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.


...
Read more Read less

Filters

Viewing 41 - 60 of 168 products
Results per page
Description Price 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 Stock No. 686-5954
Mfr. Part No.ST16C554DIJ68-F
BrandEXAR
PHP642.10
Each
units
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 Stock No. 170-4514
Mfr. Part No.ST16C654IJ68-F
BrandEXAR
PHP736.998
Each (In a Tube of 19)
units
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 Stock No. 622-7964
Mfr. Part No.MAX3100CEE+
PHP269.09
Each
units
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 Stock No. 170-4468
Mfr. Part No.XR21V1410IL16-F
BrandEXAR
PHP134.93
Each (In a Tray of 490)
units
- - - - - - Surface Mount QFN 16 - 3 x 3 x 0.88mm 3mm 3mm 0.88mm
RS Stock No. 182-2570
Mfr. Part No.TL16C452FN
PHP360.67
Each
units
2 - - - 0.256Mbit/s - Surface Mount PLCC 68 5 V 24.23 x 24.23 x 4.06mm 24.23mm 24.23mm 4.06mm
RS Stock No. 814-4032
Mfr. Part No.TIR1000PSR
PHP83.48
Each (On a Tape of 5)
units
- - - - - - Surface Mount SOIC 8 - 6.5 x 5.6 x 1.85mm 6.5mm 5.6mm 1.85mm
RS Stock No. 769-5620
Mfr. Part No.XR88C681J-F
BrandEXAR
PHP501.38
Each
units
2 RS232, RS422, RS485 1B 3B 1Mbit/s - Surface Mount PLCC 44 5 V 16.66 x 16.66 x 4.57mm 16.66mm 16.66mm 4.57mm
RS Stock No. 166-0323
Mfr. Part No.SC16C550BIB48,128
BrandNXP
PHP95.402
Each (On a Reel of 2000)
units
1 UART 16B 16B 3Mbit/s - Surface Mount LQFP 48 2.5 V, 3.3 V, 5 V 7 x 7 x 1.4mm 7mm 7mm 1.4mm
RS Stock No. 769-5605
Mfr. Part No.XR20M1170IG16-F
BrandEXAR
PHP185.33
Each (In a Pack of 2)
units
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 Stock No. 923-1616
Mfr. Part No.FT240XQ-R
BrandFTDI Chip
PHP95.861
Each (On a Reel of 5000)
units
1 SIE 512B 512B 1Mbit/s Yes Surface Mount QFN 24 5 V 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS Stock No. 165-9559
Mfr. Part No.MAX3109ETJ+
PHP558.735
Each (In a Tube of 60)
units
1 RS232, RS485 - - 24Mbit/s Yes Surface Mount TQFN 32 1.71 → 3.6 V 5.0 x 5.0 x 0.43mm 5mm 5.0mm 0.43mm
RS Stock No. 700-4377
Mfr. Part No.XR21V1410IL16-F
BrandEXAR
PHP199.63
Each
units
- - - - - - Surface Mount QFN 16 - 3 x 3 x 0.88mm 3mm 3mm 0.88mm
RS Stock No. 170-4466
Mfr. Part No.XR21V1412IL32-F
BrandEXAR
PHP207.90
Each (In a Tray of 490)
units
- - - - - - Surface Mount QFN 32 - 5 x 5 x 0.88mm 5mm 5mm 0.88mm
RS Stock No. 923-1593
Mfr. Part No.FT201XS-R
BrandFTDI Chip
PHP82.00
Each (On a Reel of 3000)
units
1 SIE, UART 512B 512B 3.4Mbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in 5mm 0.157in 1.5mm
New
RS Stock No. 189-7774
Mfr. Part No.MAX3107ETG+
PHP311.477
Each (In a Tube of 86)
units
1 RS232, RS485 - - 24Mbps Yes Surface Mount TQFN 24 2.35 3.6 V 3.6 x 3.6 x 0.75mm 3.6mm 3.6mm 0.75mm
RS Stock No. 686-6023
Mfr. Part No.XR17V258IV-F
BrandEXAR
PHP2,072.41
Each
units
8 IrDA 64B 64B 8Mbit/s Yes Surface Mount LQFP 144 3.3 V 20.1 x 20.1 x 1.45mm 20.1mm 20.1mm 1.45mm
RS Stock No. 646-6327
Mfr. Part No.PC16552DV/NOPB
PHP600.94
Each
units
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
RS Stock No. 786-1001
Mfr. Part No.MAX3140CEI+
PHP398.76
Each
units
1 RS422, RS485 - - 230kBd - Surface Mount QSOP 28 4.75 → 5.25 V 9.98 x 3.99 x 1.5mm 9.98mm 3.99mm 1.5mm
RS Stock No. 162-7085
Mfr. Part No.TL16C554AIPN
PHP441.96
Each (In a Tube of 119)
units
4 - 16B 16B 1MBd Yes Surface Mount LQFP 80 5 V 12 x 12 x 1.4mm 12mm 12mm 1.4mm
RS Stock No. 124-2422
Mfr. Part No.SC16IS762IPW,112
BrandNXP
PHP234.102
Each (In a Tube of 51)
units
2 IrDA, UART - - 5Mbit/s Yes Surface Mount TSSOP 28 2.5 V, 3.3 V 9.8 x 4.5 x 0.95mm 9.8mm 4.5mm 0.95mm
Related Products
Infrared serial communications encoder/decoder ICs which conform to ...
Description:
Infrared serial communications encoder/decoder ICs which conform to the IrDA (Infrared Data Association) protocol standard. These devices provide the required interface between an Infrared optical transceiver and a UART or microcontroller.
Exar offer a variety of UARTs (Universal Asynchronous ...
Description:
Exar offer a variety of UARTs (Universal Asynchronous Receiver Transmitter) with a broad range of first in, first out (FIFO) depths, while supporting popular central processing unit (CPU) bus interface such as 8-bit VLIO.
Small TQFN and QSOP Packages AvailableFull-Featured UART:IrDA SIR ...
Description:
Small TQFN and QSOP Packages AvailableFull-Featured UART:IrDA SIR Timing Compatible8-Word FIFO Minimizes Processor Overhead at High Data RatesUp to 230k Baud with a 3.6864MHz Crystal9-Bit Address-Recognition InterruptReceive Activity Interrupt in Shutdown SPI/MICROWIRE-Compatible μC InterfaceLowest Power:150μA ...
Exar offer a variety of UARTs (Universal Asynchronous ...
Description:
Exar offer a variety of UARTs (Universal Asynchronous Receiver Transmitter) with a broad range of first in, first out (FIFO) depths, while supporting popular central processing unit (CPU) bus interface such as 8-bit VLIO.