双数字可编程电位计( DPPA ?? ¢ )与64丝锥和I2C接口 Dual Digitally Programmable Potentiometer DPP⢠with 64 Taps and I2C Interface
The CAT5221 is two digital POTs integrated with control logic and 16 bytes of EEPROM memory. Each digital POT 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 digital POT. 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.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.
Features
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容差 ±20 %
无卤素状态 Halogen Free
供电电流 1 mA
电路数 2
针脚数 64
电阻 2.5 kΩ
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.5V ~ 6V
安装方式 Surface Mount
引脚数 20
封装 TSSOP-20
封装 TSSOP-20
工作温度 -40℃ ~ 85℃
温度系数 ±300 ppm/℃
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 Audio Equipment, Industrial controls
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99