Microchip Technology MCP4661T-103E/ST

Description
The MCP45XX and MCP46XX devices are a family of I²C interface digital potentiometers with non-volatile memory. They offer a wide range of product offerings, including:
Single or dual resistor network options
Potentiometer or rheostat configuration options
7-bit or 8-bit resistor network resolution
RAB resistances of 5kΩ, 10kΩ, 50kΩ, or 100kΩ
Zero-scale to full-scale wiper operation
Low wiper resistance (75Ω typical)
Low tempco:
Absolute (rheostat): 50 ppm typical (0°C to 70°C)
Ratiometric (potentiometer): 15 ppm typical
Non-volatile memory:
Automatic recall of saved wiper setting
WiperLock™ Technology
10 general purpose memory locations
I²C serial interface:
100 kHz, 400 kHz, and 3.4 MHz support
High-speed read/write to wiper
Read/write to EEPROM
Write protect enable/disable
WiperLock enable/disable
Resistor network terminal disconnect feature via the Terminal Control (TCON) Register
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 µA typical)
High-voltage tolerant digital inputs (up to 12.5V)
Wide operating voltage: -2.7V to 5.5V
Device characteristics specified: 1.8V to 5.5V
Extended temperature range: -40°C to 125°C

Features
Single or dual resistor network options
Potentiometer or rheostat configuration options
7-bit or 8-bit resistor network resolution
RAB resistances of 5kΩ, 10kΩ, 50kΩ, or 100kΩ
Zero-scale to full-scale wiper operation
Low wiper resistance (75Ω typical)
Low tempco:
Absolute (rheostat): 50 ppm typical (0°C to 70°C)
Ratiometric (potentiometer): 15 ppm typical
Non-volatile memory:
Automatic recall of saved wiper setting
WiperLock™ Technology
10 general purpose memory locations
I²C serial interface:
100 kHz, 400 kHz, and 3.4 MHz support
High-speed read/write to wiper
Read/write to EEPROM
Write protect enable/disable
WiperLock enable/disable
Resistor network terminal disconnect feature via the Terminal Control (TCON) Register
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 µA typical)
High-voltage tolerant digital inputs (up to 12.5V)
Wide operating voltage: -2.7V to 5.5V
Device characteristics specified: 1.8V to 5.5V
Extended temperature range: -40°C to 125°C

Applications
Audio volume control
LED brightness control
Motor speed control
Sensor calibration
Voltage and current adjustment
Programmable gain amplifiers
Active filters
Power supply regulation