MC33993DWB ,Multiple Switch Detection InterfaceFUNCTIONAL DESCRIPTION Pin Pin Name Formal Name Description1 GND Ground Ground for logic, analog, a ..
MC33993DWBR2 ,Multiple Switch Detection InterfaceFeatures DWB SUFFIX• Designed to Operate 5.5 V ≤ V ≤ 26 V CASE 1324PWR32-LEAD SOICW• Switch Input V ..
MC3399DW ,AUTOMOTIVE HALF-AMP HIGH-SIDE SWITCHfeatures of Bipolar and MOS technologies. The mixed technologyprovides higher gain PNP output devic ..
MC3399T ,AUTOMOTIVE HALF-AMP HIGH-SIDE SWITCHOrder this document by MC3399/D* ** The MC3399 is a High–Side Switch designed to drive loads from t ..
MC34001P ,JFET INPUT OPERATIONAL AMPLIFIERSOrder this document by MC34001/D** ** ** These low cost JFET input operational amplifiers combine ..
MC34002BP ,JFET INPUT OPERATIONAL AMPLIFIERSMAXIMUM RATINGSRating Symbol Value UnitSupply Voltage V , V ±18 VCC EEDifferential Input Voltage (N ..
MC74HC85N ,4-Bit Magnitude ComparatorMAXIMUM RATINGS*ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ..
MC74HC86 ,Quad 2-Input Exclusive OR GateMAXIMUM RATINGS*ÎÎÎÎÎÎ Symbol ParameterÎÎÎÎÎ ValueÎÎÎ UnitThis device contains protectioncircuitry ..
MC74HC86A ,Quad 2-Input Exclusive OR GateELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)Guaranteed LimitÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ..
MC74HC86A ,Quad 2-Input Exclusive OR Gatehttp://onsemi.com3MC74HC86At tr fVCC90%INPUT 50%TEST POINTA OR B10%GNDOUTPUTt tPLH PHLDEVICEUNDERC ..
MC74HC86AD ,Quad 2-Input Exclusive OR Gate
MC74HC86ADR2 ,Quad 2-Input Exclusive OR GateELECTRICAL CHARACTERISTICS (C = 50 pF, Input t, = t = 6 ns)L fGuaranteed LimitÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ..
MC33993DWB-MC33993DWBR2
Multiple Switch Detection Interface
MOTOROLASEMICONDUCTOR TECHNICAL DATA
Document order number: MC33993/D
Rev 2.0, 07/2003Advance Information
Multiple Switch Detection InterfaceThe 33993 Multiple Switch Detection Interface 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.
The 33993 device has two modes of operation, Sleep and Normal. The Sleep
mode provides low quiescent current and enables the wake-up features of the
device. Normal mode allows programming of the device and supplies switch
contacts with pull-up or pull-down current as it monitors switch change of state.
The 33993 is packaged in the 32-pin wide-body SOIC, reducing circuit board
area. Low quiescent current makes the 33993 ideal for automotive and industrial
products requiring low sleep state currents. The internal block diagram of the
33993 is illustrated in Figure2.
Features Designed to Operate 5.5 V ≤ VPWR ≤ 26V Switch Input Voltage Range -14 V to VPWR, 40 V Max Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol Selectable Wake-Up on Change of State Selectable Wetting Current (16 mA or 2.0 mA) 8 Programmable Inputs (Switches to Battery or Ground) 14 Switch-to-Ground Inputs
•VPWR Standby Current 100 µA Typical, VDD Standby Current 20 µA Typical Active Interrupt (INT) on Change-of-Switch State
