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STM1404CSOCQ6F 数据表(PDF) 27 Page - STMicroelectronics

部件名 STM1404CSOCQ6F
功能描述  3 V FIPS-140 security supervisor with battery switchover
PDF  35 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM1404CSOCQ6F 数据表(HTML) 27 Page - STMicroelectronics

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STM1404
DC and AC parameters
27/36
VOHB
VOH battery backup
(Vccsw)
ISOURCE = 100 µA
0.8VBAT
V
Pull-up supply voltage
(open drain)
RST, SAL, BLD, PFO
3.6
V
Power-fail comparator
VPFI
PFI input threshold
PFI falling (VCC < 3.6 V)
1.212
1.237
1.262
V
PFI hysteresis
PFI rising (VCC < 3.6 V)
10
20
mV
tPFD
PFI to PFO
propagation delay
2µs
Battery switchover
VSO
Battery backup
switchover voltage (6)(7)
Power-
down
VBAT > VSW
VSW
V
VBAT < VSW
VBAT
V
Power-up
VBAT > VSW
VSW
V
VBAT < VSW
VBAT
V
VSW
2.4
V
Hysteresis
40
mV
Battery low voltage detect
VDET
Battery detect
threshold
On power-
up only
M
2.25
2.30
2.34
V
N
2.45
2.50
2.55
V
O
3.14
3.20
3.26
V
Voltage reference (option for STM1404A)(8)
VREF
Voltage reference (see
Section 2.9: VREF,
reference voltage
output (1.237, typ) on
page 13)
0°C to 85°C
1.212
1.237
1.262
V
–40° to 0°C
1.200
1.237
1.274
V
IREF+
Source current
0°C to 85°C
15
25
µA
–40° to 0°C
10
15
µA
IREF–
Sink current
10
13
µA
Vn
Output voltage noise
f = 100 Hz to 100 kH
10-100
µVrms
Table 6.
DC and AC characteristics (continued)
Sym
Alter-
native
Description
Test condition(1)
Min
Typ
Max
Unit



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