Intersil X9317TM8I

Description
The Intersil X9317 is a digitally controlled potentiometer (XDCP) consisting of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array composed of 99 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation.
The device can be used as a three-terminal potentiometer for voltage control or as a two-terminal variable resistor for current control in a wide variety of applications.

Features
Solid-state potentiometer
3-wire serial up/down interface
100 wiper tap points
Wiper position stored in nonvolatile memory and recalled on power-up
99 resistive elements
Temperature compensated
End-to-end resistance range ±20%
Low power CMOS
Vcc 2.7V to 5.5V, and 5V ±10%
Standby current <5μA
High reliability
Endurance, 100,000 data changes per bit
Register data retention, 100 years
RTOTAL values 10kn, 50kn, 100kn
Packages: 8 LD SOIC, TSSOP, and MSOP
Pb-free (RoHS compliant)

Applications
LCD bias control
DC bias adjustment
Gain and offset trim
Laser diode bias control
Voltage regulator output control