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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รายละเอียดสินค้า / Description ราคา / 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. 923-1613
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XQ-R
Brand :FTDI Chip
THB60.049
Each (On a Reel of 5000)
Units
- - - - - - - - - - - - - -
RS Stock No. 923-1607
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XS-R
Brand :FTDI Chip
THB60.899
Each (On a Reel of 2000)
Units
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 20 5 V 0.344 x 0.157 x 0.059in 8.74mm 0.157in 1.5mm
RS Stock No. 888-8729
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XQ-T
Brand :FTDI Chip
THB64.96
Each: (In a Pack of 10)
Units
- - - - - - Surface Mount QFN 20 - 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS Stock No. 888-8722
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XS-U
Brand :FTDI Chip
THB60.832
Each: (In a Pack of 1160)
Units
- - - - - - Surface Mount SSOP 20 - 8.74 x 3.99 x 1.5mm 8.74mm 3.99mm 1.5mm
RS Stock No. 757-0045
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XQ-R
Brand :FTDI Chip
THB66.26
Each: (In a Pack of 2)
Units
- - - - - - - - - - - - - -
RS Stock No. 757-0032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT231XS-R
Brand :FTDI Chip
THB66.26
Each: (In a Pack of 2)
Units
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount SSOP 20 5 V 0.344 x 0.157 x 0.059in 8.74mm 0.157in 1.5mm
RS Stock No. 687-7720
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT2232HL
Brand :FTDI Chip
THB232.62
Each
Units
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm 10mm 10mm 1.4mm
RS Stock No. 170-9070
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT2232HL
Brand :FTDI Chip
THB188.908
Each (On a Reel of 1000)
Units
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm 10mm 10mm 1.4mm
RS Stock No. 170-4466
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XR21V1412IL32-F
Brand :EXAR
THB125.93
Each (In a Tray of 490)
Units
- - - - - - Surface Mount QFN 32 - 5 x 5 x 0.88mm 5mm 5mm 0.88mm
ใหม่ / New
RS Stock No. 200-1781
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT230XS-U
Brand :FTDI Chip
THB71.875
Each: (In a Pack of 4)
Units
1 RS232, RS422, RS485, SIE, UART - - 3Mbps - - SSOP 16 5 V - - - -
RS Stock No. 700-4374
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XR17V358IB176-F
Brand :EXAR
THB535.19
Each
Units
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 Stock No. 170-4452
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ST16C650ACQ48-F
Brand :EXAR
THB209.27
Each (In a Tray of 250)
Units
1 IrDA 32B 32B 3.125Mbit/s Yes Surface Mount TQFP 48 2.9 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS Stock No. 923-1616
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT240XQ-R
Brand :FTDI Chip
THB65.592
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. 170-4467
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XR17V358IB176-F
Brand :EXAR
THB413.72
Each (In a Tray of 160)
Units
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 Stock No. 814-4032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TIR1000PSR
THB50.56
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. 700-4371
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XR21V1412IL32-F
Brand :EXAR
THB186.67
Each
Units
- - - - - - Surface Mount QFN 32 - 5 x 5 x 0.88mm 5mm 5mm 0.88mm
RS Stock No. 686-5948
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ST16C554CQ64-F
Brand :EXAR
THB345.01
Each
Units
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
RS Stock No. 546-1472
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TL16C552FN
THB336.12
Each
Units
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 Stock No. 725-8843
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SC16C550BIB48,128
Brand :NXP
THB86.43
Each
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. 797-4737
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SC16C2550BIB48,151
Brand :NXP
THB198.68
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 7.1mm 7.1mm 1.6mm
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