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XR21B1411 PDF预览

XR21B1411

更新时间: 2024-11-01 07:56:15
品牌 Logo 应用领域
艾科嘉 - EXAR 驱动
页数 文件大小 规格书
2页 737K
描述
Single Channel USB UART with Industry`s Smallest Package and Optimized Software Drivers

XR21B1411 数据手册

 浏览型号XR21B1411的Datasheet PDF文件第2页 
Enhanced 1-CH Full-Speed USB UART  
XR21B1411  
Single Channel USB UART with Industry’s Smallest Package  
and Optimized Software Drivers  
The XR21B1411 (B1411) is an enhanced Universal Asynchronous Receiver and  
Transmitter (UART) with a USB interface. The USB interface is fully compliant to  
FꢀATURꢀS  
±15kV HBM ESD on  
USBD+/USBD-  
Full Speed USB 2.0 specification that supports 12 Mbps USB data transfer rate.  
The USB interface also supports USB suspend, resume and remote wakeup  
operations.  
USB 2.0 Compliant Interface  
Supports 12 Mbps USB  
full-speed data rate  
The B1411 operates from an internal clock that is programmable to 6, 12, 24 or  
48 MHz. Therefore, no external crystal / oscillator is required as in previous  
generation UARTs. With the fractional baud rate generator, any baud rate up to  
12 Mbps can be accurately generated using the internal clock.  
Supports USB suspend, resume  
and remote wakeup operations  
Enhanced UART Features  
Data rates up to 12 Mbps  
Fractional Baud Rate Generator  
128 byte TX FIFO  
The large 128-byte TX FIFO and 384-byte RX FIFO of the B1411 help to optimize  
the overall data throughput for various applications. The Automatic Transceiver  
Direction control feature simplifies both the hardware and software for half-  
duplex RS-485 applications. If required, the multidrop (9-bit) mode with  
automatic half-duplex transceiver control feature further simplifies typical  
multidrop RS-485 applications.  
384 byte RX FIFO  
7, 8 or 9 data bits  
1 or 2 stop bits  
Odd, even, mark, space  
or no parity  
The Vendor ID, Product ID, bus-powered mode, self-powered mode, remote  
wakeup support or maximum power consumption values, as well as default  
baud rate settings can be programmed using the on-board OTP through the  
USBD+ / USBD- pins.  
Automatic Hardware (RTS/CTS  
or DTR/DSR) Flow Control  
Automatic Software (Xon/Xoff)  
Flow Control  
Multidrop mode  
The B1411 operates from a single 5V power supply and is available in a 16-pin  
QFN package.  
Auto Transceiver Control  
Half-Duplex mode  
Software drivers for Windows 7, 2000, XP, Vista, and CE, as well as Linux and  
Mac are supported for the XR21B1411.  
Selectable GPIO or Modem I/O  
Internal 48 MHz clock with  
clock divisors programmable  
down to 6 MHz  
Single 5V power supply  
16-pin QFN package  
Virtual COM Port drivers  
Windows 7, 2000, XP and  
Vista  
Windows CE 4.2, 5.0, 6.0  
Linux  
Mac  
www.exar.com  

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