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CAT5251YI-50 PDF预览

CAT5251YI-50

更新时间: 2024-11-07 03:55:43
品牌 Logo 应用领域
CATALYST /
页数 文件大小 规格书
15页 280K
描述
Quad Digitally Programmable Potentiometer (DPP⑩) with 256 Taps and SPI Interface

CAT5251YI-50 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:TSSOP包装说明:TSSOP, TSSOP24,.25
针数:24Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.29其他特性:NONVOLATILE MEMORY
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:7.8 mm湿度敏感等级:1
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:TSSOP封装等效代码:TSSOP24,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
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:5 V
最小电阻器端电压:座面最大高度:1.1 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:MATTE TIN
端子形式:GULL WING端子节距:0.65 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:50000 Ω宽度:4.4 mm

CAT5251YI-50 数据手册

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CAT5251  
Quad Digitally Programmable Potentiometer (DPP™) with  
256 Taps and SPI Interface  
FEATURES  
DESCRIPTION  
„ Four linear-taper digitally programmable  
The CAT5251 is four Digitally Programmable  
Potentiometers (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 SPI 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.  
potentiometers  
„ 254 resistor taps per potentiometer  
„ End to end resistance 50kor 100kΩ  
„ Potentiometer control and memory access via  
SPI 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  
„ SOIC 24-lead and TSSOP 24-lead  
„ Industrial temperature range  
The CAT5251 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.  
For Ordering Information details, see page 14.  
PIN CONFIGURATION  
FUNCTIONAL DIAGRAM  
SOIC 24-Lead (W)  
TSSOP 24-Lead (Y)  
¯¯¯¯¯  
HOLD  
SO  
A0  
1
2
3
4
5
6
7
8
9
24  
R
H0  
R
R
H2  
R
H3  
H1  
23 SCK  
22 RL2  
21 RH2  
20 RW2  
19 NC  
18 GND  
17 RW1  
16 RH1  
15 RL1  
14 A1  
CS  
SCK  
SI  
WIPER  
CONTROL  
REGISTERS  
RW3  
RH3  
RL3  
NC  
VCC  
RLO  
RHO  
SPI BUS  
INTERFACE  
R
W0  
SO  
R
W1  
R
W2  
R
W3  
CAT  
5251  
WP  
A0  
A1  
NONVOLATILE  
DATA  
REGISTERS  
CONTROL  
LOGIC  
HOLD  
R
L0  
R
L1  
R
L2  
R
L3  
RWO 10  
¯¯¯  
CS  
11  
12  
¯¯¯  
WP  
13 SI  
© Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
Doc. No. MD-2017 Rev. F  

CAT5251YI-50 替代型号

型号 品牌 替代类型 描述 数据表
AD8403ARUZ50-REEL ADI

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