The ISL22316WMUEP integrates a single digitally controlled
potentiometer (DCP) and non-volatile memory on a
monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented with a
combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I2C bus interface. The potentiometer has an associated
volatile Wiper Register (WR) and a non-volatile Initial Value
Register (IVR) that can be directly written to and read by the
user. The contents of the WR controls the position of the
wiper. At power-up, the device recalls the contents of the
DCP’s IVR to the WR.
The DCP can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications including control, parameter adjustments and
signal processing.

Features
• Specifications per DSCC VID V62/08603-01XB
• Full Mil-Temp Electrical Performance from -55°C to +125°C
• Controlled Baseline with One Wafer Fabrication Site and
One Assembly/Test Site
• Full Homogeneous Lot Processing in Wafer Fab
• No Combination of Wafer Fabrication Lots in Assembly
• Full Traceability Through Assembly and Test by
Date/Trace Code Assignment
• Enhanced Process Change Notification
• Enhanced Obsolescence Management
• Eliminates Need for Up-Screening a COTS Component
• 128 Resistor Taps
• I2C Serial Interface
- Two Address Pins, Up To Four Devices/Bus
• Non-volatile Storage of Wiper Position
• Wiper Resistance: 70Ω Typical @ 3.3V
• Shutdown Mode
• Shutdown Current 5µA Max
• Power Supply: 2.7V to 5.5V
• 10kΩ Total Resistance
• High Reliability
- Endurance: 1,000,000 Data Changes Per Bit Per
Register
- Register Data Retention:
- 10 years @ T ≤ +125°C
- 15 years @ T ≤ +90°C
- 50 years @ T ≤ +55°C
• 10 Ld MSOP