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PC33975AR2 데이터시트(PDF) 10 Page - Freescale Semiconductor, Inc

부품명 PC33975AR2
상세설명  Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current
PDF  32 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PC33975AR2 데이터시트(HTML) 10 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
10
Freescale Semiconductor
33975
TIMING DIAGRAMS
TIMING DIAGRAMS
Figure 4. SPI Timing Characteristics
Figure 5. Sleep Mode to Normal Mode Operation
Figure 6. Normal Mode Interrupt Operation
tSO(dis)
0.7
VDD
0.2
VDD
0.2
VDD
0.7
VDD
0.2
VDD
tlead
tSO(en)
tSI(su) tSI(hold)
tvalid
tlag
CS
SCLK
SI
SO
MSB in
MSB out
LSB out
0.7 VDD
0.2
VDD
VPWR
VDD
WAKE
INT
CS
SGn
Power-Up
Sleep
Sleep Mode
Normal
Mode
Sleep Command
Sleep Mode
Normal
Mode
Sleep Command
Wake-Up From Interrupt
Timer Expire
Wake-Up From
Closed Switch
Command
Normal Mode
Tri-State
Command
(Disable Tri-State)
INT
CS
SGn
Switch open “0”
1
SGn Bit in SPI Word
Switch closed “1”
1
0
0
1
Switch
Command
0
on falling edge of CS
Latch switch status
Switch state change with
CS
low generates INT
Switch state change with
CS
low generates INT
Rising edge of CS does not
clear INT because state change
occurred while CS was low
Status
Switch
Command
Status
Switch
Command
Status
Switch
Command
Status
Switch
Command
Status
Switch
Command
Status



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