The MCP443X devices are quad-channel, volatile, 7-bit (129 wiper steps) digital potentiometers with an I2C compatible interface. The MCP443X family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.
Feature
Quad Resistor Network
Potentiometer or Rheostat configuration options
Resistor Network Resolution:
Four RAB Resistances options:
Zero-scale to Full-scale Wiper Operation
Low Wiper Resistance – 75Ω typical
Low Tempco:
I2C™Compatible Serial Interface Support:
Serial Protocol Allows High-Speed Read/Write to Wiper
Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
Reset Input Pin
Brown-out Reset Protection – 1.5V typical
Serial Interface Inactive Current – 2.5 uA typical
High-Voltage Tolerant Digital Inputs Up to 12.5V
Supports Split Rail Applications
Wide Operating Voltage:
Wide Bandwidth (-3 dB) Operation – 2 MHz typical for 5.0Ω Device
Extended Temperature Range (-40°C to +125°C)
Package Types: 4x4 QFN-20, TSSOP-20
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
