MCP4442 pot equivalent, 7/8-bit quad i2c digital pot.
* 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 (except SCL and SDA)
* Wide Operating Voltage: - 2.7V to 5.5V - De.
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