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.


...
Read more Read less

Filters

Viewing 1 - 20 of 136 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. 686-6055
Mfr. Part No.XR82C684CJ/44-F
BrandMaxLinear
HK$163.71
Each
units
4 - - - 1Mbit/s - Surface Mount PLCC 44 5 V 16.66 x 16.66 x 3.68mm - - -
RS Stock No. 913-4250
Mfr. Part No.XR82C684CJ/44-F
BrandMaxLinear
HK$147.893
Each (In a Tube of 27)
units
4 - - - 1Mbit/s - Surface Mount PLCC 44 5 V 16.66 x 16.66 x 3.68mm - - -
RS Stock No. 923-1597
Mfr. Part No.FT230XQ-R
BrandFTDI Chip
HK$14.815
Each (On a Reel of 5000)
units
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
RS Stock No. 757-0026
Mfr. Part No.FT230XQ-R
BrandFTDI Chip
HK$19.225
Each (In a Pack of 2)
units
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm - - -
New
RS Stock No. 216-8422
Mfr. Part No.FT201XS-U
BrandFTDI Chip
HK$18.706
Each (In a Pack of 5)
units
- - 512B 512B 3.4Mbps - - SSOP 16 +3.3 → 5.25 V - - - -
RS Stock No. 923-1616
Mfr. Part No.FT240XQ-R
BrandFTDI Chip
HK$14.469
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 - - -
RS Stock No. 484-1445
Mfr. Part No.SC28L92A1B,551
BrandNXP
HK$136.24
Each
units
2 - 16B 16B 0.23MBd - Surface Mount PQFP 44 2.97 → 5.5 V 10 x 10 x 1.75mm - - -
RS Stock No. 189-7773
Mfr. Part No.MAX3107EAG+
HK$60.919
Each (In a Tube of 58)
units
1 RS232, RS485 - - 24Mbps Yes Surface Mount SSOP 24 2.35 → 3.6 V 8.33 x 5.38 x 1.78mm - - -
New
RS Stock No. 216-8419
Mfr. Part No.FT201XQ-T
BrandFTDI Chip
HK$15.553
Each (In a Tray of 490)
units
- - 512B 512B 3.4Mbps - - QFN 16 +3.3 → 5.25 V - - - -
RS Stock No. 165-9902
Mfr. Part No.SC16C654DBIB64,151
BrandNXP
HK$89.04
Each (In a Tray of 160)
units
4 UART 64B 64B 5Mbit/s Yes Surface Mount LQFP 64 2.5 V, 3.3 V, 5 V 10.1 x 10.1 x 1.45mm - - -
RS Stock No. 170-4542
Mfr. Part No.XR16V554DIV-F
BrandEXAR
HK$80.206
Each (In a Tray of 160)
units
4 - 16B 16B 4Mbit/s - Surface Mount LQFP 64 2.25 → 3.6 V 10.1 x 10.1 x 1.45mm - - -
RS Stock No. 757-0023
Mfr. Part No.FT201XS-R
BrandFTDI Chip
HK$19.225
Each (In a Pack of 2)
units
1 SIE, UART 512B 512B 3.4Mbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in - - -
RS Stock No. 170-4453
Mfr. Part No.ST16C554DIJ68-F
BrandEXAR
HK$96.946
Each (In a Tube of 19)
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 - - -
RS Stock No. 913-4222
Mfr. Part No.ST16C2552CJ44TR-F
BrandMaxLinear
HK$38.721
Each (On a Reel of 500)
units
2 RS232, RS485 16B 16B 4Mbit/s Yes Surface Mount PLCC 44 2.97 → 5.5 V 16.66 x 16.66 x 3.68mm - - -
RS Stock No. 189-7774
Mfr. Part No.MAX3107ETG+
HK$54.248
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 - - -
RS Stock No. 797-4737
Mfr. Part No.SC16C2550BIB48,151
BrandNXP
HK$66.94
Each
units
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 Stock No. 769-5567
Mfr. Part No.ST16C654IQ64-F
BrandMaxLinear
HK$140.70
Each
units
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 Stock No. 189-7769
Mfr. Part No.MAX14830ETM+
HK$144.328
Each (In a Tube of 43)
units
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 → 3.6 V 7.1 x 7.1 x 0.75mm - - -
RS Stock No. 170-4554
Mfr. Part No.XR28V382IL32-F
BrandEXAR
HK$30.104
Each (In a Tray of 490)
units
2 IrDA, RS232, RS485 128B 128B 3Mbit/s Yes Surface Mount QFN 32 3.3 V 5 x 5 x 0.95mm - - -
RS Stock No. 170-4457
Mfr. Part No.XR17V258IV-F
BrandEXAR
HK$299.668
Each (In a Tube of 60)
units
8 IrDA 64B 64B 8Mbit/s Yes Surface Mount LQFP 144 3.3 V 20.1 x 20.1 x 1.45mm - - -