X9241AYST1 Datasheet

Quad Digital Controlled Potentiometers


The X9241AYST1 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.The digitally controlled potentiometer is implemented using 63 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 2-wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 nonvolatile Data Registers (DR0:DR3) 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 through the switches. Power up recalls the contents of DR0 to the WCR. X9241AYST1 Features • Four potentiometers in one package• 2-wire serial interface • Register oriented format - Direct read/write/transfer of wiper positions - Store as many as four positions per potentiometer• Terminal Voltages: +5V, -3.0V• Cascade resistor arrays• Low power CMOS• High Reliability - Endurance–100,000 data changes per bit per register - Register data retention–100 years• 16-bytes of nonvolatile memory • 3 resistor array values -2kΩ, 10kΩ, 50kΩ or combination - Cascadable for values of 4kΩ to 200kΩ• Resolution: 64 taps each pot• 20 Ld plastic DIP, 20 Ld TSSOP and 20 Ld SOIC packages• Pb-free available (RoHS compliant)


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Manufacturer information

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