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| 型号： | DS2890P-000+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/27页 |
| 文件大小： | 0K |
| 描述： | IC POT DIGITAL 1-WIRE 100K 6TSOC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 120 |
| 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-LSOJ |
| 供应商设备封装： | 6-TSOC |
| 包装： | 管件 |
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DS2890
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FIGURE 13. 1-WIRE CRC GENERATOR
R
X2
X1
X0
X8
X7
X6
X5
X4
X3
8TH
STAGE
7TH
STAGE
6TH
STAGE
5TH
STAGE
4TH
STAGE
3RD
STAGE
2ND
STAGE
1ST
STAGE
S
INPUT DATA
Polynomial = X8 + X5 + X4 + 1
POTENTIOMETER FUNCTION COMMANDS
Once the bus master has completed a ROM command sequence, one of six DS2890 potentiometer
function commands can be issued. The Potentiometer Function Command flow charts, Figure 18 and
Figure 19, describe the protocols necessary for adjusting or reading the potentiometer wiper position or
controlling the operating state of the DS2890. All potentiometer functions consist of a single command
byte followed by one or more bytes of data or control written/read by the bus master. All data transferred
between the DS2890 and the bus master are communicated least significant bit first.
READ POSITION [F0H]
The Read Position command is used to obtain the wiper setting of the potentiometer currently addressed
by the Control Register. 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. In addition
to wiper position, the Control Register byte will be returned with a Read Position command. This enables
the bus master to easily confirm/determine the currently addressed potentiometer wiper. Following the
Read Position command byte, the bus master reads 16 bits to obtain first the Control Register byte then
the wiper position byte. The DS2890 will respond with 0’s to additional reads after the 8 bit of the
position byte. The Read Position command is terminated with a Reset pulse.
WRITE POSITION [0FH]
The Write Position command is used to set the position 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 Write
Position command byte with an 8-bit wiper position value. Following the 8th bit of the position byte, the
bus master reads back the 8-bit position value from the DS2890 to confirm that the value was received
correctly by the device. 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 wiper position 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 wiper position and the device will respond with 1’s to additional reads by the bus
master. The Write Position command is terminated with a Reset pulse.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2890P-000+ | 功能描述:IC POT DIGITAL 1-WIRE 100K 6TSOC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| DS2890P-000+T&R | 制造商:Maxim Integrated Products 功能描述:IC POT DIGITAL 1-WIRE 100K 6TSOC |
| DS2890P-000+T&R | 功能描述:IC POT DIGITAL 1-WIRE 100K 6TSOC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| DS2890T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer |
| DS2890T-000 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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