DESCRIPTION
The X9420 integrates a single digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.

FEATURES
• Solid-State Potentiometer
• SPI serial interface
• Register oriented format
   —Direct read/write/transfer wiper positions
   —Store as many as four positions per
      potentiometer
• Power supplies
   —VCC = 2.7V to 5.5V
   —V+ = 2.7V to 5.5V
   —V– = –2.7V to –5.5V
• Low power CMOS
   —Standby current < 1µA
• High reliability
   —Endurance–100,000 data changes per bit per
      register
   —Register data retention–100 years
• 8-bytes of nonvolatile EEPROM memory
• 10KΩ or 2.5KΩ resistor arrays
• Resolution: 64 taps each pot
• 14-lead TSSOP, 16-lead SOIC, and 16-pin plastic
   DIP packages