UART

UART stands for Universal Asynchronous Receiver-Transmitter. UART is a type of serial communication interface designed 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. Asynchronous is a type of serial communication where the interfaces at each end are not synchronised by a common clock signal.

These particular UART devices are stand-alone integrated circuits (ICs). However, you can also find UARTs within microcontrollers (MCUs), as they only require two wires for communication.

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).

Where is UART used?

  • Microcontroller based devices
  • GPS receivers
  • Bluetooth devices
  • Modems
  • Wireless communications

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.


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Nombre de résultats par page
Description Prix Number of Channels per Chip Standard Supported Transmit FIFO Receive FIFO Maximum Data Rate Transmitter and Receiver FIFO Counter Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height
N° de stock RS 923-1581
Référence fabricantFT230XS-R
MarqueFTDI Chip
1,291 €
Each (On a Reel of 3000)
Unité
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
N° de stock RS 757-0010
Référence fabricantFT230XS-R
MarqueFTDI Chip
1,82 €
Each (In a Pack of 2)
Unité
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
N° de stock RS 757-0026
Référence fabricantFT230XQ-R
MarqueFTDI Chip
1,765 €
Each (In a Pack of 2)
Unité
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
N° de stock RS 923-1597
Référence fabricantFT230XQ-R
MarqueFTDI Chip
1,291 €
Each (On a Reel of 5000)
Unité
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
N° de stock RS 725-8846
Référence fabricantSC16IS752IPW,112
MarqueNXP
3,01 €
Each
Unité
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm - - -
N° de stock RS 124-2421
Référence fabricantSC16IS752IPW,112
MarqueNXP
2,832 €
Each (In a Tube of 51)
Unité
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm - - -
N° de stock RS 182-2570
Référence fabricantTL16C452FN
6,42 €
Each
Unité
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
N° de stock RS 686-5890
Référence fabricantST16C2550IQ48-F
MarqueMaxLinear
7,19 €
Each
Unité
2 RS232, RS485 16B 16B 4Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm - - -
N° de stock RS 162-7082
Référence fabricantTL16C452FNR
3,506 €
Each (On a Reel of 250)
Unité
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
N° de stock RS 121-8491
Référence fabricantTL16C452FN
5,349 €
Each (In a Tube of 18)
Unité
- - - - - - - - - - - - - -
N° de stock RS 170-9070
Référence fabricantFT2232HL
MarqueFTDI Chip
4,654 €
Each (On a Reel of 1000)
Unité
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm - - -
N° de stock RS 662-3911
Référence fabricantTL16C452FNR
5,58 €
Each
Unité
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
N° de stock RS 687-7720
Référence fabricantFT2232HL
MarqueFTDI Chip
5,58 €
Each
Unité
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm - - -
N° de stock RS 913-4228
Référence fabricantST16C2550IQ48-F
MarqueMaxLinear
3,813 €
Each (In a Tray of 250)
Unité
2 RS232, RS485 16B 16B 4Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm - - -
N° de stock RS 686-5926
Référence fabricantST16C550CQ48-F
MarqueMaxLinear
4,25 €
Each
Unité
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm - - -
Nouveau
N° de stock RS 216-8416
Référence fabricantFT200XD-T
MarqueFTDI Chip
1,417 €
Each (In a Tray of 490)
Unité
- - 512B 512B 3.4Mbps - - DFN 10 +3.3 → 5.25 V - - - -
N° de stock RS 170-9074
Référence fabricantFT220XS-R
MarqueFTDI Chip
1,336 €
Each (On a Reel of 3000)
Unité
1 SIE, UART 512B 512B 500kbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
N° de stock RS 203-5826
Référence fabricantMAX17841BGUE/V+
4,221 €
Each (In a Tube of 96)
Unité
1 UART - - 2Mbps - - TSSOP 16 3.1 → 3.5 V - - - -
Nouveau
N° de stock RS 216-8418
Référence fabricantFT200XD-T
MarqueFTDI Chip
1,70 €
Each (In a Pack of 5)
Unité
- - 512B 512B 3.4Mbps - - DFN 10 +3.3 → 5.25 V - - - -
N° de stock RS 170-4580
Référence fabricantXR16C850CM-F
MarqueEXAR
8,133 €
Each (In a Tray of 250)
Unité
1 IrDA, RS232, RS422, RS485 - - 2Mbit/s Yes Surface Mount TQFP 48 3.3 V, 5 V 7.1 x 7.1 x 1.05mm - - -