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參數(shù)資料
| 型號： | DS2890X-000 |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/27頁 |
| 文件大小： | 0K |
| 描述： | IC POT DIGITAL 1-WIRE 100K CSP |
| 標準包裝： | 10,000 |
| 接片： | 256 |
| 電阻（歐姆）： | 100k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標準值 800 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 1 線 串行 |
| 電源電壓： | 2.8 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-XBGA，F(xiàn)CBGA |
| 供應(yīng)商設(shè)備封裝： | 6-覆晶（2.82x2.54） |
| 包裝： | 帶卷 (TR) |
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DS2890
12 of 27
READ CONTROL REGISTER [AAH]
The Read Control Register command is used to obtain both the Control Register and potentiometer
Feature Register. Following the Read Control Register command byte, the bus master reads 16 bits to
obtain first the Feature Register byte and then the Control Register byte. The DS2890 will respond with
0’s to additional reads after the 8 bit of the Control Register byte. The Read Control Register command
is terminated with a Reset pulse.
WRITE CONTROL REGISTER [55H]
The Write Control Register command is used to manipulate DS2890 state bits located in the Control
Register. This command is used to set the potentiometer wiper address and charge pump state. The bus
master follows the Write Control Register command byte with an 8-bit register value. Following the 8th
bit of the register byte, the bus master reads back the 8-bit control value from the DS2890 to confirm that
the device received the correct value (Note that if an invalid register value was received by the DS2890,
the bus master will read all 1’s (FFh) during the read back sequence.). If a value other than FFh is read,
the bus master determines if the DS2890 received the correct value. If an incorrect value is read back, the
bus master must issue a Reset pulse and repeat the sequence. If the value read back is correct, the bus
master then sends the 8-bit release code (96h). If the DS2890 accurately receives the release code, the
Control Register is updated and the device will respond with 0’s to additional reads by the bus master. If
an invalid release code is received, no change is made to the Control Register and the device will respond
with 1’s to additional reads by the bus master. The Write Control Register command is terminated with a
Reset pulse.
INCREMENT [C3H]
The Increment command is used for a one step position increase of the currently addressed potentiometer
wiper. Although the DS2890 is a single element potentiometer, wiper addressing still applies and the
Control Register wiper number used for addressing must be set accordingly. The bus master follows the
Increment command byte with an 8-bit read to which the DS2890 will respond with the new 8-bit wiper
position set point. No position change is made if the DS2890 wiper is at the maximum position (FFh)
and an Increment command is received. One difference between the Increment/Decrement commands
and other potentiometer functions is that upon completion of either of these commands, 1-Wire command
processing remains at the potentiometer function level. As shown in Figure 18, additional potentiometer
commands may be sent without going through the ROM function flow.
DECREMENT [99H]
The Decrement command is used for a one step position decrease of the currently addressed
potentiometer wiper. Although the DS2890 is a single element potentiometer, wiper addressing still
applies and the Control Register wiper number used for addressing must be set accordingly. The bus
master follows the Decrement command byte with an 8-bit read to which the DS2890 will respond with
the new 8-bit wiper position set point.
No position change is made if the DS2890 wiper is at the
minimum position (00h) and a Decrement command is received.
One difference between the
Increment/Decrement commands and other potentiometer functions is that upon completion of either of
these commands, 1-Wire command processing remains at the potentiometer function level. As shown in
Figure 18, additional potentiometer commands may be sent without going through the ROM function
flow.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS28CM00 | 制造商:MAXIM 制造商全稱: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:序列號注冊 I2C/SMBus Silicon Serial Number RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度: 電源電壓-最大: 電源電壓-最小: 最大工作溫度: 最小工作溫度: 安裝風格: 封裝 / 箱體: |
| 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 制造商全稱:Maxim Integrated Products 功能描述:1Kbit IC/SMBus EEPROM with SHA-1 Engine |
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