stm1404c STMicroelectronics, stm1404c Datasheet - Page 28

• Manufacturer Part Number: stm1404c
• Description: Security Supervisor With Battery Switchover
• Manufacturer: STMicroelectronics

Table 6.
28/36
Power-fail comparator
Battery switchover
Battery low voltage detect
Voltage reference (option for STM1404A)
V
V
V
I
I
Sym
V
t
V
REF+
REF–
PFD
OHB
V
DET
REF
PFI
SO
n
native
Alter-
DC and AC characteristics (continued)
Voltage reference (see
Pull-up supply voltage
output (1.237, typ) on
Output voltage noise
V
PFI input threshold
switchover voltage
Reference voltage
propagation delay
OH
Battery back-up
Section : V
Source current
PFI hysteresis
Battery detect
Description
(open drain)
Sink current
PFI to PFO
battery back-up
Hysteresis
threshold
page
(Vccsw)
(6)(7)
V
SW
13)
REF
,
On power-
(8)
PFI falling (V
Power-up
PFI rising (V
RST, SAL, BLD, PFO
up only
Power-
down
f = 100Hz to 100kH
I
Test condition
SOURCE
0°C to 85°C
0°C to 85°C
–40° to 0°C
–40° to 0°C
= 100µA,
CC
V
V
V
V
CC
BAT
BAT
BAT
BAT
< 3.6V)
< 3.6V)
M
O
N
> V
< V
> V
< V
(1)
SW
SW
SW
SW
0.8V
1.212
1.212
1.200
2.25
2.45
3.14
Min
10
15
10
BAT
10-100
1.237
1.237
1.237
V
V
V
V
2.30
2.50
3.20
Typ
2.4
10
40
25
15
13
BAT
BAT
SW
SW
2
1.262
1.262
1.274
Max
2.34
2.55
3.26
3.6
20
µV
Unit
mV
mV
µA
µA
µA
µs
V
V
V
V
V
V
V
V
V
V
V
V
V
s
rm