MC34972: MSDI with Suppressed Wake-up

The NXP® MC34972 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
32 Lead SOICW, 7.5x11.0x2.5 mm, 0.65 mm lead pitch
特性
  • Designed to operate 5.5 V <= VPWR <= 26 V
  • Switch input voltage range: -14 V to VPWR, 40 V Max
  • Interfaces directly to MPU using 3.3 V / 5.0 V SPI protocol
  • Selectable wake-up on change of state
  • Selectable wetting current (16 or 2.0 mA)
  • Eight programmable inputs (switches to supply or ground)
  • 14 switch-to-ground inputs
  • Typical standby current - VPWR = 100 µA and VDD = 20 µA
  • Active interrupt (INT) on change-of-switch state
Recommended Documentation (1)
Name/DescriptionTypeModified Date
MC34972, Multiple Switch Detection Interface with Suppressed Wake-up - Data Sheet (REV 1.0) PDF (872.8 kB) MC34972Data Sheets27 Sep 2013
Data Sheets (1)
Name/DescriptionModified Date
MC34972, Multiple Switch Detection Interface with Suppressed Wake-up - Data Sheet (REV 1.0) PDF (872.8 kB) MC3497227 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
MC34972ATEWR2ActiveSignal Conditioning, Switch MonitoringSOIC 325.5263.1 to 5.25SPI-14 to 40-40 to 85N/ASPIPulse wetting current[object Object]
MC34972ATEWActiveSignal Conditioning, Switch MonitoringSOIC 325.5263.1 to 5.25SPI-14 to 40-40 to 85N/ASPIPulse wetting current[object Object]
MC34972ATEKR2ActiveSignal Conditioning, Switch MonitoringSOIC-EP 325.5263.1 to 5.25SPI-14 to 40-40 to 85N/ASPIPulse wetting current[object Object]
MC34972ATEKActiveSignal 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 TRAYPOQ - 3360 BOXActiveMC34972ATEKMC34972ATEK.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC34972ATEKR2MC34972ATEKR2.pdf3260
SOIC 32 300ML98ARH99137AMPQ - 42 RAILPOQ - 3360 BOXActiveMC34972ATEWMC34972ATEW.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC34972ATEWR2MC34972ATEWR2.pdf3260
MC34972, Multiple Switch Detection Interface with Suppressed Wake-up - Data Sheet MC34972
SG200, Industrial Selector Guide 3Q 2015 - Selector Guide mc36xsd
98ASA00259D MC33903
MC34972ATEK.pdf MC34972
MC34972ATEKR2.pdf MC34972
98ARH99137A MC33689
MC34972ATEW.pdf MC34972
MC34972ATEWR2.pdf MC34972