X9221WPI中文资料Xicor数据手册PDF规格书

DESCRIPTION

The X9221 integrates two nonvolatile E2POT™ digitally controlled potentiometers on a monolithic CMOS microcircuit.

FEATURES

• Two E2POTs in One Package

• Two-Wire Serial Interface

• Register Oriented Format

—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

• Low Power CMOS

• Direct Write Cell

—Endurance - 100,000 Writes per Register

—Register Data Retention - 100 years

• 8 Bytes of E2PROM memory

• 3 Resistor Array Values

—2KΩ to 50KΩ Mask Programmable

• Resolution: 64 Taps each Pot

• 20-Lead Plastic DIP and 20-Lead SOIC Packages