MCP4331 potentiometers equivalent, (mcp434x / mcp436x) 7-bit (129 wiper steps) digital potentiometers.
* Quad Resistor Network
* Potentiometer or Rheostat configuration options
* Resistor Network Resolution - 7-bit: 128 Resistors (129 Taps) - 8-bit: 256 Resisto.
* Internal weak pull-up on all digital inputs
* Wide Operating Voltage: - 2.7V to 5.5V - Device Characteristics .
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