MCP4442
MCP4442 is 7/8-Bit Quad I2C Digital POT manufactured by Microchip Technology.
Features
- Quad Resistor Network
- Potentiometer or Rheostat configuration options
- Resistor Network Resolution
- 7-bit: 128 Resistors (129 Taps)
- 8-bit: 256 Resistors (257 Taps)
- RAB Resistances options of:
- 5 kΩ
- 10 kΩ
- 50 kΩ
- 100 kΩ
- Zero Scale to Full Scale Wiper operation
- Low Wiper Resistance: 75 Ω (typical)
- Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
- Nonvolatile Memory
- Automatic Recall of Saved Wiper Setting
- Wiper Lock™ Technology
- 5 General Purpose Memory Locations
- I2C Serial Interface
- 100 k Hz, 400 k Hz, and 3.4 MHz support
- Serial protocol allows:
- High-Speed Read/Write to wiper
- Read/Write to EEPROM
- Write Protect to be enabled/disable
- Wiper Lock to be enabled/disabled
- Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
- Reset input pin
- Write Protect Feature
:
- Hardware Write Protect (WP) Control pin
- Software Write Protect (WP) Configuration bit
- Brown-out reset protection (1.5V typical)
- Serial Interface Inactive current (2.5 u A typical)
- High-Voltage Tolerant Digital Inputs: Up to 12.5V
- Supports Split Rail Applications
- Internal weak pull-up on all digital inputs (except SCL and SDA)
- Wide Operating...
