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CAT5269

Part Number	CAT5269
Manufacturer	ON Semiconductor
Description	Dual Digital Potentiometer
Published	Dec 5, 2016
Detailed Description	CAT5269 Dual Digital Potentiometer (POT) with 256 Taps and 2‐wire Interface Description The CAT5269 is two digital POTs...
Datasheet	CAT5269 PDF File

Overview

CAT5269 Dual Digital Potentiometer (POT) with 256 Taps and 2‐wire Interface Description The CAT5269 is two digital POTs integrated with control logic and 18 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 2-wire 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 registers.
The CAT5269 can be used as a potentiometer or as a two terminal, variable resistor...

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