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CAT5221WI25

更新时间： 2024-11-19 11:52:27
品牌 Logo 应用领域
安森美 - ONSEMI 转换器数字电位计电阻器光电二极管
页数 文件大小 规格书
16页 226K
描述
Dual Digitally Programmable Potentiometer (DPP™) with 64 Taps and I2C Interface

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CAT5221WI25 技术参数

是否无铅：不含铅生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP, SOP20,.4
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.21Is Samacsys：N
其他特性：NONVOLATILE MEMORY控制接口：2-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：R-PDSO-G20
JESD-609代码：e3长度：12.8 mm
湿度敏感等级：3功能数量：2
位置数：64端子数量：20
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：SOP
封装等效代码：SOP20,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：NOT SPECIFIED
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：6 V最小电阻器端电压：
座面最大高度：2.64 mm子类别：Digital Potentiometers
标称供电电压：5 V表面贴装：YES
标称温度系数：300 ppm/ °C温度等级：INDUSTRIAL
端子面层：Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED标称总电阻：2500 Ω
宽度：7.5 mmBase Number Matches：1

CAT5221WI25 数据手册

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CAT5221  
Dual Digitally Programmable Potentiometer (DPP™) with  
64 Taps and I2C Interface  
FEATURES  
DESCRIPTION  
„ Two linear-taper digitally programmable  
The CAT5221 is two Digitally Programmable  
Potentiometers (DPPs™) integrated with control logic  
and 16 bytes of NVRAM memory. Each DPP consists  
of a series of 63 resistive elements connected  
between two externally accessible end points. The tap  
points between each resistive element are connected  
to the wiper outputs with CMOS switches. A separate  
6-bit control register (WCR) independently controls  
the wiper tap switches for each DPP. Associated with  
each wiper control register are four 6-bit non-volatile  
memory data registers (DR) used for storing up to four  
wiper settings. Writing to the wiper control register or  
any of the non-volatile data registers is via a I2C serial  
bus. On power-up, the contents of the first data  
register (DR0) for each of the four potentiometers is  
automatically loaded into its respective wiper control  
register (WCR).  
potentiometers  
„ 64 resistor taps per potentiometer  
„ End to end resistance 2.5 kΩ, 10 kΩ, 50 kΩ or  
100 kΩ  
„ Potentiometer control and memory access via  
I2C interface  
„ Low wiper resistance, typically 80 Ω  
„ Nonvolatile memory storage for up to four  
wiper settings for each potentiometer  
„ Automatic recall of saved wiper settings at  
power up  
„ 2.5 to 6.0 volt operation  
„ Standby current less than 1µA  
„ 1,000,000 nonvolatile WRITE cycles  
„ 100 year nonvolatile memory data retention  
„ 20-lead SOIC and TSSOP packages  
„ Industrial temperature range  
The CAT5221 can be used as a potentiometer or as a  
two terminal, variable resistor. It is intended for circuit  
level or system level adjustments in a wide variety of  
applications.  
For Ordering Information details, see page 15.  
PIN CONFIGURATION  
FUNCTIONAL DIAGRAM  
SOIC 20 Lead (W)  
TSSOP 20 Lead (Y)  
R
R
H1  
H0  
RW0  
RL0  
1
2
3
4
5
6
7
8
9
20 VCC  
19 NC  
18 NC  
17 NC  
16 A1  
15 A3  
14 SCL  
13 NC  
12 NC  
11 NC  
SCL  
SDA  
WIPER  
CONTROL  
REGISTERS  
2
I C  
INTERFACE  
RH0  
A0  
R
R
W0  
W1  
A2  
CAT  
5221  
RW1  
RL1  
A0  
A1  
A2  
NONVOLATILE  
DATA  
REGISTERS  
CONTROL  
LOGIC  
RH1  
SDA  
A3  
GND 10  
R
R
L1  
L0  
© 2009 SCILLC. All rights reserved.  
Characteristics subject to change without notice  
1
Doc. No. MD-2113 Rev. M  
1234567...16

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