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| ISL705ARH Datasheet, PDF (4/15 Pages) Intersil Corporation – Rad-Hard, 5.0V/3.3V μ-Processor Supervisory Circuits | |||
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ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH, ISL706CRH
Functional Block Diagrams
VDD
RST
VDD
POR
+- VREF
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
ISL705ARH, ISL706ARH
Timing Diagrams
ISL705BRH, ISL706BRH
ISL705CRH, ISL706CRH
VDD
VRST
1.2V
>tMR
MR
RST
tRST
tRST
tRST
<tMD
RST
FIGURE 3. RST, RST, MR AND WDO TIMING DIAGRAM
VDD
VRST
1.2V
< tWD
< tWD
< tWD
WDI
WDO
tRST
>tWP
tWD
tWD
RST
tRST
FIGURE 4. WATCHDOG TIMING DIAGRAM
4
FN7662.0
September 15, 2011
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