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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Beskrivning Pris 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-artikelnummer 686-5941
Tillv. art.nrST16C554DCJ68-F
VarumärkeEXAR
83,34 kr
Each
Enheter
4 - 16B 16B 1.5Mbit/s Yes Surface Mount PLCC 68 2.97 → 5.5 V 24.33 x 24.33 x 3.68mm 24.33mm 24.33mm 3.68mm
RS-artikelnummer 170-4449
Tillv. art.nrST16C554DCJ68-F
VarumärkeEXAR
75,226 kr
Each (In a Tube of 19)
Enheter
4 - 16B 16B 1.5Mbit/s Yes Surface Mount PLCC 68 2.97 → 5.5 V 24.33 x 24.33 x 3.68mm 24.33mm 24.33mm 3.68mm
RS-artikelnummer 170-9073
Tillv. art.nrFT232RQ-REEL
VarumärkeFTDI Chip
22,43 kr
Each (On a Reel of 6000)
Enheter
1 RS232, RS422, RS485 UART 256B 128B 3MBd - Surface Mount QFN 32 5 V 5 x 5mm 5mm 5mm -
RS-artikelnummer 730-0168
Tillv. art.nrFT232RQ-REEL
VarumärkeFTDI Chip
42,70 kr
Each
Enheter
1 RS232, RS422, RS485 UART 256B 128B 3MBd - Surface Mount QFN 32 5 V 5 x 5mm 5mm 5mm -
RS-artikelnummer 124-2421
Tillv. art.nrSC16IS752IPW,112
VarumärkeNXP
29,285 kr
Each (In a Tube of 51)
Enheter
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm 9.8mm 4.5mm 0.75mm
RS-artikelnummer 725-8846
Tillv. art.nrSC16IS752IPW,112
VarumärkeNXP
31,12 kr
Each
Enheter
2 IrDA 64B 64B 5Mbit/s - Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.75mm 9.8mm 4.5mm 0.75mm
RS-artikelnummer 923-1581
Tillv. art.nrFT230XS-R
VarumärkeFTDI Chip
14,273 kr
Each (On a Reel of 3000)
Enheter
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in 5mm 0.157in 1.5mm
RS-artikelnummer 923-1584
Tillv. art.nrFT232HL-REEL
VarumärkeFTDI Chip
26,148 kr
Each (On a Reel of 1500)
Enheter
1 RS232, RS422, RS485 UART - - 12Mbit/s - Surface Mount LQFP 48 1.8 V, 3.3 V 7 x 7 x 1.4mm 7mm 7mm 1.4mm
RS-artikelnummer 757-0017
Tillv. art.nrFT200XD-R
VarumärkeFTDI Chip
18,975 kr
Each (In a Pack of 2)
Enheter
1 SIE, UART 512B 512B 3.4Mbit/s Yes Surface Mount DFN 10 5 V 3 x 3 x 0.75mm 3mm 3mm 0.75mm
RS-artikelnummer 737-7843
Tillv. art.nrFT232HL-REEL
VarumärkeFTDI Chip
40,43 kr
Each
Enheter
1 RS232, RS422, RS485 UART - - 12Mbit/s - Surface Mount LQFP 48 1.8 V, 3.3 V 7 x 7 x 1.4mm 7mm 7mm 1.4mm
RS-artikelnummer 923-1590
Tillv. art.nrFT200XD-R
VarumärkeFTDI Chip
13,794 kr
Each (On a Reel of 5000)
Enheter
1 SIE, UART 512B 512B 3.4Mbit/s Yes Surface Mount DFN 10 5 V 3 x 3 x 0.75mm 3mm 3mm 0.75mm
RS-artikelnummer 923-1587
Tillv. art.nrFT232HQ-REEL
VarumärkeFTDI Chip
24,708 kr
Each (On a Reel of 3000)
Enheter
1 RS232, RS422, RS485 UART - - 12Mbit/s - Surface Mount QFN 48 1.8 V, 3.3 V 7 x 7 x 1.4mm 7mm 7mm 1.4mm
RS-artikelnummer 757-0010
Tillv. art.nrFT230XS-R
VarumärkeFTDI Chip
19,44 kr
Each (In a Pack of 2)
Enheter
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in 5mm 0.157in 1.5mm
RS-artikelnummer 737-7852
Tillv. art.nrFT232HQ-REEL
VarumärkeFTDI Chip
40,43 kr
Each
Enheter
1 RS232, RS422, RS485 UART - - 12Mbit/s - Surface Mount QFN 48 1.8 V, 3.3 V 7 x 7 x 1.4mm 7mm 7mm 1.4mm
RS-artikelnummer 170-4579
Tillv. art.nrXR16L2750CM-F
VarumärkeEXAR
49,418 kr
Each (In a Tray of 250)
Enheter
2 IrDA, RS422, RS485 - - 6.25Mbit/s Yes Surface Mount TQFP 48 2.5 V, 3.3 V, 5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-artikelnummer 847-2908
Tillv. art.nrXR16C850CM-F
VarumärkeEXAR
111,88 kr
Each
Enheter
1 IrDA, RS232, RS422, RS485 - - 2Mbit/s Yes Surface Mount TQFP 48 3.3 V, 5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-artikelnummer 622-7964
Tillv. art.nrMAX3100CEE+
VarumärkeMaxim Integrated
48,08 kr
Each
Enheter
1 IrDA 16B 16B 0.23MBd - Surface Mount QSOP 16 2.7 → 5.5 V 4.98 x 3.99 x 1.55mm 4.98mm 3.99mm 1.55mm
RS-artikelnummer 170-4580
Tillv. art.nrXR16C850CM-F
VarumärkeEXAR
84,092 kr
Each (In a Tray of 250)
Enheter
1 IrDA, RS232, RS422, RS485 - - 2Mbit/s Yes Surface Mount TQFP 48 3.3 V, 5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS-artikelnummer 162-7086
Tillv. art.nrTL16C554FNR
VarumärkeTexas Instruments
75,846 kr
Each (On a Reel of 250)
Enheter
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-artikelnummer 888-8722
Tillv. art.nrFT231XS-U
VarumärkeFTDI Chip
15,826 kr
Each (In a Pack of 1160)
Enheter
- - - - - - Surface Mount SSOP 20 - 8.74 x 3.99 x 1.5mm 8.74mm 3.99mm 1.5mm
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