X9421WV14 product image


Data Acquisition - Digital Potentiometers
INTERSIL [Intersil Corporation]



The  X9421WV14  integrates a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.The digital controlled potentiometer is implemented using 63 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 SPI bus interface. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and a four nonvolatile Data Registers 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. Powerup recalls the contents of the default data register (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.
X9421WV14 Features 
• Single Voltage Potentiometer
• 64 Resistor Taps
• SPI Serial Interface for Write, Read, and Transfer Operations of the Potentiometer
• Wiper Resistance, 150Ω Typical at 5V
• 4 Non-Volatile Data Registers 
• Non-Volatile Storage of Multiple Wiper Positions
• Power-on Recall. Loads Saved Wiper Position on Power-up.
• Standby Current < 5µA Max 
• VCC : 2.7V to 5.5V Operation
• 2.5kΩ, 10kΩ End to End Resistance
• 100 yr. Data Retention
• Endurance: 100, 000 Data Changes per Bit per Register
• 14 Ld TSSOP, 16 Ld SOIC
• Low Power CMOS
• Pb-Free Plus Anneal Available (RoHS Compliant) 


Resistance (Ohms)10k
Number of Circuits1
Temperature Coefficient±300 ppm/°C Typical
Memory TypeNon-Volatile
Interface5-Wire SPI (Chip Select, Device Address)
Voltage - Supply4.5 V ~ 5.5 V
Operating Temperature0°C ~ 70°C
X9421WV14 Price
Reference price:
Quote within 24 hours
Request for Quotation
Part No.:
*Quantity :
*Name :
*Email :
Phone/MP :
EE-SX670Optical SwitchesNSC [National Semiconductor]
TL712CPWRG4Comparator ICsTexas Instruments(texas)
SN74LS08NSRE4Logic GatesVishay
INA213AIDCKRCurrent & Power Monitors & RegulatorsROHM
1PS79SB31Diodes & RectifiersMICROSEMI [Microsemi Corporation]
MAX3243ECPWRRS-232 Interface ICfreescale
REF02AU/2K5Voltage ReferencesInternational Rectifier
STD30PF03LT4MOSFETMicrel Semiconductor
LM2901PWComparator ICsTexas Instruments(texas)
IRF9540NLPBFTransistorsTexas Instruments(texas)