Capacitive Touch Sensor Interface IC

The EM6420 is a true low power Touch Sensor Interface IC able to scan sequentially up to 16 capacitive Sensors The device parameters (number of used Sensors Sensors scan frequency, Sensors sensitivity level, IRQ condition) are configurable either from a host Microcontroller through a Communication port or through configuration inputs. Recognised touch inputs will be signaled with an active edge at the IRQ pad and data are ready to be read through the communicaion port by the host MCU. Conditions for the IRQ to get active are configurable : at the end of every scan, at the end of a scan if at least one Sensor is active or at the end of a scan if the Sensors state has changed. The EM6420 CAN also detect the most active Sensor in applications where Sensors are tightly spaced. It compares relative levels among Sensors and selects the Sensor with the largest signal strength. By EM Microelectronic
EM6420 's PackagesEM6420 's pdf datasheet

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EM6420 Application circuits
EM6420 circuits
This is one application circuit of EM6420,If you need more circuits,please download EM6420's pdf datasheet.

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