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CAT5259WI-00 PDF预览

CAT5259WI-00

更新时间： 2024-11-26 06:46:15
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 258K
描述
Quad Digitally Programmable Potentiometers with 256 Taps and I²C Interface

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CAT5259WI-00 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：24
Reach Compliance Code：unknown风险等级：5.2
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-G24
JESD-609代码：e3长度：15.4 mm
功能数量：4位置数：256
端子数量：24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封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
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：5 V
最小电阻器端电压：座面最大高度：2.65 mm
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：MATTE TIN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：100000 Ω
宽度：7.5 mmBase Number Matches：1

CAT5259WI-00 数据手册

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CAT5259  
Quad Digitally Programmable Potentiometers  
(DPP™) with 256 Taps and I²C Interface  
FEATURES  
DESCRIPTION  
„ Four linear taper digitally programmable  
The CAT5259 is four digitally programmable poten–  
tiometers (DPPs™) integrated with control logic and  
16 bytes of NVRAM memory. Each DPP consists of a  
series of 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 8-bit  
control register (WCR) independently controls the  
wiper tap switches for each DPP. Associated with  
each wiper control register are four 8-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 registers.  
potentiometers  
„ 256 resistor taps per potentiometer  
„ End to end resistance 50kΩ or 100kΩ  
„ Potentiometer control and memory access via  
I²C interface  
„ Low wiper resistance, typically 100Ω  
„ 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  
„ 24-lead SOIC and 24-lead TSSOP packages  
„ Industrial temperature range  
The CAT5259 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. It is available in the 0ºC to 70ºC  
commercial and -40ºC to 85ºC industrial operating  
temperature ranges and offered in a 24-lead SOIC  
and TSSOP package.  
For Ordering Information details, see page 15.  
FUNCTIONAL DIAGRAM  
PIN CONFIGURATION  
SOIC (W)  
TSSOP (Y)  
R
R
R
H2  
R
H3  
H0  
H1  
NC  
A0  
1
2
3
4
5
6
7
8
9
24 A3  
SCL  
SDA  
I²C BUS  
INTERFACE  
WIPER CONTROL  
REGISTERS  
ꢀ
R
W0  
R
W1  
R
W2  
R
W3  
23 SCL  
22 RL2  
21 RH2  
20 RW2  
19 NC  
18 GND  
17 RW1  
16 RH1  
15 RL1  
14 A1  
RW3  
RH3  
RL3  
NC  
VCC  
RLO  
RHO  
WP  
A
A
A
A
0
1
2
3
NONVOLATILE  
DATA  
REGISTERS  
CONTROL LOGIC  
R
R
R
L2  
R
L3  
L0  
L1  
RWO 10  
A2 11  
12  
13 SDA  
© 2008 SCILLC. All rights reserved.  
Characteristics subject to change without notice  
1
Doc. No. MD-2000 Rev. I  
1234567...16

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