The MCP40D17/8/9 devices are volatile, 7-bit (128 wiper steps) digital potentiometers with an I2C™Compatible interface. This family offers 5kΩ, 10kΩ, 50kΩ and 100kΩ end-to-end resistance values and is available in miniature 5 or 6 lead SC-70 packaging with potentiometer or rheostat pinouts.

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• Potentiometer or Rheostat configuration options
• 127 Resistors (128 Steps)
• Zero Scale to Full Scale Wiper operation
• RAB Resistances: 5kΩ, 10kΩ, 50kΩ and 100kΩ
• Low Wiper Resistance: 100Ω (typical)
• Absolute (Rheostat): 50 ppm typical(0°C to 70°C)
• Ratiometric (Potentiometer): 15 ppm typical
• Simple I2C™Compatible Protocol with read & write commands
• Brown-out reset protection (1.5V typical)
• Power-on Default Wiper Setting (Mid-scale)
• Low-Power Operation: 2.5 µA Static Current (typ)
• 2.7V to 5.5V - Device Characteristics Specified
• 1.8V to 5.5V - Device Operation