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X9258 - Quad Digitally Potentiometers

Datasheet Summary

Description

SERIAL CLOCK (SCL) The SCL input is used to clock data into and out of the X9258.

SERIAL DATA (SDA) SDA is a bidirectional pin used to transfer data into and out of the device.

Features

  • Four potentiometers in one package.
  • 256 resistor taps/potentiometer 0.4% resolution.
  • 2-wire serial interface.
  • Wiper resistance, 40Ωtypical @ V+ = 5V, V- = -5V.
  • Four nonvolatile data registers for each potentiometer.
  • Nonvolatile storage of wiper position.
  • Standby current.

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Datasheet preview – X9258

Datasheet Details

Part number X9258
Manufacturer Renesas
File Size 795.94 KB
Description Quad Digitally Potentiometers
Datasheet download datasheet X9258 Datasheet
Additional preview pages of the X9258 datasheet.

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Full PDF Text Transcription

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DATASHEET X9258 Low Noise/Low Power/2-Wire Bus/256 Taps Quad Digital Controlled Potentiometers (XDCP™) FN8168 Rev 6.00 December 15, 2011 The X9258 integrates 4 digitally controlled potentiometers (XDCP™) on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented using 255 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the 2-wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 non-volatile Data Registers (DR0:DR3) that can be directly written to and read by the user.
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