MPR084中文资料8-Pad Touch Sensor Controller数据手册恩XP规格书

描述 Description

Overview The MPR084 is an Inter-Integrated Circuit Communication (I2C) driven Capacitive Touch Sensor Controller, optimized to manage an 8-touch pad capacitive array. The device can accommodate a wide range of implementations through 3 output mechanisms, and many configurable options. Archived content is no longer updated and is made available for historical reference only.

特性 Features

•Current touched pad position is always available on demand for polling-based systems

•41 uA average supply current with 1 s response time

•2 uA Standby Current

•Variable low power mode response time (32 ms – 4 s)

•Rejects unwanted multi-key detections from EMI events such as PA bursts or user handling

•Ongoing pad analysis and detection is not reset by EMI events

•Data is buffered in a FIFO for shortest access time

•/IRQ output advises when FIFO has data

•System can set interrupt behavior as immediate after event, or program a minimum time between successive interrupts

•Sounder output can be enabled to generate key-click sound when rotary is touched

•Two hardware selectable I2C addresses allowing two devices on a single I2C bus

•-40° C to +85° C operating temperature range

•5 mm x 5 mm x 1 mm 16 lead QFN package

•Configurable real-time auto calibration

•Pb-Free and RoHS compliant