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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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 165-9562
Référence fabricantMAX3100CPD+
5,083 €
Each (In a Tube of 25)
Unité
1 IrDA 16B 16B 0.23MBd - Through Hole PDIP 14 3.3 V, 5 V 19.43 x 7.87 x 4.45mm - - -
N° de stock RS 189-7770
Référence fabricantMAX3100CEE+
3,851 €
Each (In a Tube of 100)
Unité
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm - - -
N° de stock RS 190-1312
Référence fabricantMAX3100EEE+
5,835 €
Each (In a Pack of 2)
Unité
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm - - -
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 - - - -
N° de stock RS 165-9400
Référence fabricantMAX3140CEI+
5,85 €
Each (In a Tube of 50)
Unité
1 RS422, RS485 - - 230kBd - Surface Mount QSOP 28 4.75 → 5.25 V 9.98 x 3.99 x 1.5mm - - -
N° de stock RS 189-7772
Référence fabricantMAX3100EEE+
5,178 €
Each (In a Tube of 100)
Unité
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm - - -
N° de stock RS 203-5827
Référence fabricantMAX17841BGUE/V+
6,38 €
Each
Unité
1 UART - - 2Mbps - - TSSOP 16 3.1 → 3.5 V - - - -
N° de stock RS 190-1375
Référence fabricantMAX3109ETJ+
5,785 €
Each (In a Pack of 2)
Unité
1 RS232, RS485 - - 24Mbit/s Yes Surface Mount TQFN 32 1.71 → 3.6 V 5.0 x 5.0 x 0.43mm - - -
N° de stock RS 189-7773
Référence fabricantMAX3107EAG+
5,015 €
Each (In a Tube of 58)
Unité
1 RS232, RS485 - - 24Mbps Yes Surface Mount SSOP 24 2.35 → 3.6 V 8.33 x 5.38 x 1.78mm - - -
N° de stock RS 732-9140
Référence fabricantMAX3100CPD+
6,06 €
Each
Unité
1 IrDA 16B 16B 0.23MBd - Through Hole PDIP 14 3.3 V, 5 V 19.43 x 7.87 x 4.45mm - - -
N° de stock RS 190-6193
Référence fabricantMAX3100CEE+T
3,851 €
Each (On a Reel of 2500)
Unité
1 IrDA, RS232, RS485 - - - - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.65mm - - -
N° de stock RS 190-7271
Référence fabricantMAX3100CEE+T
4,41 €
Each
Unité
- - - - - - - - - - - - - -
N° de stock RS 799-2849
Référence fabricantMAX3109ETJ+
6,92 €
Each
Unité
1 RS232, RS485 - - 24Mbit/s Yes Surface Mount TQFN 32 1.71 to 3.6 V 5.0 x 5.0 x 0.43mm - - -
N° de stock RS 189-7769
Référence fabricantMAX14830ETM+
12,107 €
Each (In a Tube of 43)
Unité
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 → 3.6 V 7.1 x 7.1 x 0.75mm - - -
N° de stock RS 165-9559
Référence fabricantMAX3109ETJ+
5,765 €
Each (In a Tube of 60)
Unité
1 RS232, RS485 - - 24Mbit/s Yes Surface Mount TQFN 32 1.71 → 3.6 V 5.0 x 5.0 x 0.43mm - - -
N° de stock RS 190-1351
Référence fabricantMAX3107ETG+
5,635 €
Each (In a Pack of 2)
Unité
1 RS232, RS485 - - 24Mbps Yes Surface Mount TQFN 24 2.35 → 3.6 V 3.6 x 3.6 x 0.75mm - - -
N° de stock RS 189-7775
Référence fabricantMAX3109ETJ+
5,668 €
Each (In a Tube of 60)
Unité
1 RS232, RS485 - - 24Mbit/s Yes Surface Mount TQFN 32 1.71 → 3.6 V 5.0 x 5.0 x 0.43mm - - -
N° de stock RS 190-1253
Référence fabricantMAX3100CEE+
4,34 €
Each (In a Pack of 2)
Unité
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm - - -
N° de stock RS 190-1333
Référence fabricantMAX3107EAG+
5,765 €
Each (In a Pack of 2)
Unité
1 RS232, RS485 - - 24Mbps Yes Surface Mount SSOP 24 2.35 → 3.6 V 8.33 x 5.38 x 1.78mm - - -
N° de stock RS 190-1465
Référence fabricantMAX14830ETM+
12,11 €
Each
Unité
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 → 3.6 V 7.1 x 7.1 x 0.75mm - - -