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參數(shù)資料
| 型號： | DS1844 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Quad Digital Potentiometer(四路數(shù)字電位器) |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 95K |
| 代理商： | DS1844 |
DS1844
042498 5/12
command. Again, the flow of the read operation is pres-
ented in Figure 6.
Writing the DS1844
A data flow diagram for writing the DS1844 is shown in
Figure 7. The DS1844 has one write command that is
used to change the position(s) of the wiper. The 2–wire
serial interface write structure is similar to that of the
5–wire serial write. However, there are differences.
All the write operations begin with a START condition.
Following the START condition, the master device will
issue the command/control byte. The read/write bit of
the command/control byte will be set to ‘0’ for writing the
DS1844. Once the command/control byte has been
issued and the master receives the acknowledgment
from the DS1844, potentiometer wiper data is trans-
mitted to the DS1844 by the master device.
As in the case of the 5–wire serial protocol, a data byte
for the DS1844 will contain potentiometer select data
and wiper position value The six least significant bits of
data specify the wiper position value while the two most
significant bits specify the potentiometer to be loaded.
When the DS1844 has received the data byte, it will
respond with an ACKNOWLEDGE. At this point, the
new wiper value for the potentiometer selected will be
updated in the DS1844. The master device, after the
receipt of the ACKNOWLEDGE, can continue to trans-
mit additional data bytes or if the transaction is complete
respond with the STOP condition. Additionally, the
DS1844 does not require a specific order for writing a
particular potentiometer wipers data. The 2–wire serial
timing diagram is presented in Figure 8.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1844_05 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad Digital Potentiometer |
| DS1844-010 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1844-010+ | 功能描述:數(shù)字電位計 IC Quad RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1844-050 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1844-050+ | 功能描述:數(shù)字電位計 IC Quad RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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