DESCRIPTION
The X9421 integrates a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.

FEATURES
• Single Voltage Potentiometer
• 64 Resistor Taps
• SPI Serial Interface for write, read, and transfer
   operations of the potentiometer
• Wiper Resistance, 150Ω Typical at 5V
• 4 Non-Volatile Data Registers
• Non-Volatile Storage of Multiple Wiper Positions
• Power On Recall. Loads Saved Wiper Position on
   Power Up.
• Standby Current < 5µA Max
• VCC : 2.7V to 5.5V Operation
• 2.5KΩ, 10KΩ End to End Resistance
• 100 yr. Data Retention
• Endurance: 100, 000 Data Changes per Bit per
   Register
• 14-Lead TSSOP, 16-Lead SOIC
• Low Power CMOS