X9221WS中文資料Xicor數(shù)據(jù)手冊PDF規(guī)格書

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

—2K? to 50K? Mask Programmable

? Resolution: 64 Taps each Pot

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