REV. 1.3.0 NOTE: Pin type: I=Input," />
參數資料
型號: XR21V1414IM-0A-EB
廠商: Exar Corporation
文件頁數: 33/34頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XR21V1414IM
產品培訓模塊: UART Product Overview
XR21V141x Full-Speed USB UART Family
標準包裝: 1
主要目的: 接口,USB 2.0 至 UART
嵌入式:
已用 IC / 零件: XR21V1414IM
已供物品:
相關產品: 1016-1304-ND - IC UART FIFO USB QUAD 48TQFP
其它名稱: 1016-1303
XR21V1414
8
4-CH FULL-SPEED USB UART
REV. 1.3.0
NOTE: Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain.
Miscellaneous Signals
LOWPOWER
2
O
Low power status output. The LOWPOWER pin will be asserted whenever
it is not safe to draw the amount of current from VBUS power requested in
the Device Max Power field of the Configuration Descriptor. The LOW-
POWER pin will behave differently for a low power device and a high power
device.
Low-power device (<= 1 unit load or 100 mA i.e. bMaxPower <= 0x32):
LOWPOWER pin is asserted when the USB UART is in
suspend mode.
High-power deivce (bMaxPower > 0x32): LOWPOWER pin is
asserted when the USB UART is in suspend mode or when it is not yet
configured.
The LOWPOWER pin will be de-asserted whenever it is safe to draw the
amount of current requested in the Device Maximum Power field.
This pin is sampled momentarily at power-up or at any USB bus reset to
configure the polarity of the LOWPOWER output during suspend mode. An
external (10K) pull-up resistor will cause the LOWPOWER pin to be
asserted HIGH during suspend mode. An external (3.3K) pull-down resistor
will cause the LOWPOWER pin to be asserted LOW during suspend mode.
Power / Ground Signals
VCC
5, 18, 33,
44, 45
Pwr
+3.3V power supply.
GND
1, 4, 19,
32, 40, 41
Pwr
Power supply common, ground.
Pin Description
NAME
48-QFN
PIN #
TYPE
DESCRIPTION
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相關代理商/技術參數
參數描述
XR21V1414IM-0B-EB 功能描述:界面開發(fā)工具 For XR21V1414 TQFP48 USB, RS232;No Cables RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR21V1414IM48 制造商:EXAR 制造商全稱:EXAR 功能描述:4-CH FULL-SPEED USB UART
XR21V1414IM48-F 功能描述:USB 接口集成電路 4-Ch 12Mbps 48MHz Internal clock; UART RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
XR21V1414IM48-F 制造商:Exar Corporation 功能描述:IC QUAD UART 12MBPS 3.63V 48-TQFP
XR21V1414IM48TR-F 制造商:Exar Corporation 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR21V1414 Series 12 Mbps 3.63 V Quad Channel USB UART SMT - TQFP-48 制造商:Exar Corporation 功能描述:XR21V1414IM48TR-F 制造商:EXAR 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R