QT240-ISSG ic equivalent, 4 key qtouch sensor ic.
! PC Peripherals ! Backlighted buttons ! Appliance controls ! Security systems ! Access systems ! Pointing devices ! Ins.
Sense pin (to Rs2 + Cs2) Sense pin (to Cs2, electrode) Sense pin (to Rs1 + Cs1) Sense pin (to Cs1, electrode); speed option Output, key 1 Output, key 2 Output, key 3 Ground Sync in and/or spread-spectrum drive Unbonded internally Unbonded internally .
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