Universal Asynchronous Receivers & Transmitters

Universal Asynchronous Receiver-Transmitter, more commonly referred to as UART, is a type of serial communication interface. UARTs primary function is 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.

These particular UARTs are stand-alone integrated circuits (ICs). However, you can also find UARTs within microcontrollers (MCUs).

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).

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.

What does Asynchronous mean?

Asynchronous is a type of serial communication where the interfaces at each end are not synchronised by a common clock signal.

What is USART?

USART is very similar in functionality to a UART device. However, it also offers the possibility of a synchronous mode.


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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. 686-5998
FabrikantnummerXR16L784CV-F
FabrikantEXAR
€ 21,02
Each
Aantal stuks
4 IrDA 64B 64B 6.25Mbit/s Yes Surface Mount LQFP 64 2.97 → 5.5 V 10.1 x 10.1 x 1.45mm 10.1mm 10.1mm 1.45mm
RS-stocknr. 170-4513
FabrikantnummerST16C654DIQ64-F
FabrikantEXAR
€ 11,865
Each (In a Tray of 160)
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 10mm 10mm 1.4mm
RS-stocknr. 170-4446
FabrikantnummerST16C550CQ48-F
FabrikantEXAR
€ 2,919
Each (In a Tray of 250)
Aantal stuks
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-stocknr. 121-8680
FabrikantnummerTL16C554APN
€ 6,796
Each (In a Tray of 119)
Aantal stuks
4 - 16B 16B 1MBd Yes Surface Mount LQFP 80 5 V 12 x 12 x 1.4mm 12mm 12mm 1.4mm
RS-stocknr. 162-8368
FabrikantnummerTIR1000PSR
€ 0,634
Each (On a Reel of 2000)
Aantal stuks
- - - - - - Surface Mount SOIC 8 - 6.5 x 5.6 x 1.85mm 6.5mm 5.6mm 1.85mm
RS-stocknr. 545-8044
FabrikantnummerTL16C554IFN
€ 10,67
Each
Aantal stuks
4 - 16B 16B 1MBd Yes Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm 24.23mm 24.23mm 4.06mm
RS-stocknr. 923-7661
FabrikantnummerMAX14830ETM+
FabrikantMaxim Integrated
€ 12,989
Each (In a Tube of 43)
Aantal stuks
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 → 3.6 V 7.1 x 7.1 x 0.75mm 7.1mm 7.1mm 0.75mm
RS-stocknr. 170-4454
FabrikantnummerXR16C2850CM-F
FabrikantEXAR
€ 10,37
Each (In a Tray of 250)
Aantal stuks
2 IrDA 128B 128B 6.25Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-stocknr. 546-1472
FabrikantnummerTL16C552FN
€ 8,20
Each
Aantal stuks
2 - 16B 16B 1Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm 24.23mm 24.23mm 4.06mm
RS-stocknr. 662-5295
FabrikantnummerTL16C2550PFB
€ 4,79
Each
Aantal stuks
2 - 16B 16B 1.5MBd Yes Surface Mount TQFP 48 5 V 7 x 7 x 1mm 7mm 7mm 1mm
RS-stocknr. 170-4514
FabrikantnummerST16C654IJ68-F
FabrikantEXAR
€ 12,818
Each (In a Tube of 19)
Aantal stuks
4 IrDA, RS232, RS422, RS485 64B 64B 1.5Mbit/s - Surface Mount PLCC 68 2.97 → 5.5 V 24.33 x 24.33 x 5.08mm 24.33mm 24.33mm 5.08mm
RS-stocknr. 189-7769
FabrikantnummerMAX14830ETM+
FabrikantMaxim Integrated
€ 12,989
Each (In a Tube of 43)
Aantal stuks
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 3.6 V 7.1 x 7.1 x 0.75mm 7.1mm 7.1mm 0.75mm
RS-stocknr. 170-4447
FabrikantnummerST16C550IQ48-F
FabrikantEXAR
€ 3,398
Each (In a Tray of 250)
Aantal stuks
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-stocknr. 686-5932
FabrikantnummerST16C550IQ48-F
FabrikantEXAR
€ 5,14
Each
Aantal stuks
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-stocknr. 173-0790
FabrikantnummerXR20M1170IG16-F
FabrikantEXAR
€ 2,451
Each (In a Tube of 95)
Aantal stuks
1 IrDA, RS232, RS422, RS485 64B 64B 16Mbit/s Yes Surface Mount TSSOP 16 1.6 → 3.6 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm
RS-stocknr. 811-2971
FabrikantnummerXR28V382IL32-F
FabrikantEXAR
€ 4,47
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 5mm 5mm 0.95mm
Nieuw
RS-stocknr. 190-7271
FabrikantnummerMAX3100CEE+T
FabrikantMaxim Integrated
€ 4,76
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 913-4250
FabrikantnummerXR82C684CJ/44-F
FabrikantEXAR
€ 13,502
Each (In a Tube of 27)
Aantal stuks
4 - - - 1Mbit/s - Surface Mount PLCC 44 5 V 16.66 x 16.66 x 3.68mm 16.66mm 16.66mm 3.68mm
Nieuw
RS-stocknr. 200-1778
FabrikantnummerFT230XQ-T
FabrikantFTDI Chip
€ 1,775
Each (In a Pack of 4)
Aantal stuks
1 RS232, RS422, RS485, SIE, UART - - 3Mbps - - QFN 16 5 V - - - -
RS-stocknr. 646-6327
FabrikantnummerPC16552DV/NOPB
€ 9,40
Each
Aantal stuks
2 - 16B 16B 1.5MBd Yes Surface Mount PLCC 44 5 V 16.51 x 16.51 x 3.68mm 16.51mm 16.51mm 3.68mm
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