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参数资料
| 型号： | DS2490S |
| 英文描述： | USB to 1-Wire Bridge Chip |
| 中文描述： | USB与1 - Wire桥接芯片 |
| 文件页数： | 16/50页 |
| 文件大小： | 530K |
| 代理商： | DS2490S |
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DS2490
16 of 50
033199
Flexible Speed Write-1 Low Time Codes
Table 8
Code
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8..0xF
Write-1 Low Time
8
μ
s
9
μ
s
10
μ
s
11
μ
s
12
μ
s
13
μ
s
14
μ
s
15
μ
s
reserved
DSOW0 RECOVERY TIME -
This command is used to select the Data Sample Offset / Write-0
recovery time (DSO/W0R) for 1-Wire bus Flexible Speed operation; eight DSO/W0R times are possible.
The parameter codes to select the desired or required recovery time are as listed in Table 9. The numbers
in the table represent exact values. The DSO/W0R time for Regular speed is 3
μ
s, for Overdrive speed
the Data Sample Offset is 1
μ
s and the Write-0 Recovery Time is 3
μ
s. The DS2490 decodes the 3 LSBs
of the DSO/W0R code. Sending a code other than the defined values in Table 9 will result in undefined
behavior. The DS2490 DSO/W0R power-up default value for Flexible speed is 7
μ
s.
Flexible Speed DSO/ W0R Time Codes
Table 9
Code
DSO/W0R Time
0x0
3
μ
s
0x1
4
μ
s
0x2
5
μ
s
0x3
6
μ
s
0x4
7
μ
s
0x5
8
μ
s
0x6
9
μ
s
0x7
10
μ
s
0x8..0xF
reserved
Power-on Default Mode Values
Table 10 summarizes the power-up default values for the various DS2490 mode registers. Note that the
power-up default communication speed is regular and several of the values listed in Table 10 are specific
to Flexible speed operation. To change a value the appropriate Mode or Communication command must
be sent to the device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2490S+ | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Rail/Tube 制造商:Maxim Integrated Products 功能描述:USB 1-W BRIDGE CHIP 24-SO LF 制造商:Maxim Integrated Products 功能描述:Bulk |
| DS2490S+T&R | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Tape and Reel |
| DS2490S+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:USB to 1-Wire Bridge Chip |
| DS2490X | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB to 1-Wire Bridge Chip(468.41 k) |
| DS2490X/T&R | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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