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CAT5261WI-00 PDF预览

CAT5261WI-00

更新时间： 2024-01-11 09:44:38
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
15页 228K
描述
Dual Digitally Programmable Potentiometers with 256 Taps and SPI Interface

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中文翻译

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CAT5261WI-00 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：SOIC
包装说明：SOP,针数：24
Reach Compliance Code：unknown风险等级：5.22
控制接口：3-WIRE SERIAL转换器类型：DIGITAL POTENTIOMETER
JESD-30 代码：R-PDSO-G24JESD-609代码：e3
长度：15.4 mm湿度敏感等级：1
功能数量：2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：COMMERCIAL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：2.65 mm
标称供电电压：3 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：40标称总电阻：100000 Ω
宽度：7.5 mmBase Number Matches：1

CAT5261WI-00 数据手册

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CAT5261  
Dual Digitally Programmable Potentiometers  
(DPP™) with 256 Taps and SPI Interface  
FEATURES  
DESCRIPTION  
„ Two linear-taper digitally programmable  
The CAT5261 is two Digitally Programmable  
Potentiometers (DPPs™) integrated with control logic  
and 8 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 SPI serial bus. On power-  
up, the contents of the first data register (DR0) for each  
of the potentiometers is automatically loaded into its  
respective wiper control register.  
potentiometers  
„ 256 resistor taps per potentiometer  
„ End to end resistance 50kΩ or 100kΩ  
„ Potentiometer control and memory access via  
SPI interface  
„ Low wiper resistance, typically 100  
„ 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  
„ Industrial temperature range  
The CAT5261 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 -40°C to 85°C  
industrial operating temperature range and offered in  
a 24-lead SOIC and TSSOP package.  
„ Industrial temperature range  
For Ordering Information details, see page 14.  
FUNCTIONAL DIAGRAM  
PIN CONFIGURATION  
SOIC/TSSOP (W, Y)  
¯¯¯¯¯  
R
H0  
R
H1  
CS  
SCK  
SI  
SO  
A0  
1
2
3
4
5
6
7
8
24  
HOLD  
WIPER  
CONTROL  
REGISTERS  
SPI BUS  
INTERFACE  
23 SCK  
22 NC  
21 NC  
20 NC  
19 NC  
18 GND  
17 RW1  
R
R
W0  
SO  
NC  
NC  
NC  
NC  
VCC  
RL0  
W1  
CAT  
5261  
WP  
A0  
A1  
NONVOLATILE  
DATA  
REGISTERS  
CONTROL  
LOGIC  
HOLD  
R
L0  
R
L1  
RH0  
9
16 RH1  
RW0 10  
15 RL1  
14 A1  
13 SI  
¯¯¯  
CS  
11  
12  
¯¯¯  
WP  
© 2008 SCILLC. All rights reserved.  
Characteristics subject to change without notice  
1
Doc. No. MD-2122 Rev. F  
1234567...15

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