X9C103SIZT1 - Wiper Position Stored in Non-volatile Memory and Recalled on Power-up 

The X9C102, X9C103, X9C104, X9C503 are Intersils’ 

digitally controlled (XDCP) potentiometers. The device 

consists of a resistor array, wiper switches, a control section, 

and non-volatile memory. The wiper position is controlled by 

a three-wire interface.

The potentiometer is implemented by a resistor array 

composed of 99 resistive elements and a wiper switching 

network. Between each element and at either end are tap 

points accessible to the wiper terminal. The position of the 

wiper element is controlled by the CS, U/D, and INC inputs. 

The position of the wiper can be stored in non-volatile 

memory and then be recalled upon a subsequent power-up 

operation.

The device can be used as a three-terminal potentiometer or 

as a two-terminal variable resistor in a wide variety of 

applications ranging from control to signal processing to 

parameter adjustment.

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