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. 124-2422
FabrikantnummerSC16IS762IPW,112
FabrikantNXP
€ 2,852
Each (In a Tube of 51)
Aantal stuks
2 IrDA, UART - - 5Mbit/s Yes Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.95mm - - -
RS-stocknr. 816-0239
FabrikantnummerSC16IS762IPW,112
FabrikantNXP
€ 2,96
Each (In a Pack of 3)
Aantal stuks
2 IrDA, UART - - 5Mbit/s Yes Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.95mm - - -
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. 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. 124-2420
FabrikantnummerSC16C2550BIB48,151
FabrikantNXP
€ 3,695
Each (In a Tray of 250)
Aantal stuks
2 UART 16B 16B 5Mbit/s Yes Surface Mount LQFP 48 2.5 V, 3.3 V, 5 V 7.1 x 7.1 x 1.6mm - - -
RS-stocknr. 165-9908
FabrikantnummerSC16C752BIB48,151
FabrikantNXP
€ 2,631
Each (In a Tray of 250)
Aantal stuks
2 UART 64B 64B 5Mbit/s Yes Surface Mount LQFP 48 2.2 V, 2.5 V, 5 V 7.1 x 7.1 x 1.45mm - - -
RS-stocknr. 797-4737
FabrikantnummerSC16C2550BIB48,151
FabrikantNXP
€ 3,75
Each
Aantal stuks
2 UART 16B 16B 5Mbit/s Yes Surface Mount LQFP 48 2.5 V, 3.3 V, 5 V 7.1 x 7.1 x 1.6mm - - -
RS-stocknr. 484-1445
FabrikantnummerSC28L92A1B,551
FabrikantNXP
€ 7,88
Each
Aantal stuks
2 - 16B 16B 0.23MBd - Surface Mount PQFP 44 2.97 → 5.5 V 10 x 10 x 1.75mm - - -
RS-stocknr. 124-2426
FabrikantnummerSC28L92A1B,551
FabrikantNXP
€ 7,674
Each (In a Tray of 96)
Aantal stuks
2 - 16B 16B 0.23MBd - Surface Mount PQFP 44 2.97 → 5.5 V 10 x 10 x 1.75mm - - -
RS-stocknr. 165-9902
FabrikantnummerSC16C654DBIB64,151
FabrikantNXP
€ 5,22
Each (In a Tray of 160)
Aantal stuks
4 UART 64B 64B 5Mbit/s Yes Surface Mount LQFP 64 2.5 V, 3.3 V, 5 V 10.1 x 10.1 x 1.45mm - - -
RS-stocknr. 797-4753
FabrikantnummerSC16C752BIB48,151
FabrikantNXP
€ 2,68
Each
Aantal stuks
2 UART 64B 64B 5Mbit/s Yes Surface Mount LQFP 48 2.2 V, 2.5 V, 5 V 7.1 x 7.1 x 1.45mm - - -
RS-stocknr. 797-4759
FabrikantnummerSC16C654DBIB64,151
FabrikantNXP
€ 5,31
Each
Aantal stuks
4 UART 64B 64B 5Mbit/s Yes Surface Mount LQFP 64 2.5 V, 3.3 V, 5 V 10.1 x 10.1 x 1.45mm - - -
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. 725-8843
FabrikantnummerSC16C550BIB48,128
FabrikantNXP
€ 2,29
Each
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 - - -