- 您现在的位置：买卖IC网 > PDF目录1976 > XR21V1412IL32TR-F (Exar Corporation)IC USB UART FIFO FULL SPD 32QFN PDF资料下载
参数资料
| 型号： | XR21V1412IL32TR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 19/32页 |
| 文件大小： | 0K |
| 描述： | IC USB UART FIFO FULL SPD 32QFN |
| 产品培训模块： | XR21V141x Full-Speed USB UART Family |
| 标准包装： | 3,000 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 128 字节，384 字节 |
| 规程： | USB 2.0 |
| 电源电压： | 2.97 V ~ 3.63 V |
| 带自动流量控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
| 配用： | 1016-1301-ND - EVAL BOARD FOR XR21V1412IL |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页当前第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
XR21V1412
26
2-CH FULL-SPEED USB UART
REV. 1.3.0
CUSTOM[1]: Max Packet Size
Logic 0 = bMaxPacketSize = 64 bytes
Logic 1 = bMaxPacketSize = 63 bytes (this bit is automatically set to ’1’ if the XR21V1412 receives a
CDC_ACM USB command)
CUSTOM[7:2]: Reserved
These bits are reserved and should remain ’0’.
3.4.2
LOW_LATENCY Register Description - Chan A / B (Read/Write)
This register is automatically set to logic ’1’ for baud rates below 46921 bps, and can be manually set for baud
rates of 46921 bps and higher. This register enables the Low latency feature of the UART. Write to this
register following any desired baud rate setting change.
LOW_LATENCY[0]: Enable Low Latency mode
Logic 0 = Receive data is not forwarded from the Rx FIFO until bMaxPacketSize (64 bytes) or timeout (3
characters) has occurred.
Logic 1 = All data in the RX FIFO is provided to the USB host at the next BULK IN request irrespective of the
number of bytes in the FIFO.
LOW_LATENCY[7:1]: Reserved
These bits are reserved and should remain ’0’.
3.4.3
CUSTOM_INT_PACKET - Chan A / B (Read/Write)
This register is used to enable / disable GPIO status in the high data byte of the custom interrupt packet. See
Table 16, “Interrupt Packet Format,” on page 27 and Table 18, “Data Field of Customized Interrupt
Packet - Exar Vendor Specific,” on page 28.
CUSTOM_INT_PACKET[0]: GPIO1
Logic 0 = Disable GPIO1 status in custom interrupt packet.
Logic 1 = Enable GPIO1 status in custom interrupt packet.
CUSTOM_INT_PACKET[1]: GPIO2
Logic 0 = Disable GPIO2 status in custom interrupt packet.
Logic 1 = Enable GPIO2 status in custom interrupt packet.
CUSTOM_INT_PACKET[2]: Reserved
This bit is reserved and should remain ’0’.
CUSTOM_INT_PACKET[3]: GPIO0
Logic 0 = Disable GPIO0 status in custom interrupt packet.
Logic 1 = Enable GPIO0 status in custom interrupt packet.
CUSTOM_INT_PACKET[4]: GPIO3
Logic 0 = Disable GPIO3 status in custom interrupt packet.
Logic 1 = Enable GPIO3 status in custom interrupt packet.
CUSTOM_INT_PACKET[5]: GPIO4
Logic 0 = Disable GPIO4 status in custom interrupt packet.
Logic 1 = Enable GPIO4 status in custom interrupt packet.
相关PDF资料 |
PDF描述 |
|---|---|
| XR21V1414IM48-F | IC UART FIFO USB QUAD 48TQFP |
| XR3178EID-F | IC TXRX RS485 DIFF 3V 8NSOIC |
| XR5488EID-F | IC TXRX RS485 PROFIBUS 8NSOIC |
| XR68C681P-F | IC UART CMOS DUAL 40PDIP |
| XR68C92CJ-F | IC UART FIFO DUAL 44PLCC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR21V1414 | 制造商:EXAR 制造商全称:EXAR 功能描述:4-CH FULL-SPEED USB UART |
| XR21V1414_10 | 制造商:EXAR 制造商全称:EXAR 功能描述:4-CH FULL-SPEED USB UART |
| XR21V1414IM-0A-EB | 功能描述:界面开发工具 Eval Board for XR21V1414IM48-F RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR21V1414IM-0B-EB | 功能描述:界面开发工具 For XR21V1414 TQFP48 USB, RS232;No Cables RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR21V1414IM48 | 制造商:EXAR 制造商全称:EXAR 功能描述:4-CH FULL-SPEED USB UART |
发布紧急采购，3分钟左右您将得到回复。