X9312 ® Terminal Voltage 0V to +15V, 100 TapsNOT RECOMMENDED FOR NEW DESIGNSData SheetMarch 15, 2005FN8176.0NO RECOMMENDED REPLACEMENTcontact our Technical Support Center at1-888-INTERSIL or www.intersil.com/tscDigitally Controlled PotentiometerDESCRIPTION(XDCP™) The Intersil X9312 is a digitally controlled potentiometer (XDCP). The device consists of a FEATURES resistor array, wiper switches, a control section, and • Solid-state potentiometer nonvolatile memory. The wiper position is controlled • 3-wire serial interface by a 3-wire interface. • Terminal voltage, 0 to +15V The potentiometer is implemented by a resistor array • 100 wiper tap points composed of 99 resistive elements and a wiper —Wiper position stored in nonvolatile memory switching network. Between each element and at and recalled on power-up either end are tap points accessible to the wiper • 99 resistive elements terminal. The position of the wiper element is —Temperature compensated controlled by the CS, U/D, and INC inputs. The —End to end resistance range ± 20% position of the wiper can be stored in nonvolatile • Low power CMOS memory and then be recalled upon a subsequent —VCC = 5V power-up operation. —Active current, 3mA max. —Standby current, 1mA max. The device can be used as a three-terminal • High reliability potentiometer or as a two-terminal variable resistor in —Endurance, 100,000 data changes per bit a wide variety of applications including: —Register data retention, 100 years – control • RTOTAL values = 10k Ω, 50k Ω, and 100k Ω • Packages – parameter adjustments —8-lead SOIC and DIP – signal processing BLOCK DIAGRAM U/D 7-Bit 99 RH/VH INC Up/Down VCC (Supply Voltage) CS Counter 98 97 Up/Down RH/VH (U/D) 7-Bit 96 Control Nonvolatile One Increment and RW/VW Memory of (INC) One Memory Transfer Resistor Hundred Device Select Gates Decoder Array (CS) RL/VL 2 Store and VSS (Ground) Recall 1 VCC Control V General SS Circuitry 0 RL/VL RW/VW Detailed 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc. XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
