The X9318 is a digitally controlled potentiometer (XDCP) that consists of a resistor array, wiper switches, control section, and nonvolatile memory.

It features a 3-wire serial interface, 100 wiper tap points, and a wiper position stored in nonvolatile memory that can be recalled on power-up.

Key Features:

  • Solid-state potentiometer
  • Terminal voltage: 0 to +8V
  • Low power CMOS, Vcc = 5V
  • High reliability, endurance: 100,000 data changes per bit
  • Register data retention: 100 years


  • LCD bias control
  • DC bias adjustment
  • Gain and offset trim
  • Laser diode bias control
  • Voltage regulator output control


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