APPLICATION NOTES
A V A I L A B L E
AN20 • AN42 • AN44–48 • AN50 • AN52 • AN53 • AN73
Advance Information X9221 Terminal
Voltage ±5V,
64 Taps
X9221
Dual E2POT™ Nonvolatile Digital Potentiometer
FEATURES DESCRIPTION
The X9221 integrates two nonvolatile E2POT™ digitally controlled potentiometers on a monolithic
CMOS microcircuit.
The X9221 contains two resistor arrays, each composed of 63 resistive elements.
Between each element and at either end are tap points accessible to the wiper elements.
The position of the wiper element on the array is controlled by the user through the two-wire serial bus interface.
Each resistor array has associated with it a wiper counter register and four 8-bit ...