STM1404ARMBQ6F STMICROELECTRONICS [STMicroelectronics], STM1404ARMBQ6F Datasheet - Page 27

• Manufacturer Part Number: STM1404ARMBQ6F
• Description: 3 V FIPS-140 security supervisor with battery switchover
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM1404
Table 6.
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)
switchover voltage
Voltage reference (see
Pull-up supply voltage
output (1.237, typ) on
Output voltage noise
V
PFI input threshold
Section 2.9: V
propagation delay
reference voltage
OH
Battery backup
Source current
PFI hysteresis
Battery detect
Description
(open drain)
Sink current
PFI to PFO
Hysteresis
battery backup
threshold
page
(Vccsw)
V
SW
13)
REF
(6)(7)
,
On power-
PFI falling (V
PFI rising (V
(8)
Power-up
RST, SAL, BLD, PFO
up only
Power-
f = 100 Hz to 100 kH
down
I
Test condition
SOURCE
0°C to 85°C
0°C to 85°C
–40° to 0°C
–40° to 0°C
= 100 µA
CC
CC
V
V
V
V
BAT
BAT
BAT
BAT
< 3.6 V)
< 3.6 V)
M
N
O
> V
< V
> V
< V
(1)
SW
SW
SW
SW
0.8V
1.212
1.212
1.200
2.25
2.45
3.14
Min
15
10
10
BAT
10-100
1.237
1.237
1.237
DC and AC parameters
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
27/36
µA
µA
µA
µs
V
V
V
V
V
V
V
V
V
V
V
V
V
rms