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CAT5259 Dataheets PDF



Part Number CAT5259
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description Quad Digital Potentiometer
Datasheet CAT5259 DatasheetCAT5259 Datasheet (PDF)

CAT5259 Quad Digital Potentiometer (POT) with 256 Taps and I2C Interface Description The CAT5259 is four digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT 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 digital P.

  CAT5259   CAT5259


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CAT5259 Quad Digital Potentiometer (POT) with 256 Taps and I2C Interface Description The CAT5259 is four digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT 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 digital POT. 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. The CAT5259 can be used as a potentiometer or as a two terminal, variable resistor. .


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