3.0V/3.3V Microprocessor Supervisory Circuits
BUFFERED RESET TO OTHER SYSTEM COMPONENTS
VCC
MAX690T/S/R
4.7k
MAX704T/S/R
MAX802T/S/R
RESET
MAX806T/S/R
GND
VCC
µP
RESET
GND
Figure 6. Interfacing to µPs with Bidirectional Reset I/O
_Typical Operating Circuits (cont.)
3.0V OR 3.3V
VCC
VOUT
VBATT
0.1µF 3.6V 0.1µF
MAX704T/S/R
MAX806T/S/R
MR
RESET
GND PFI
RAM
0.1µF
µP
100
80
VCC = 3.3V
TA = +25°C
60
40
20
0
10
100
1000
RESET COMPARATOR OVERDRIVE (VRST - VCC) (mV)
Figure 7. Maximum Transient Duration without Causing a
Reset Pulse vs. Reset Comparator Overdrive
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