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
21,612 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
41,36 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 923-1584
Tillv. art.nrFT232HL-REEL
VarumärkeFTDI Chip
25,293 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 923-1587
Tillv. art.nrFT232HQ-REEL
VarumärkeFTDI Chip
23,868 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
18,765 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 923-1581
Tillv. art.nrFT230XS-R
VarumärkeFTDI Chip
13,774 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 923-1590
Tillv. art.nrFT200XD-R
VarumärkeFTDI Chip
13,418 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 757-0017
Tillv. art.nrFT200XD-R
VarumärkeFTDI Chip
18,405 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
39,09 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 737-7852
Tillv. art.nrFT232HQ-REEL
VarumärkeFTDI Chip
39,09 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 170-4537
Tillv. art.nrST16C1550CJ28-F
VarumärkeEXAR
41,929 kr
Each (In a Tube of 38)
Enheter
1 RS232, RS422, RS485 16B 16B 1.5Mbit/s - Surface Mount PLCC 28 2.97 → 5.5 V 11.58 x 11.58 x 4.57mm 11.58mm 11.58mm 4.57mm
RS-artikelnummer 700-4374
Tillv. art.nrXR17V358IB176-F
VarumärkeEXAR
153,14 kr
Each
Enheter
8 IrDA 256B 256B 25Mbit/s Yes Surface Mount FBGA 176 3.3 V 13.1 x 13.1 x 1.15mm 13.1mm 13.1mm 1.15mm
RS-artikelnummer 165-9908
Tillv. art.nrSC16C752BIB48,151
VarumärkeNXP
44,222 kr
Each (In a Tray of 250)
Enheter
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 7.1mm 7.1mm 1.45mm
RS-artikelnummer 732-9140
Tillv. art.nrMAX3100CPD+
VarumärkeMaxim Integrated
62,66 kr
Each
Enheter
1 IrDA 16B 16B 0.23MBd - Through Hole PDIP 14 3.3 V, 5 V 19.43 x 7.87 x 4.45mm 19.43mm 7.87mm 4.45mm
RS-artikelnummer 531-2522
Tillv. art.nrTL16C554APN
VarumärkeTexas Instruments
95,96 kr
Each
Enheter
4 - 16B 16B 1MBd Yes Surface Mount LQFP 80 5 V 12 x 12 x 1.4mm 12mm 12mm 1.4mm
RS-artikelnummer 686-5948
Tillv. art.nrST16C554CQ64-F
VarumärkeEXAR
100,40 kr
Each
Enheter
4 - 16B 16B 1.5Mbit/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
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