- 您現在的位置：買賣IC網 > PDF目錄376973 > DS2890T-000 128 x 128 pixel format, LED or EL Backlight available PDF資料下載
參數資料
| 型號： | DS2890T-000 |
| 英文描述： | 128 x 128 pixel format, LED or EL Backlight available |
| 中文描述： | 1 - Wire數字電位器 |
| 文件頁數： | 3/27頁 |
| 文件大?。?/td> | 939K |
| 代理商： | DS2890T-000 |
第1頁第2頁當前第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
DS2890
3 of 27
OPERATION
The DS2890 is a single element digital potentiometer; a block diagram of the device is shown in Figure 1.
The device has a total of 256 linearly spaced tap points including the RL and RH terminals; a total of 255
resistive segments exist between the RL and RH terminals. These tap points are accessible to the WIPER
terminal whose position is controlled via the 1-Wire bus interface. Wiper position and device state are
maintained as long as the 1-Wire bus is active or the V
DD
supply is applied within operating limits.
Otherwise, a power-on reset will occur and the wiper position and operating state will return to power-on
default conditions.
Figure 1.
DS2890 BLOCK DIAGRAM
As shown in the figure the device has five major elements: the 1-Wire Function Controller, the
Potentiometer Controller, the 64-bit ROM, the resistor array, and Parasite Power circuitry. Each of these
elements is discussed in detail throughout the remainder of the data sheet. DS2890 control including
device selection, positioning/reading the potentiometer wiper, and device operating state is performed
over the 1-Wire bus. The hierarchical structure of the 1-Wire protocol as applicable to the DS2890 is
shown in Figure 2. As shown, the control sequence starts with the 1-Wire bus master issuing one of eight
ROM function commands. After a ROM function command is successfully completed potentiometer
functions may be executed. The protocol for ROM and potentiometer functions are described in the
“COMMAND FLOW” section
.
For the 3-pin TO-92 package configuration and operation see the
“TO-92 PACKAGE OPERATION” section.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2890-000 | 1-Wire Digital Potentiometer |
| DS2890 | 1-Wire Digital Potentiometer |
| DS2890T | 1-Wire Digital Potentiometer |
| DS2890X | 1-Wire Digital Potentiometer |
| DS2E-S-DC3V | HIGHLY SENSITIVE 1500 V FCC SURGE WITHSTANDING MINIATURE RELAY |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS2890V | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer |
| DS2890V-000 | 功能描述:數字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS2890X | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer |
| DS2890X-000 | 功能描述:IC POT DIGITAL 1-WIRE 100K CSP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數:1 溫度系數:標準值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型，TSOT-23-6 供應商設備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| DS28CM00 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:IC/SMBus Silicon Serial Number |
發(fā)布緊急采購，3分鐘左右您將得到回復。