RENESAS X9258US24IZ-2.7

The X9258 integrates 4 digitally controlled potentiometers (XDCP™) on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented using 255 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the 2 - wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 non - volatile Data Registers (DR0:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Power - up recalls the contents of DR0 to the WCR. 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, and signal processing.

• Four potentiometers in one package
• 256 resistor taps/potentiometer, 0.4% resolution
• 2 - wire serial interface
• Wiper resistance, 40Ω typical
• Four nonvolatile data registers for each potentiometer
• Nonvolatile storage of wiper position
• Standby current < 5μA max (total package)
• Power supplies: VCC = 2.7V to 5.5V, V+ = 2.7V to 5.5V, V− = - 2.7V to - 5.5V
• 100kΩ, 50kΩ total potentiometer resistance
• High reliability: Endurance: 100,000 data changes per bit per register, Register data retention: 100 years
• 24 Ld SOIC, 24 Ld TSSOP
• Dual supply version of X9259
• Pb - free (RoHS compliant)