1.1 Features

● Number of keys

——10/14/22 buttons (Sensor can be reused as IO)

● LP (low power) mode

——Low power mode: idle mode

● Communication mode

——IIC (supports standard mode or fast mode)

● Selectable key modes

——Each button can operate in independent mode

●Power supply voltage: 2.7～5.5V

● ROM

——8K FLASH

● RAM

——512 bytes SRAM

● Automatically adapt to environmental changes

●Key sensitivity

——Automatically configure the sensitivity of each button

● Chip-level automatic calibration logic

——Adjustable automatic calibration speed

●Package model: QFN32/SOP16/SOP20/SOP28