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CAT521J

更新时间： 2025-07-19 20:42:11
品牌 Logo 应用领域
CATALYST 光电二极管
页数 文件大小 规格书
10页 71K
描述
Analog Circuit, 1 Func, PDSO14, SOIC-14

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CAT521J 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP,
针数：14Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.64
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：8.65 mm
功能数量：1端子数量：14
最高工作温度：70 °C最低工作温度：
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）：240认证状态：Not Qualified
座面最大高度：1.75 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：3 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)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宽度：3.9 mm
Base Number Matches：1

CAT521J 数据手册

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E
CAT521  
Configured Digitally Programmable Potentiometer (DPP™):  
Programmable Voltage Applications  
TM  
FEATURES  
APPLICATIONS  
■ 8-bit DPP configured as a programmable  
■ Automated product calibration  
voltage source in DAC-like applications  
■ Remote control adjustment of equipment  
■ Buffered wiper output  
■ Offset, gain and zero adjustments in  
■ Non-volatile NVRAM memory wiper storage  
■ Output voltage range includes both supply rails  
■ 1 LSB accuracy, high resolution  
self-calibrating and adaptive control systems  
■ Tamper-proof calibrations  
■ DAC (with memory) substitute  
■ Serial Microwire-like interface  
■ Single supply operation: 2.7V - 5.5V  
■ Setting read-back without effecting outputs  
DESCRIPTION  
The CAT521 is a 8-bit digitally-programmable  
potentiometer (DPP™) configured for programmable  
voltage and DAC-like applications. Intended for final  
calibration of products such as camcorders, fax  
machines and cellular telephones on automated high  
volume production lines, it is also well suited for  
self-calibrating systems and for applications where  
equipment which requires periodic adjustment is either  
difficult to access or in a hazardous environment.  
settings and stored settings can be read back without  
disturbing the DPP’s output.  
TheCAT521iscontrolledwithasimple3-wire,Microwire-  
like serial interface. A Chip Select pin allows several  
devices to share a common serial interface.  
Communication back to the host controller is via a single  
serial data line thanks to the CAT521 Tri-Stated Data  
Output pin. A RDY/BSY output working in concert with  
aninternallowvoltagedetectorsignalsproperoperation  
of the non-volatile NVRAM memory Erase/Write cycle.  
The programmable DPP has an output voltage range  
which includes both supply rails. The wiper is buffered  
by a rail to rail op amp. The wiper setting, stored in  
non-volatile NVRAM memory, is not lost when the  
device is powered down and is automatically reinstated  
when power is returned. The wiper can be dithered to  
test new output values without effecting the stored  
The CAT521 is available in 0°C to 70°C commercial and  
-40°C to 85°C industrial operating temperature ranges.  
Both 14-pin plastic DIP and surface mount packages  
are available.  
FUNCTIONAL DIAGRAM  
PIN CONFIGURATION  
V
V
DD  
REFH  
14  
RDY/BSY  
3
1
DIP Package (P, L)  
SOIC Package (J, W)  
7
PROGRAM  
CONTROL  
PROG  
1
2
3
4
5
14  
13  
12  
11  
10  
9
14  
13  
12  
11  
10  
9
V
V
1
2
3
4
5
V
V
REFH  
DD  
REFH  
DD  
5
2
CLK  
RDY/BSY  
CS  
NC  
V
CLK  
RDY/BSY  
CS  
NC  
V
DI  
WIPER  
CONTROL  
REGISTER  
AND  
CAT521  
CAT521  
SERIAL  
CONTROL  
CLK  
OUT  
OUT  
NVRAM  
NC  
NC  
V
NC  
NC  
V
4
12  
+
CS  
V
OU  
DI  
DI  
DO  
DO  
6
7
6
7
REFL  
REFL  
SERIAL  
DATA  
OUTPUT  
REGISTER  
6
8
PROG  
GND  
8
PROG  
GND  
DO  
8
9
CAT521  
V
GND  
REFL  
Doc. No. 2003, Rev. F  
© 2004 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
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