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DS1845B-010 PDF预览

DS1845B-010

更新时间: 2024-02-02 08:10:22
品牌 Logo 应用领域
达拉斯 - DALLAS 转换器电位器存储电阻器
页数 文件大小 规格书
13页 102K
描述
Dual NV Potentiometer and Memory

DS1845B-010 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:BGA
包装说明:BGA, BGA16,4X4,40针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:8 weeks
风险等级:1.22其他特性:NONVOLATILE MEMORY; OTHER RESISTOR VALUE IS 10000 OHM; IT CAN ALSO OPERATE FROM A 5V SUPPLY
标称带宽:1 kHz控制接口:2-WIRE SERIAL
转换器类型:DIGITAL POTENTIOMETERJESD-30 代码:S-PBGA-B16
JESD-609代码:e3长度:4 mm
湿度敏感等级:3功能数量:2
位置数:256端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:BGA
封装等效代码:BGA16,4X4,40封装形状:SQUARE
封装形式:GRID ARRAY峰值回流温度(摄氏度):260
电源:3/5 V认证状态:Not Qualified
电阻定律:LINEAR最大电阻容差:20%
最大电阻器端电压:3.5 V最小电阻器端电压:-0.5 V
座面最大高度:1.5 mm子类别:Digital Potentiometers
标称供电电压:3 V表面贴装:YES
标称温度系数:30 ppm/ °C温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:BALL
端子节距:1 mm端子位置:BOTTOM
处于峰值回流温度下的最长时间:30标称总电阻:10000 Ω
宽度:4 mmBase Number Matches:1

DS1845B-010 数据手册

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DS1845  
Dual NV Potentiometer and Memory  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Two linear taper potentiometers  
DS1845-010 one 10k, 100 position &  
one 10k, 256 position  
SDA  
SCL  
A0  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
Vcc  
H0  
W1  
H1  
L1  
DS1845-050 one 10k, 100 position &  
one 50k, 256 postition  
DS1845-100 one 10k, 100 position &  
one 100k, 256 position  
A1  
A2  
WP  
GND  
W0  
L0  
256 bytes of EEPROM memory  
Access to data and potentiometer control via  
a 2-wire interface  
External Write Enable pin to protect data and  
potentiometer settings  
8
14-Pin TSSOP (173 mil)  
14-Pin Flip Chip (100 x 100 mils)  
16-BALL STPBGA (4 x 4 mm)  
See Mech. Drawing Section  
Nonvolatile wiper storage in 2 bytes of  
address space  
Operates from 3V or 5V supplies  
Packaging: Flip Chip Package, 16-ball  
STPBGA, 14-pin TSSOP  
Industrial operating temperature: -40ºC to  
+85ºC  
PIN DESCRIPTION  
VCC  
- 3V or 5V Power Supply Input  
GND  
SDA  
- Ground  
- 2-wire Serial Data  
Input/Output  
Programming temperature: 0ºC to +70ºC  
SCL  
WP  
- 2-wire Serial Clock Input  
- Write Protect Input  
A0, A1, A2 - Address Inputs  
H0, H1  
L 0, L1  
W0, W1  
- High-End of Potentiometer  
- Low-End of Potentiometer  
- Wiper Terminal of  
Potentiometer  
DESCRIPTION  
The DS1845 Dual NV Potentiometer and Memory consists of one=100-position linear taper  
potentiometer, one=256-position linear taper potentiometer, 256 bytes of EEPROM memory, and a 2-wire  
interface. The device provides an ideal method for setting bias voltages and currents in control  
applications using a minimum of circuitry. The EEPROM memory allows a user to store configuration  
or calibration data for a specific system or device as well as provide control of the potentiometer wiper  
settings. Any type of user information may reside in the first 248 bytes of this memory. The next two  
addresses of EEPROM memory are for potentiometer settings and the remaining 6 bytes of memory are  
reserved. These reserved and potentiometer registers should not be used for data storage. Access to this  
EEPROM is via an industry standard 2-wire bus. The interface I/O pins consist of SDA and SCL. The  
wiper position of the DS1845, as well as EEPROM data, can be hardware write-protected using the Write  
Protect (WP) input pin.  
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