Intersil X9260TS24I

Description
The X9260 integrates two digitally controlled potentiometers (XDCPs) on a monolithic CMOS integrated circuit. The XDCP 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 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 contents of the WCR control the position of the wiper on the resistor array through the switches. Power-up recalls the contents of the default Data Register (DRO) to the 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 signal processing.

Features
Dual-Two Separate Potentiometers
256 Resistor Taps/pot-0.4% Resolution
SPI Serial Interface for Write, Read, and Transfer Operations of the Potentiometer
Wiper Resistance, 100Ω typical @ V = 5V, V- = -5V
4 Nonvolatile Data Registers for Each Potentiometer
Nonvolatile Storage of Multiple Wiper Positions
Power-on Recall. Loads Saved Wiper Position on Power-up
Standby Current <5μA Max
Vcc: 2.7V to 5.5V Operation
50kΩ, 100kΩ Versions of End to End Resistance
100 yr. Data Retention
Endurance: 100,000 Data Changes per Bit per Register
24 Ld SOIC

Applications
Low Power CMOS
Power Supply Vcc = 2.7V to 5.5V, V = 2.7V to 5.5V, V- = -2.7V to -5.5V
Pb-Free Plus Anneal Available (RoHS Compliant)