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| ISL705AEH Datasheet, PDF (4/19 Pages) Intersil Corporation – Rad-Hard, 5.0V/3.3V μ-Processor Supervisory Circuits | |||
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ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH, ISL706CEH
Functional Block Diagrams
VDD
POR
+- VREF
RST
VDD
MR
MR
PB
WDI
WDT
WDO
PB
WDI
POR
+- VREF
WDT
RST
VDD
MR
WDO
PB
WDI
POR
+- VREF
WDT
RST_OD
WDO
PFI
PF
PFO PFI
PF
PFO PFI
PF
PFO
+- VREF
GND
+- VREF
GND
+- VREF
GND
ISL705AEH, ISL706AEH
Timing Diagrams
VDD
VRST
1.2V
ISL705BEH, ISL706BEH
>tMR
ISL705CEH, ISL706CEH
MR
RST
RST
VDD
VRST
1.2V
tRST
tRST
tRST
<tMD
FIGURE 3. RST, RST, MR AND WDO TIMING DIAGRAM
< tWD
< tWD
< tWD
WDI
WDO
tRST
>tWP
tWD
tWD
RST
tRST
FIGURE 4. WATCHDOG TIMING DIAGRAM
4
FN8262.0
March 30, 2012
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