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X9251

Renesas
Part Number X9251
Manufacturer Renesas
Description Quad Digitally Potentiometers
Published Jun 3, 2020
Detailed Description DATASHEET X9251 Single Supply/Low Power/256-Tap/SPI Bus, Quad Digitally-Controlled (XDCP™) Potentiometer FN8166 Rev 7....
Datasheet PDF File X9251 PDF File

X9251
X9251

Overview
DATASHEET X9251 Single Supply/Low Power/256-Tap/SPI Bus, Quad Digitally-Controlled (XDCP™) Potentiometer FN8166 Rev 7.
00 January 14, 2021 The X9251 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches.
The position of the wipers are controlled by the user through the SPI bus interface.
Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers that can be directly written to and read by the user.
The content of the WCR controls the position of the wiper.
At power-up, the device recalls the content of the default Data Registers of each DCP (DR00, DR10, DR20, and DR30) to the corresponding WCR.
The XDCP can be used as a three terminal potentiometer or as a two terminal variable resistor in a wide variety of applications including control, parameter adjustments, and sig...


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