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X93256WV14I-2.7 Datasheet(PDF) 1 Page - Intersil Corporation |
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X93256WV14I-2.7 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 9 page 1 ® FN8188.0 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. X93256 Dual Digitally Controlled Potentiometers (XDCPs™) FEATURES • Dual solid-state potentiometers • Individual Up/Down interfaces • 32 wiper tap points per potentiometer —Wiper position stored in nonvolatile memory and recalled on power-up • 31 resistive elements per potentiometer —Temperature compensated —Maximum resistance tolerance of ± 25% —Terminal voltage, 0 to VCC • Low power CMOS —VCC = 2.7 V - 5.5 V. —Active current, 200µA typical per potentiometer —Standby current, 4µA max per potentiometer • High reliability —Endurance 200,000 data changes per bit —Register data retention, 100 years •RTOTAL value = 12.5kΩ, 50kΩ • Packages —14-lead TSSOP DESCRIPTION The Intersil X93256 is a dual digitally controlled potentiometer (XDCP). The device consists of two resistor arrays, wiper switches, a control section, and nonvolatile memory. The wiper positions are controlled by individual Up/Down interfaces. A potentiometer is implemented by a resistor array composed of 31 resistive elements and a wiper switching network. The position of each wiper element is controlled by a set of independent 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. Each potentiometer is connected as a three-terminal variable resistor and can be used in a wide variety of applications including: – bias and gain control – LCD Contrast Adjustment BLOCK DIAGRAM 5-Bit Up/Down Counter 5-Bit Nonvolatile Memory Store and Recall Control Circuitry One of Decoder Resistor Array RH1 U/D1 INC1 CS1 Transfer Gates Thirty VCC VSS RL1 General Description Detailed Single Potentiometer Description 0 1 2 28 29 30 31 Two Control and Memory Up/Down (U/D1 & U/D2) Increment (INC1 & INC2) Device Select (CS1 & CS2) VCC (Supply Voltage) VSS (Ground) RH1 RL1 30K RH2 RL2 RW RW1 RW2 Data Sheet March 4, 2005 |
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