X9221AYPZ Datasheet

Data Acquisition - Digital Potentiometers


The X9221AYPZ integrates two digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.The digitally 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 2-wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 2 nonvolatile Data Registers (DR0:DR1) 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 through the switches. Power up recalls the contents of DR0 to the WCR. X9221AYPZ Features • Two XDCPs in one package• 2-wire serial interface• Register oriented format, 8 registers total —Directly write wiper position —Read wiper position —Store as many as four positions per pot• Instruction format —Quick transfer of register contents to resistor array• Direct write cell —Endurance–100,000 writes per bit per register• Resistor array values —2kΩ, 10kΩ, 50kΩ• Resolution: 64 taps each pot• 20 Ld plastic DIP and 20-lead SOIC packages• Pb-free plus anneal available (RoHS compliant)


[{"Name":"Packaging","Value":"Tube"},{"Name":"Taps","Value":"64"},{"Name":"Resistance (Ohms)","Value":"2k"},{"Name":"Number of Circuits","Value":"2"},{"Name":"Temperature Coefficient","Value":"±300 ppm/°C Typical"},{"Name":"Memory Type","Value":"Non-Volatile"},{"Name":"Interface","Value":"I2C (Device Address)"},{"Name":"Voltage - Supply","Value":"4.5 V ~ 5.5 V"},{"Name":"Operating Temperature","Value":"0°C ~ 70°C"},{"Name":"Package / Case","Value":"20-DIP (0.300", 7.62mm)"}]

Manufacturer information


Littelfuse (NASDAQ: LFUS) - As the worldwide leader in circuit protection, Littelfuse offers POWR-GARD®, Teccor®, Wickmann®, Pudenz®, Hamlin®, PulseGuard® and SIDACtor® branded products, with a wide range of technologies such as Fuses and Accessories, PTCs, GDTs, Varistors, Polymer ESD Suppressors, Surge Protection Modules, TVS Diodes, TVS Diode Arrays (SPA® Diodes), Switching Thyristors, Power Modules, LED Protector, SIDACtor® Protection Thyristor as well as reed switches, relays and Hall Effect sensors. Littelfuse products are backed by more than 88 years of technology innovation, industry leading technical support, design and manufacturing expertise. Littelfuse products are vital components in virtually every product that uses electrical energy, including automobiles, computers, consumer electronics, handheld devices, industrial equipment, and telecom/datacom circuits

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