STM804 STMICROELECTRONICS [STMicroelectronics], STM804 Datasheet - Page 23

• Manufacturer Part Number: STM804
• Description: 3V Supervisor with Battery Switchover
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 37. Watchdog Timing
Table 7. DC and AC Characteristics
V
I
V
V
Sym
BAT
V
BAT
I
OUT1
OUT2
V
I
V
I
CC
LO
CC
LI
IH
IL
(4)
(2)
,
V
RST
WDI
native
V
Alter-
V
CC
BAT
CC
to V
to V
Operating Voltage
V
V
Battery Back-up Mode
V
Battery Back-up Mode
V
V
Back-up)
Input Leakage Current (MR)
Input Leakage Current (PFI)
Input Leakage Current (WDI)
Output Leakage Current
Input High Voltage (MR, WDI)
Input Low Voltage (MR, WDI)
OUT
OUT
CC
CC
BAT
OUT
OUT
Supply Current
Supply Current in
On-resistance
On-resistance
Supply Current in
Voltage (Active)
Voltage (Battery
Description
trec
Excluding I
Excluding I
I
OUT2
I
V
V
OUT2
V
RST
RST
CC
MR = 0V; V
T
STM704/806 only;
STM804/805/795;
Test Condition
0V = V
A
= 250µA, V
0V = V
0V = V
I
Excluding I
Excluding I
I
I
OUT1
= 2.0V, MR = V
OUT1
= 1mA, V
(max) < V
(max) < V
(V
V
(V
OUT1
= –40 to +85°C
CC
BAT
BAT
OUT
OUT
> 2.5V
IN
= 250µA,
= 5mA
= 75mA
IN
IN
= 3.6V)
= 2.3V,
= V
(V
(V
= V
= V
CC
BAT
CC
CC
BAT
CC
CC
OUT
OUT
CC
(5)
= 3V
CC
CC
(5)
< 5.5V
< 5.5V
= 2.3V
(6)
(1)
< 5.5V)
< 3.6V)
= 2.3V
CC
STM690/704/795/802/804/805/806
)
tWD
0.7V
0.0015
V
V
V
V
1.1
0.03
Min
–25
BAT
0.3
0.1
CC
CC
CC
20
–1
–1
(3)
CC
–
–
–
–
0.0006
V
V
V
V
V
0.015
0.034
0.15
0.14
Typ
BAT
BAT
100
0.4
CC
CC
CC
40
35
25
75
3
2
–
–
–
–
–
AI07891
0.3V
Max
350
+25
5.5
1.0
60
50
35
+1
+1
4
CC
Unit
23/31
µA
µA
µA
µA
µA
nA
µA
µA
V
V
V
V
V
V
V
V