QT240 ic equivalent, 4 key qtouch sensor ic.
spread-spectrum acquisition capability, external synchronization of acquire bursts, and fast and slow acquisition modes. These modes are enabled via high-value resistors .
* PC Peripherals
* Backlighted buttons
* Appliance controls
* Security systems
* Access systems
.
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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