Digital Potentiometer 64POS 10KOhm Single 14-Pin TSSOP

The X9429 integrates a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit. The digital 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. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and a 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. Power-up 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.

• Single Voltage Potentiometer
• 64 Resistor Taps
• 2-wire Serial Interface for Write, Read, and Transfer Operations of the Potentiometer
• Wiper Resistance, 150W Typical at 5V
• Non-Volatile Storage of Multiple Wiper Positions
• Power-on Recall. Loads Saved Wiper Position on Power-up.
• Standby Current < 3µA Max
• VCC : 2.7V to 5.5V Operation
• 2.5kW, 10kW Total Pot Resistance
• Endurance: 100,000 Data Changes per Bit per Register
• 100 yr. Data Retention
• 14 Ld TSSOP, 16 Ld SOIC
• Low Power CMOS
• Pb-free available (RoHS compliant)