General Description
BD3375KV-C is a 22-channel Multiple Input Switch Monitor IC that detects the opening and closing of mechanical switches. Once it senses a change in the status of a switch, it sends an interrupt signal to the MCU via a serial peripheral interface (SPI).

Specifications
◾ AEC-Q100 Qualified (Note 1)
◾ Operational Voltage Range: 3.9V to 8V
◾ Uses 3.3/5.0V SPI protocol in communicating with the
   MCU
◾ Serial communication error checking through 8bit-CRC
◾ Thermal Shutdown Protection (TSD)
◾ Power on Reset (POR)
◾ Selectable source/sink current levels through register
   settings
◾ Wetting current timer capability
◾ 8 source or sink input terminals
◾ 14 source input terminals
◾ Separable Power Supply
   VPUA: 16ch (INA&INZ), VPUB: 6ch (INB)
◾ Interrupt notification upon switch status change
◾ 1 to 6 times matched LPF that eliminates input terminal
   noise
◾ Low current consumption (Intermittent monitoring)
◾ Status display of selected terminal at DMUX terminal
   (Note 1) Grade 1

APPLICATION
◾ Engine Control Module