MC34975: MSDI with Suppressed Wake-up and 32 mA Wetting Current

The NXP® MC34975 Multiple Switch Detection Interface (MSDI) with Suppressed Wake-up is designed to detect the closing and opening of up to 22 switch contacts.

Simplified Application Drawing Block Diagram - G-30106
32SOICWEP_PROD
特性
  • Designed to operate from 5.5 V <= VPWR <= 28 V
  • Switch input voltage range: -14 V to VPWR 40 V Max
  • Interfaces to microprocessor using 3.3 V/5.0 V SPI protocol
  • Selectable wake-up on change of state
  • 14 switch-to-ground inputs
  • Eight programmable inputs (switches to supply or ground)
  • Selectable wetting current (32 mA or 4.0 mA for switch-to-ground inputs)
  • Sleep State current: VPWR 100 µA, VDD 20 µA
Recommended Documentation (1)
Name/DescriptionTypeModified Date
MC34975, Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current - Data Sheet (REV 1.0) PDF (675.0 kB) MC34975Data Sheets27 Sep 2013
Data Sheets (1)
Name/DescriptionModified Date
MC34975, Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current - Data Sheet (REV 1.0) PDF (675.0 kB) MC3497527 Sep 2013
Selector Guides (1)
Name/DescriptionModified Date
SG200, Industrial Selector Guide 3Q 2015 - Selector Guide (REV 8.0) PDF (613.2 kB) SG20027 Aug 2015
Ordering Information
ProductStatusStatusDevice FunctionBudgetary Price excluding tax(US$)Package Type and Termination CountLoad Supply Voltage (Min) (V)Load Supply Voltage (Max) (V)Supply Voltage (Min-Max) (V)Interface and Input ControlSwitch Monitoring Voltage (Min-Max) (V) (VSENSE)Ambient Operating Temperature (Min-Max) (°C)ProtectionDiagnosticsAdditional Features-AnalogADC Dynamic Range (dB)ADC SNR (dB)DAC Dynamic Range (dB)DAC SNR (dB)Frequency Band (Min-Max) (MHz)RoHS
MC34975ATEKR2ActiveSignal Conditioning, Switch MonitoringSOIC-EP 325.5263.1 to 5.25SPI-14 to 40-40 to 85N/ASPIPulse wetting current[object Object]
MC34975ATEKActiveSignal Conditioning, Switch MonitoringSOIC-EP 325.5263.1 to 5.25SPI-14 to 40-40 to 85N/ASPIPulse wetting current[object Object]
Package Information
Package DescriptionOutline VersionPackingProduct StatusPart NumberChemical ContentRoHS / Pb FreeChina RoHS LookupMSLPPT (°C)
SOIC-EP 32 7.5*11*2.398ASA00259DMPQ - 42 RAILPOQ - 3360 BOXActiveMC34975ATEKMC34975ATEK.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC34975ATEKR2MC34975ATEKR2.pdf3260
MC34975, Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current - Data Sheet MC34975
SG200, Industrial Selector Guide 3Q 2015 - Selector Guide mc36xsd
98ASA00259D MC33903
MC34975ATEK.pdf MC34975
MC34975ATEKR2.pdf MC34975