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. 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. 757-0014
FabrikantnummerFT220XS-R
FabrikantFTDI Chip
€ 1,765
Each (In a Pack of 2)
Aantal stuks
1 SIE, UART 512B 512B 500kbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
RS-stocknr. 686-5957
FabrikantnummerST16C554DIQ64-F
FabrikantMaxLinear
€ 9,21
Each
Aantal stuks
4 - 16B 16B 1.5Mbit/s Yes Surface Mount LQFP 64 2.97 → 5.5 V 10.1 x 10.1 x 1.45mm - - -
RS-stocknr. 170-9074
FabrikantnummerFT220XS-R
FabrikantFTDI Chip
€ 1,336
Each (On a Reel of 3000)
Aantal stuks
1 SIE, UART 512B 512B 500kbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
RS-stocknr. 686-5954
FabrikantnummerST16C554DIJ68-F
FabrikantMaxLinear
€ 10,35
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 - - -
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 - - -
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 - - - -
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. 811-2971
FabrikantnummerXR28V382IL32-F
FabrikantMaxLinear
€ 2,38
Each
Aantal stuks
2 IrDA, RS232, RS485 128B 128B 3Mbit/s Yes Surface Mount QFN 32 3.3 V 5 x 5 x 0.95mm - - -
RS-stocknr. 190-1253
FabrikantnummerMAX3100CEE+
FabrikantMaxim Integrated
€ 4,34
Each (In a Pack of 2)
Aantal stuks
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm - - -
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. 686-5945
FabrikantnummerST16C554DCQ64-F
FabrikantMaxLinear
€ 7,89
Each
Aantal stuks
4 - 16B 16B 1.5Mbit/s Yes Surface Mount LQFP 64 2.97 → 5.5 V 10.1 x 10.1 x 1.45mm - - -
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. 190-1465
FabrikantnummerMAX14830ETM+
FabrikantMaxim Integrated
€ 12,11
Each
Aantal stuks
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 → 3.6 V 7.1 x 7.1 x 0.75mm - - -
RS-stocknr. 686-5888
FabrikantnummerST16C2550CQ48-F
FabrikantMaxLinear
€ 5,36
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. 814-4032
FabrikantnummerTIR1000PSR
€ 1,354
Each (On a Tape of 5)
Aantal stuks
- - - - - - Surface Mount SOIC 8 - 6.5 x 5.6 x 1.85mm - - -
RS-stocknr. 686-6001
FabrikantnummerXR16L788IQ-F
FabrikantMaxLinear
€ 30,74
Each
Aantal stuks
8 IrDA 64B 64B 6.25Mbit/s Yes Surface Mount PQFP 100 2.97 → 5.5 V 20.1 x 14.1 x 3.05mm - - -
RS-stocknr. 686-5948
FabrikantnummerST16C554CQ64-F
FabrikantMaxLinear
€ 7,89
Each
Aantal stuks
4 - 16B 16B 1.5Mbit/s Yes Surface Mount LQFP 64 2.97 → 5.5 V 10.1 x 10.1 x 1.45mm - - -
RS-stocknr. 769-5567
FabrikantnummerST16C654IQ64-F
FabrikantMaxLinear
€ 13,51
Each
Aantal stuks
4 IrDA, RS232, RS422, RS485 64B 64B 1.5Mbit/s - Surface Mount LQFP 64 2.97 → 5.5 V 10 x 10 x 1.4mm - - -
RS-stocknr. 732-9140
FabrikantnummerMAX3100CPD+
FabrikantMaxim Integrated
€ 6,06
Each
Aantal stuks
1 IrDA 16B 16B 0.23MBd - Through Hole PDIP 14 3.3 V, 5 V 19.43 x 7.87 x 4.45mm - - -