Microchip Technology MCP4642-104E/UN

Description
The MCP45XX and MCP46XX devices are a family of digital potentiometers (DPOTs) with nonvolatile memory. They offer a wide range of product offerings using an I²C interface, supporting 7-bit and 8-bit resistor networks, nonvolatile memory configurations, and Potentiometer and Rheostat pinouts.

Features
Single or Dual Resistor Network Options
Potentiometer or Rheostat Configuration Options
Resistor Network Resolution:
7-bit: 128 Resistors (129 Steps)
8-bit: 256 Resistors (257 Steps)
RAB Resistances Options:
-5 kΩ
10 kΩ
50 kΩ
100 kΩ
Zero-Scale to Full-Scale Wiper Operation
Low Wiper Resistance: 750 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
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 to be Enabled/Disabled
WiperLock to be Enabled/Disabled
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 Device Operation
Wide Bandwidth (-3dB) Operation: 2 MHz (typ.) for 5.0 kΩ Device
Extended Temperature Range (-40°C to 125°C)

Applications
Audio Volume Control
LED Brightness Control
Motor Speed Control
Sensor Calibration
Programmable Voltage and Current Sources
Programmable Filters
Programmable Oscillators
Programmable Logic Circuits