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參數(shù)資料
| 型號： | SDM-USB-QS-S_ |
| 廠商： | Linx Technologies Inc |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | MODULE USB LOW SPEED |
| 產(chǎn)品目錄繪圖： | SDM-USB-QS-S Top SDM-USB-QS-S Side |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 系列： | QS |
| 應(yīng)用： | USB，外設(shè) |
| 接口： | 并行/串行 |
| 電源電壓： | 4.35 V ~ 5.25 V |
| 封裝/外殼： | 16-SMD 模塊 |
| 供應(yīng)商設(shè)備封裝： | 模塊 |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
| 其它名稱： | SDM-USB-QS-S SDM-USB-QS-S_-ND SDM-USB-QS1-S |
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11
The UART FIFO controller handles the transfer of data between the RX and
TX buffers and the UART transmit and receive registers.
The UART performs asynchronous 7 / 8 bit parallel-to-serial and serial-to-
parallel conversion of the data on the RS-232 interface. Control signals
supported by the UART include RTS, CTS, DSR, DTR, DCD, and RI. The
UART provides a transmitter-enable control signal (485_TX) to assist with
interfacing to RS-485 transceivers. The UART supports RTS / CTS, DSR /
DTR and X-On / X-Off handshaking options. Handshaking, where required,
is handled in hardware to ensure fast response times. The UART also
supports the RS-232 BREAK setting and detection conditions.
Power Supply Guidelines
The USB module can be powered in two ways: from the USB bus or from
an external source. If necessary, a voltage regulator can be used to supply
a clean 5V as the external source, or the V
CC pin can be connected to the
bus power pin of the USB connector. Using the bus to power the module
is an advantage because the module then uses power from the host
rather than from the peripheral. This is especially helpful if the peripheral
is battery-powered. Figure 13 shows the schematic for a bus-powered
device.
The USB specification has strict allowances for using power from the bus.
A device is allowed to use 100mA before enumeration, 500mA during
normal operation, and 500mA in suspend mode. A descriptor stored in
the EEPROM will tell the host how much current the device will pull from
the bus so that the host can allocate the appropriate power. The modules
come programmed for 100mA, but if the final product will draw more than
this, then the device descriptors will need to be changed as described
below.
USBDP
USBDM
GND
DSR
DATA_IN
DATA_OUT
RTS
CTS
DTR
TX_IND
VCC
SUSP_IND
RX_IND
485_TX
RI
DCD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
USB Type B
Connector
GND
5V
DAT -
DAT+
GND
GS
HD
GS
HD
GND
1
2
3
4
5
6
GND
SDM-USB-QS-S
Figure 13: USB Bus-Powered Schematic
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SDM-USB-QS-S_ | 功能描述:MODULE USB LOW SPEED RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:QS 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| SDMX-10TR | 制造商:BOURNS 制造商全稱:Bourns Electronic Solutions 功能描述:Surface Mount DIP Switch |
| SDMX-10-X | 功能描述:DIP 開關(guān)/ SIP 開關(guān) 10Pos SMT DIP RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| SDMX-10XR | 制造商:BOURNS 制造商全稱:Bourns Electronic Solutions 功能描述:Surface Mount DIP Switch |
| SDMX-12TR | 制造商:BOURNS 制造商全稱:Bourns Electronic Solutions 功能描述:Surface Mount DIP Switch |
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