Universal Asynchronous Receivers & Transmitters

Universal Asynchronous Receiver-Transmitter, more commonly referred to as UART, is a type of serial communication interface. UART’s 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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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庫存編號 888-8716
製造零件編號FT230XQ-T
BrandFTDI Chip
HK$13.585
/個 (每包:10個)
單位
- - - - - - Surface Mount QFN 16 - 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS庫存編號 923-1597
製造零件編號FT230XQ-R
BrandFTDI Chip
HK$13.817
個 (在毎卷:5000)
單位
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS庫存編號 757-0026
製造零件編號FT230XQ-R
BrandFTDI Chip
HK$17.16
/個 (每包:2個)
單位
1 RS232, RS422, RS485, SIE, UART 512B 512B 3MBd Yes Surface Mount QFN 16 5 V 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS庫存編號 737-7852
製造零件編號FT232HQ-REEL
BrandFTDI Chip
HK$35.75
單位
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庫存編號 757-0017
製造零件編號FT200XD-R
BrandFTDI Chip
HK$17.05
/個 (每包:2個)
單位
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庫存編號 888-8722
製造零件編號FT231XS-U
BrandFTDI Chip
HK$12.69
/個 (每包:1160個)
單位
- - - - - - Surface Mount SSOP 20 - 8.74 x 3.99 x 1.5mm 8.74mm 3.99mm 1.5mm
RS庫存編號 757-0045
製造零件編號FT231XQ-R
BrandFTDI Chip
HK$17.42
/個 (每包:2個)
單位
- - - - - - - - - - - - - -
RS庫存編號 687-7720
製造零件編號FT2232HL
BrandFTDI Chip
HK$55.24
單位
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm 10mm 10mm 1.4mm
RS庫存編號 757-0036
製造零件編號FT221XS-R
BrandFTDI Chip
HK$17.42
/個 (每包:2個)
單位
1 SIE, UART 512B 512B 1Mbit/s Yes Surface Mount SSOP 20 5 V 0.344 x 0.157 x 0.059in 8.74mm 0.157in 1.5mm
RS庫存編號 923-1613
製造零件編號FT231XQ-R
BrandFTDI Chip
HK$14.206
個 (在毎卷:5000)
單位
- - - - - - - - - - - - - -
RS庫存編號 757-0023
製造零件編號FT201XS-R
BrandFTDI Chip
HK$17.16
/個 (每包:2個)
單位
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
RS庫存編號 170-9074
製造零件編號FT220XS-R
BrandFTDI Chip
HK$17.13
個 (在毎卷:3000)
單位
1 SIE, UART 512B 512B 500kbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in 5mm 0.157in 1.5mm
RS庫存編號 170-9070
製造零件編號FT2232HL
BrandFTDI Chip
HK$41.457
個 (在毎卷:1000)
單位
2 RS232, RS422, RS485 - - 480Mbit/s - Surface Mount LQFP 64 - 10 x 10 x 1.4mm 10mm 10mm 1.4mm
RS庫存編號 923-1581
製造零件編號FT230XS-R
BrandFTDI Chip
HK$13.818
個 (在毎卷:3000)
單位
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庫存編號 888-8729
製造零件編號FT231XQ-T
BrandFTDI Chip
HK$14.143
/個 (每包:10個)
單位
- - - - - - Surface Mount QFN 20 - 4 x 4 x 0.75mm 4mm 4mm 0.75mm
RS庫存編號 923-1600
製造零件編號FT221XS-R
BrandFTDI Chip
HK$12.565
個 (在毎卷:3000)
單位
1 SIE, UART 512B 512B 1Mbit/s Yes Surface Mount SSOP 20 5 V 0.344 x 0.157 x 0.059in 8.74mm 0.157in 1.5mm
RS庫存編號 737-7843
製造零件編號FT232HL-REEL
BrandFTDI Chip
HK$35.75
單位
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庫存編號 757-0014
製造零件編號FT220XS-R
BrandFTDI Chip
HK$16.05
/個 (每包:2個)
單位
1 SIE, UART 512B 512B 500kbit/s Yes Surface Mount SSOP 16 5 V 0.197 x 0.157 x 0.059in 5mm 0.157in 1.5mm
RS庫存編號 757-0010
製造零件編號FT230XS-R
BrandFTDI Chip
HK$15.43
/個 (每包:2個)
單位
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庫存編號 757-0051
製造零件編號FT240XQ-R
BrandFTDI Chip
HK$18.41
/個 (每包:2個)
單位
1 SIE 512B 512B 1Mbit/s Yes Surface Mount QFN 24 5 V 4 x 4 x 0.75mm 4mm 4mm 0.75mm