particular UARTs are stand-alone integrated circuits (ICs). However, you can also find UARTs within microcontrollers (MCUs).


UART ICs (integrated circuits) are semiconductor devices which can be integrated into your electronics designs to enable UART communication. UART is a popular method of communication in electronics projects. It enables computer hardware to communicate with other modems and serial devices.


When choosing a UART IC, ensure that it meets the requirements of the modem transmission rate.



What does a UART consist of?


One side of the UART feature around 8 data lines and the control pins. The other side of the UART has two serial wires, the Transmission (TX) and the Receiving (RX).



Communication Standards


UARTs may feature a communication standard which defines the signals between devices. These standards include RS-232, RS-422 and RS-485.



What is baud rate?


UART baud rate is the speed at which the data is transferred which is given in bits per second (bit/s or bps). The devices that you are communicating between should both have the same baud rate.



What does Asynchronous mean?


Asynchronous is a type of serial communication where the interfaces at each end are not synchronised by a common clock signal.



What is USART?


USART is very similar in functionality to a UART device. However, it also offers the possibility of a “synchronous” mode.


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Tillv. art.nrTL16C550CPTR
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Tillv. art.nrTL16C554IFN
VarumärkeTexas Instruments
75,027 kr
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Tillv. art.nrTL16C552AFN
VarumärkeTexas Instruments
80,55 kr
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RS-artikelnummer 662-3946
Tillv. art.nrTL16C554FNR
VarumärkeTexas Instruments
105,57 kr
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RS-artikelnummer 182-2508
Tillv. art.nrTL16C450FN
VarumärkeTexas Instruments
41,98 kr
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1 - - - 0.256Mbit/s - Surface Mount PLCC 44 5 V 16.59 x 16.59 x 4.06mm 16.59mm 16.59mm 4.06mm
RS-artikelnummer 662-3911
Tillv. art.nrTL16C452FNR
VarumärkeTexas Instruments
60,28 kr
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RS-artikelnummer 531-2522
Tillv. art.nrTL16C554APN
VarumärkeTexas Instruments
95,96 kr
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4 - 16B 16B 1MBd Yes Surface Mount LQFP 80 5 V 12 x 12 x 1.4mm 12mm 12mm 1.4mm
RS-artikelnummer 121-8680
Tillv. art.nrTL16C554APN
VarumärkeTexas Instruments
76,13 kr
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RS-artikelnummer 178-5498
Tillv. art.nrTL16C552AFN
VarumärkeTexas Instruments
127,354 kr
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RS-artikelnummer 662-5295
Tillv. art.nrTL16C2550PFB
VarumärkeTexas Instruments
58,63 kr
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Tillv. art.nrPC16552DV/NOPB
VarumärkeTexas Instruments
96,06 kr
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Tillv. art.nrTL16C554IFN
VarumärkeTexas Instruments
73,63 kr
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RS-artikelnummer 662-3915
Tillv. art.nrTL16C550CFNR
VarumärkeTexas Instruments
22,668 kr
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1 - 16B 16B 1MBd Yes Surface Mount PLCC 44 3 → 5.25 V 16.59 x 16.59 x 4.06mm 16.59mm 16.59mm 4.06mm
RS-artikelnummer 346-6863
Tillv. art.nrTL16C550CPT
VarumärkeTexas Instruments
45,70 kr
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RS-artikelnummer 545-8072
Tillv. art.nrTL16C554PN
VarumärkeTexas Instruments
117,88 kr
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Tillv. art.nrTL16C550CPTR
VarumärkeTexas Instruments
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Tillv. art.nrTIR1000PSR
VarumärkeTexas Instruments
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- - - - - - Surface Mount SOIC 8 - 6.5 x 5.6 x 1.85mm 6.5mm 5.6mm 1.85mm
RS-artikelnummer 162-7081
Tillv. art.nrTL16C2550PFB
VarumärkeTexas Instruments
40,35 kr
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2 - 16B 16B 1.5MBd Yes Surface Mount TQFP 48 5 V 7 x 7 x 1mm 7mm 7mm 1mm
RS-artikelnummer 545-8117
Tillv. art.nrTL16C754BPN
VarumärkeTexas Instruments
161,92 kr
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4 - 64B 64B 3Mbit/s - Surface Mount LQFP 80 2.7 → 5.5 V 12 x 12 x 1.4mm 12mm 12mm 1.4mm