MCZ33972TEW

Multiple Switch Detection Interface with Suppressed Wake-Up

MCZ33972TEWR2

MULTIPLE SWITCH DETECTION INTERFACE; • Designed to operate 5.5 V ≤ VPWR ≤ 26 V\n• Switch input voltage range -14 V to VPWR, 40 V Max\n• Interfaces directly to MPU using 3.3 V/5.0 V SPI protocol\n• Selectable wake-up on change of state\n• Selectable wetting current (16 or 2.0 mA)\n• 8 programmable inputs (switches to battery or ground)\n• 14 switch-to-ground inputs\n• Typical standby current - VPWR = 100 μA and VDD = 20 μA\n• Active interrupt (INT) on change-of-switch state\n• Pb-free packaging designated by suffix code EW\n• Exposed pad packaging designated by suffix code EK ;

Multiple Switch Detection Interface with Suppressed Wake-upThe 33972 Multiple Switch Detection Interface with suppressed wake-up is designed to detect the closing and opening of up to 22 switch contacts. The switch status, either open or closed, is transferred to the microprocessor unit (MCU) through a serial peripheral interface (SPI). The device also features a 22-to-1 analog multiplexer for reading inputs as analog. The analog input signal is buffered and provided on the AMUX output pin for the MCU to read.

MCZ33972TEW/R2

Multiple Switch Detection Interface with Suppressed Wake-up

MCZ33972TEWR2

Multiple Switch Detection Interface with Suppressed Wake-Up

MCZ33972TEWSLASHR2

Multiple Switch Detection Interface with Suppressed Wake-up

33972

MultipleSwitchDetectionInterfacewithSuppressedWake-up

33972

MultipleSwitchDetectionInterfacewithSuppressedWake-Up

MultipleSwitchDetectionInterfacewithSuppressedWake-up The33972MultipleSwitchDetectionInterfacewithsuppressedwake-upisdesignedtodetecttheclosingandopeningofupto22switchcontacts.Theswitchstatus,eitheropenorclosed,istransferredtothemicroprocessorunit(MCU

33972A

MultipleSwitchDetectionInterfacewithSuppressedWake-Up

MultipleSwitchDetectionInterfacewithSuppressedWake-up The33972MultipleSwitchDetectionInterfacewithsuppressedwake-upisdesignedtodetecttheclosingandopeningofupto22switchcontacts.Theswitchstatus,eitheropenorclosed,istransferredtothemicroprocessorunit(MCU

33972A

MultipleSwitchDetectionInterfacewithSuppressedWake-up

33972T

MultipleSwitchDetectionInterfacewithSuppressedWake-up