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參數(shù)資料
| 型號： | DS9490R |
| 英文描述： | USB to 1-Wire/iButton Adapter |
| 中文描述： | USB至1-Wire/iButton適配器 |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 216K |
| 代理商： | DS9490R |
DS9490
2 of 5
Figure 1. DS9490R
* Color subject to change
Figure 2. DS9490B
*
* Color subject to change
*Note:
To eject an iButton, insert a straightened paper clip into the side access hole of the DS9490B.
Push the paper clip in the direction of the iButton. A different iButton can then be inserted. The
data contact faces down and away from the embossed ‘i’. Before inserting the paper clip
disconnect the DS9490B from the USB bus.
Each USB bridge contains a unique built-in identification chip. The identification chip is a custom
DS2401 that is a 64-bit ID number (see Figure 3).
Figure 3. DS2401 ID CHIP 64-BIT LASERED ROM
MSB
LSB
8-BIT
CRC CODE
12-BIT
FIXED
(000H)
36-BIT SERIAL
NUMBER
8-BIT FAMILY
CODE (81H)
MSB
LSB
MSB
LSB MSB
LSB MSB
LSB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS9490R# | 功能描述:界面模塊 USB:1-Wire/iButton Adapter RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度: |
| DS9490R_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:USB to 1-Wire/iButton Adapters High-Speed 12Mbps Universal Serial Bus (USB) Interface |
| DS9490R-E00 | 功能描述:界面模塊 RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度: |
| DS9502 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:ESD Protection Diode |
| DS9502P | 功能描述:TVS二極管陣列 RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
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