Intersil X9241AMVIZT1

Description
The X9241A is a monolithic CMOS integrated microcircuit that integrates four digitally controlled potentiometers (XDCPs). Each XDCP is implemented using 63 resistive elements in a series array, with tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through a 2-wire bus interface.
Each potentiometer has a volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers (DRO:DR3) that can be directly written to and read by the user. The contents of the WCR control the position of the wiper on the resistor array through the switches. Power up recalls the contents of DRO to the WCR.

Features
Four potentiometers in one package
2-wire serial interface
Register-oriented format
Direct read/write/transfer of wiper positions
Store as many as four positions per potentiometer
Terminal Voltages: 5V, -3.0V
Cascade resistor arrays
Low power CMOS
High Reliability
Endurance: 100,000 data changes per bit per register
Register data retention: 100 years
16-bytes of nonvolatile memory
3 resistor array values: 2k2, 10k2, 50k2 or combination
Cascadable for values of 4ks2 to 200kc
Resolution: 64 taps each pot
20 Ld plastic DIP, 20 Ld TSSOP and 20 LD SOIC packages
Pb-free available (RoHS compliant)

Applications
The XDCP 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
Signal processing