音叉式微晶振MS1V-T1K 32.768 kHz到PIC16F690的接口

Thistechnicalbriefdiscussestheinterfacingandchar-

acterizationoftheMicroCrystalMS1V-T1K32.768kHz

tuningfork(watch)crystalwiththePIC16F690PIC

®

microcontrollerTimer1low-poweroscillator.Thisinfor-

mationcanbeusedtoassistthedesignerininterfacing

32.768kHztuningforkcrystaltothePIC16F690MCU.

Theinformationinthistechnicalbriefisintendedasa

designsuggestion.Thedesignershouldverifyproper

operationfortheirparticularapplication.TB097InterfacingaMicroCrystalMS1V-T1K32.768kHzTuningForkCrystaltoaPIC16F690/SSAuthor:StevenBibleSCHEMATICDIAGRAMMicrochipTechnologyInc.TheschematicforthecircuitisshowninFigure1.TheStéphaneDeBonituningforkcrystalresonatorisconnectedtotheMicroCrystalPIC16F690OSC1andOSC2pins.CapacitorsCDandCGaretheloadcapacitorsandresistorRDisthe