+3V Voltage Monitoring, Low-Cost µP
Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(MAX70_P/R, MAX706AP/AR: V
CC
= 2.7V to 5.5V; MAX70_S, MAX706AS: V
CC
= 3.0V to 5.5V; MAX70_T, MAX706AT: V
CC
= 3.15V to
5.5V; T
J
= T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
J
= T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
V
OH
Output-Voltage High
(MAX706P) (MAX706AP)
V
OL
V
OH
V
OL
V
OH
Output-Voltage High
(MAX708_)
V
OL
V
OH
V
OL
WATCHDOG INPUT
Watchdog Timeout Period
t
WD
MAX706P/R, MAX706AP/AR, V
CC
= 3.0V
MAX706S/T, MAX706AS/AT, V
CC
= 3.3V
V
RST(MAX)
< V
CC
V
IL
= 0.4V
< 3.6V
4.5V < V
CC
<
V
IH
= 0.8V x V
CC
5.5V
V
RST(MAX)
< V
CC
< 3.6V
V
RST(MAX)
< V
CC
< 3.6V
V
CC
= 5.0V
V
CC
= 5.0V
WDI = 0V or V
CC
MAX706_
MAX706A_
3.5
-1.0
-5
+0.02
+1.0
+5
µA
1.00
1.00
100
ns
50
0.6
0.7 x
V
CC
0.8
V
1.60
1.60
2.25
2.25
s
CONDITIONS
V
RST(MAX)
< V
CC
< 3.6V I
SOURCE
= 215µA
V
RST(MAX)
< V
CC
< 3.6V I
SINK
= 1.2mA
4.5 < V
CC
< 5.5V
4.5V < V
CC
< 5.5V
I
SOURCE
= 800µA
I
SINK
= 3.2mA
V
CC
-
1.5
0.4
0.3
V
CC
-
1.5
0.4
V
MIN
V
CC
-
0.6
0.3
V
TYP
MAX
UNITS
MAX706P/R/S/T, MAX706AP/AR/AS/AT, MAX708R/S/T
V
RST(MAX)
< V
CC
< 3.6V I
SOURCE
= 500µA 0.8 x V
CC
V
RST(MAX)
< V
CC
< 3.6V I
SINK
= 500µA
4.5V < V
CC
< 5.5V
4.5V < V
CC
< 5.5V
I
SOURCE
= 800µA
I
SINK
= 1.2mA
WDI Pulse Width
(MAX706_, MAX706A_)
t
WP
V
IL
Watchdog Input Threshold
(MAX706_, MAX706A_)
V
IH
V
IL
V
IH
WDI Input Current
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
