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参数资料
| 型号： | DS2890X-000 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/27页 |
| 文件大小： | 0K |
| 描述： | IC POT DIGITAL 1-WIRE 100K CSP |
| 标准包装： | 10,000 |
| 接片： | 256 |
| 电阻（欧姆）： | 100k |
| 电路数： | 1 |
| 温度系数： | 标准值 800 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 1 线 串行 |
| 电源电压： | 2.8 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-XBGA，FCBGA |
| 供应商设备封装： | 6-覆晶（2.82x2.54） |
| 包装： | 带卷 (TR) |
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DS2890
16 of 27
RESUME COMMAND [A5H]
In a typical application the DS2890 may be accessed several times to complete a control adjustment. In a
multi-drop environment this means that the 64-bit ROM sequence of a Match ROM command has to be
repeated for every access. To maximize the data throughput in a multi-drop environment the Resume
Command function was implemented. As shown in Figure 21, this function checks the status of the RC
flag and, if it is set, directly transfers control to the potentiometer functions, similar to a Skip ROM
command. The only way to set the RC flag is through successfully executing the Match ROM, Search
ROM, Conditional Search ROM, or Overdrive Match ROM command. Once the RC flag is set, the
device can repeatedly be accessed through the Resume Command function. Accessing another device on
the bus will clear the RC flag, preventing two or more devices from simultaneously responding to the
Resume Command function.
POTENTIOMETER FUNCTION EXAMPLE
At regular speed with an auxiliary supply (VDD within range): turn on the charge pump, set the wiper
position to mid-point, increment the wiper twice, and decrement the wiper once.
MASTER MODE
DATA (LSB FIRST)
COMMENTS
TX
Reset
Reset Pulse (480 - 960
μs)
RX
Presence
Presence Pulse
TX
CCh
Issue Skip ROM Command
TX
55h
Issue Write Control Register Command
TX
4Ch
Issue Control Register value for WN=0, CPC=1
RX
<data byte>
Read back Control Register value (4Ch) and verify
TX
96h
Issue Release Code to update Control Register
RX
<data bits>
If 0’s are read, update was successful; if 1’s are read,
the update failed
TX
Reset
Reset Pulse (480 - 960
μs)
RX
Presence
Presence Pulse
TX
CCh
Issue Skip ROM Command
TX
0Fh
Issue Write Position Command
TX
7Fh
Write Wiper Position value
RX
<data byte>
Read back Wiper Position byte and verify
TX
96h
Issue Release Code to update Wiper Position
RX
<data bits>
If 0’s are read, update was successful; if 1’s are read,
the update failed
TX
Reset
Reset Pulse
RX
Presence
Presence Pulse
TX
CCh
Issue Skip ROM Command
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS28CM00 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:IC/SMBus Silicon Serial Number |
| DS28CM00EVKIT | 制造商:Maxim Integrated Products 功能描述:DS28CM00 EV-BOARD W/ MAXQ BOARD - Rail/Tube |
| DS28CM00R-A00+T | 功能描述:序列号注册 I2C/SMBus Silicon Serial Number RoHS:否 制造商:Maxim Integrated 数据总线宽度: 电源电压-最大: 电源电压-最小: 最大工作温度: 最小工作温度: 安装风格: 封装 / 箱体: |
| DS28CM00R-A00+U | 制造商:Maxim Integrated Products 功能描述:SMBUS SILICON SERIAL NUMBER 制造商:Maxim Integrated Products 功能描述:SMBUS INTRFC 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:SILICON SERIAL NUMBER, 5-SOT23 制造商:Maxim Integrated Products 功能描述:SILICON SERIAL NUMBER, 5-SOT23, IC Function:Silicon Serial Number IC, Brief Feat |
| DS28CN01 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1Kbit IC/SMBus EEPROM with SHA-1 Engine |
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