MC33993DWB Freescale Semiconductor, MC33993DWB Datasheet - Page 8

• Manufacturer Part Number: MC33993DWB
• Description: IC SWITCH I/O INTERFACE 32-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33993DWB

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 32-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8
33993
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
V
V
WAKE
INT
CS
SGn
SGn
PWR
DD
CS
INT
SGn Bit in SPI Word
.
Normal Mode
Power-Up
SCLK
CS
SO
SI
(Disable Tri-State)
Command
Tri-State
t
SO(en)
0.2 V
Command
DD
Switch
Status
0.7 V
0.2 V
Latch switch status
on falling edge of CS
1
Command
Sleep
DD
DD
t
lead
0.7 V
0.2 V
0.7 V
0.2 V
DD
DD
DD
DD
Figure 5. Sleep Mode to Normal Mode Operation
t
SI(su)
Command
MSB in
MSB out
Figure 4. 33993 SPI Timing Characteristics
Figure 6. Normal Mode Interrupt Operation
Switch
Status
Sleep Mode
0
t
SI(hold)
TIMING DIAGRAMS
Command
Switch
Status
Normal
0
Mode
Wake-Up From Interrupt
Timer Expire
Switch state change with
CS
low generates INT
Rising edge of CS does not
clear
occurred while CS was low
Switch closed “1”
Sleep Command
INT
Command
Switch
Status
because state change
t
1
valid
Sleep Mode
Analog Integrated Circuit Device Data
Command
Switch
Status
LSB out
1
t
lag
Normal
Switch state change with
CS
Mode
Wake-Up From
Closed Switch
Freescale Semiconductor
low generates INT
Switch open “0”
Sleep Command
Command
Switch
Status
0
t
SO(dis)