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X9221

Xicor
Part Number X9221
Manufacturer Xicor
Description Dual E2POT Nonvolatile Digital Potentiometer
Published Apr 16, 2005
Detailed Description APPLICATION NOTES A V A I L A B L E AN20 • AN42 • AN44–48 • AN50 • AN52 • AN53 • AN73 Advance Information X9221 Termina...
Datasheet PDF File X9221 PDF File

X9221
X9221

Overview
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 data registers that can be directly written and read by the user.
The contents of the wiper counter register control the position of the wiper on the resistor array.
The data register may be read or written by the user.
The contents of the data registers can be transferred to the wiper counter regis...


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