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33975 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc

Part No. 33975
Description  Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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33975 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

 
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Analog Integrated Circuit Device Data
Freescale Semiconductor
3
33975
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
Figure 2. 33975 Simplified Internal Block Diagram
+
5.0 V
125 kΩ
VDD
Analog Mux
Output
VPWR, VDD, 5.0 V
POR
Oscillator
Clock Control
Bandgap
Sleep PWR
40 µA
SPI Interface
and Control
WAKE
Control
INT
Control
Temperature
Monitor and
Control
MUX Interface
SP0
SP1
SG0
SP2
SP3
SP4
SP5
SP6
SP7
SG2
SG1
SG3
SG4
SG5
SG6
SG7
SG8
SG9
SG10
SG11
SG12
SG13
WAKE
INT
SCLK
CS
SO
AMUX
SI
VDD
VPWR
GND
VPWR
5.0 V
VPWR
5.0 V
5.0 V
VPWR
VDD
VDD
and
5.0 V
+
4.0 V
Comparator
To
VPWR
SG0
SPI
Ref
4.0
mA
32.0
mA
VPWR
5.0 V
125 kΩ
VDD
2.0
+
4.0 V
Comparator
To
VPWR
SP7
SPI
Ref
mA
4.0
mA
16.0
mA
32.0
mA
VPWR
2.0
+
4.0 V
Comparator
To
VPWR
SP0
SPI
Ref
mA
4.0
mA
16.0
mA
32.0
mA
VPWR
+
4.0 V
Comparator
To
VPWR
SG13
SPI
Ref
4.0
mA
32.0
mA
VPWR


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