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.


...
顯示內容 隱藏內容

篩選條件

正在檢視 21 - 40,共 168 項產品
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庫存編號 662-3915
製造零件編號TL16C550CFNR
HK$40.836
/個 (每包:5個)
單位
1 - 16B 16B 1MBd Yes Surface Mount PLCC 44 3 → 5.25 V 16.59 x 16.59 x 4.06mm 16.59mm 16.59mm 4.06mm
RS庫存編號 757-0045
製造零件編號FT231XQ-R
BrandFTDI Chip
HK$17.775
/個 (每包:2個)
單位
- - - - - - - - - - - - - -
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
全新
RS庫存編號 190-1465
製造零件編號MAX14830ETM+
HK$133.37
單位
4 RS485 - - 24MBd - Surface Mount TQFN 48 2.35 3.6 V 7.1 x 7.1 x 0.75mm 7.1mm 7.1mm 0.75mm
RS庫存編號 686-5932
製造零件編號ST16C550IQ48-F
BrandEXAR
HK$49.98
單位
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS庫存編號 170-4516
製造零件編號XR20M1172IG28-F
BrandEXAR
HK$40.415
毎管:50 個
單位
2 IrDA, RS232, RS422, RS485 64B 64B 16Mbit/s Yes Surface Mount TSSOP 28 1.6 → 3.6 V 9.8 x 4.5 x 1.05mm 9.8mm 4.5mm 1.05mm
RS庫存編號 170-9073
製造零件編號FT232RQ-REEL
BrandFTDI Chip
HK$19.77
個 (在毎卷:6000)
單位
1 RS232, RS422, RS485 UART 256B 128B 3MBd - Surface Mount QFN 32 5 V 5 x 5mm 5mm 5mm -
RS庫存編號 686-6064
製造零件編號XR82C684CJ-F
BrandEXAR
HK$155.13
單位
4 UART - - 1Mbit/s - Surface Mount PLCC 68 5 V 24.33 x 24.33 x 3.68mm 24.33mm 24.33mm 3.68mm
RS庫存編號 778-0898
製造零件編號XR16V554DIV-F
BrandEXAR
HK$96.02
單位
4 - 16B 16B 4Mbit/s - Surface Mount LQFP 64 2.25 → 3.6 V 10.1 x 10.1 x 1.45mm 10.1mm 10.1mm 1.45mm
RS庫存編號 769-5605
製造零件編號XR20M1170IG16-F
BrandEXAR
HK$29.605
/個 (每包:2個)
單位
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庫存編號 686-5888
製造零件編號ST16C2550CQ48-F
BrandEXAR
HK$65.58
單位
2 RS232, RS485 16B 16B 4Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS庫存編號 797-4753
製造零件編號SC16C752BIB48,151
BrandNXP
HK$47.07
單位
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庫存編號 170-4466
製造零件編號XR21V1412IL32-F
BrandEXAR
HK$33.89
Each (In a Tray of 490)
單位
- - - - - - Surface Mount QFN 32 - 5 x 5 x 0.88mm 5mm 5mm 0.88mm
RS庫存編號 913-4216
製造零件編號ST16C2550CJ44-F
BrandEXAR
HK$51.989
毎管:27 個
單位
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 16.66mm 16.66mm 3.68mm
RS庫存編號 686-6067
製造零件編號XR88C681CJ-F
BrandEXAR
HK$71.45
單位
2 - - - 1Mbit/s - Surface Mount PLCC 44 5 V 16.66 x 16.66 x 3.68mm 16.66mm 16.66mm 3.68mm
RS庫存編號 686-6001
製造零件編號XR16L788IQ-F
BrandEXAR
HK$239.37
單位
8 IrDA 64B 64B 6.25Mbit/s Yes Surface Mount PQFP 100 2.97 → 5.5 V 20.1 x 14.1 x 3.05mm 20.1mm 14.1mm 3.05mm
RS庫存編號 913-4244
製造零件編號XR16L788CQ-F
BrandEXAR
HK$246.96
Each (In a Tray of 66)
單位
8 IrDA 64B 64B 6.25Mbit/s Yes Surface Mount PQFP 100 2.97 → 5.5 V 20.1 x 14.1 x 3.05mm 20.1mm 14.1mm 3.05mm
RS庫存編號 686-5926
製造零件編號ST16C550CQ48-F
BrandEXAR
HK$43.02
單位
1 - 16B 16B 1.5Mbit/s Yes Surface Mount TQFP 48 2.97 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm
RS庫存編號 124-2421
製造零件編號SC16IS752IPW,112
BrandNXP
HK$28.67
毎管:51 個
單位
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庫存編號 170-4452
製造零件編號ST16C650ACQ48-F
BrandEXAR
HK$57.271
Each (In a Tray of 250)
單位
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