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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Omschrijving Prijs 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
RS-stocknr. 923-1581
FabrikantnummerFT230XS-R
FabrikantFTDI Chip
1,291 €
Each (On a Reel of 3000)
Aantal stuks
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
RS-stocknr. 757-0010
FabrikantnummerFT230XS-R
FabrikantFTDI Chip
1,765 €
Each (In a Pack of 2)
Aantal stuks
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
RS-stocknr. 757-0026
FabrikantnummerFT230XQ-R
FabrikantFTDI Chip
1,765 €
Each (In a Pack of 2)
Aantal stuks
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
RS-stocknr. 888-8716
FabrikantnummerFT230XQ-T
FabrikantFTDI Chip
1,698 €
Each (In a Pack of 10)
Aantal stuks
- - - - - - Surface Mount QFN 16 - 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS-stocknr. 923-1597
FabrikantnummerFT230XQ-R
FabrikantFTDI Chip
1,291 €
Each (On a Reel of 5000)
Aantal stuks
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
RS-stocknr. 725-8846
FabrikantnummerSC16IS752IPW,112
FabrikantNXP
3,01 €
Each
Aantal stuks
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm - - -
RS-stocknr. 124-2421
FabrikantnummerSC16IS752IPW,112
FabrikantNXP
2,832 €
Each (In a Tube of 51)
Aantal stuks
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm - - -
RS-stocknr. 121-8491
FabrikantnummerTL16C452FN
5,349 €
Each (In a Tube of 18)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 687-7720
FabrikantnummerFT2232HL
FabrikantFTDI Chip
5,58 €
Each
Aantal stuks
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm - - -
RS-stocknr. 686-5890
FabrikantnummerST16C2550IQ48-F
FabrikantMaxLinear
7,19 €
Each
Aantal stuks
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 - - -
RS-stocknr. 162-7082
FabrikantnummerTL16C452FNR
3,506 €
Each (On a Reel of 250)
Aantal stuks
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
RS-stocknr. 182-2570
FabrikantnummerTL16C452FN
6,42 €
Each
Aantal stuks
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
RS-stocknr. 913-4228
FabrikantnummerST16C2550IQ48-F
FabrikantMaxLinear
3,813 €
Each (In a Tray of 250)
Aantal stuks
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 - - -
RS-stocknr. 662-3911
FabrikantnummerTL16C452FNR
5,58 €
Each
Aantal stuks
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm - - -
RS-stocknr. 170-9070
FabrikantnummerFT2232HL
FabrikantFTDI Chip
4,654 €
Each (On a Reel of 1000)
Aantal stuks
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm - - -
Nieuw
RS-stocknr. 216-8421
FabrikantnummerFT201XS-U
FabrikantFTDI Chip
1,606 €
Each (In a Tube of 100)
Aantal stuks
- - 512B 512B 3.4Mbps - - SSOP 16 +3.3 → 5.25 V - - - -
Nieuw
RS-stocknr. 216-8422
FabrikantnummerFT201XS-U
FabrikantFTDI Chip
1,744 €
Each (In a Pack of 5)
Aantal stuks
- - 512B 512B 3.4Mbps - - SSOP 16 +3.3 → 5.25 V - - - -
RS-stocknr. 166-0323
FabrikantnummerSC16C550BIB48,128
FabrikantNXP
1,276 €
Each (On a Reel of 2000)
Aantal stuks
1 UART 16B 16B 3Mbit/s - Surface Mount LQFP 48 2.5 V, 3.3 V, 5 V 7 x 7 x 1.4mm - - -
RS-stocknr. 686-6023
FabrikantnummerXR17V258IV-F
FabrikantMaxLinear
33,29 €
Each
Aantal stuks
8 IrDA 64B 64B 8Mbit/s Yes Surface Mount LQFP 144 3.3 V 20.1 x 20.1 x 1.45mm - - -
RS-stocknr. 686-5941
FabrikantnummerST16C554DCJ68-F
FabrikantMaxLinear
7,23 €
Each
Aantal stuks
4 - 16B 16B 1.5Mbit/s Yes Surface Mount PLCC 68 2.97 → 5.5 V 24.33 x 24.33 x 3.68mm - - -