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