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X9261UV24 Datasheet(PDF) 1 Page - Intersil Corporation |
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X9261UV24 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 20 page 1 ® FN8171.4 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9261 Single Supply/Low Power/256-Tap/SPI Bus Dual Digitally-Controlled (XDCP™) Potentiometers FEATURES • Dual–Two Separate Potentiometers • 256 Resistor Taps/pot–0.4% Resolution • SPI Serial Interface for Write, Read, and Transfer Operations of the Potentiometer Single Supply Device • Wiper Resistance, 100 Ω typical @ VCC = 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 •50k Ω, 100kΩ Versions of End to End Resistance • 100 yr. Data Retention • Endurance: 100,000 Data Changes per Bit per Register • 24 Ld SOIC, 24 Ld TSSOP • Low Power CMOS • Power Supply VCC = 5V ±10% • Pb-Free Plus Anneal Available (RoHS Compliant) DESCRIPTION The X9261 integrates 2 digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit. The digital 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 SPI bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four non-volatile Data Registers that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Powerup recalls the contents of the default Data Register (DR0) 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. FUNCTIONAL DIAGRAM RH0 RL0 Bus RW0 Interface and Control VCC VSS SPI Bus Address Data Status Write Read Transfer 50k Ω or 100kΩ versions Inc/Dec RH1 RL1 RW1 Power-on Recall Wiper Counter Register (WCR) Data Registers (DR0-DR3) Interface Control Data Sheet October 12, 2006 |
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