stm1404c STMicroelectronics, stm1404c Datasheet - Page 29

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

Table 6.
1. Valid for ambient operating temperature: T
2. V
3. Tested at V
4. Guaranteed by design.
5. The leakage current measured on the RST, SAL, PFO, and BLD pins are tested with the output not asserted (output high
6. When V
7. When V
8. Maximum external capacitive load on V
9. The reset threshold tolerance is wider for V
Reset thresholds
Push-button reset input
V
t
t
Sym
MLMH
RST
MLRL
t
rec
noted); typical values are for 3.3V and 25°C.
3.6V, and V
impedance).
internal oscillation.
CC
(9)
supply current, logic input leakage, push-button reset functionality, PFI functionality, state of RST tested at V
native
Alter-
BAT
SW
t
t
MRD
MR
BAT
> V
CC
DC and AC characteristics (continued)
> V
= 3.6V. The state of RST and PFO is tested at V
CC
= 3.6V, and V
CC
> V
> V
MR to RST output
RST pulse width
Reset threshold
MR pulse width
BAT
SW
Description
, V
, V
delay
OUT
OUT
CC
remains connected to V
remains connected to V
= 0V.
REF
A
CC
pin cannot exceed 1nF.
= –40 to 85°C; V
rising than for V
Test condition
T
S
R
CC
CC
until V
until V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
= V
falling due to the 10mV (typ) hysteresis, which prevents
CC
CC
falling
falling
falling
rising
rising
rising
(1)
= V
RST
drops below V
drops below the battery voltage (V
CC
(max) to 3.6V; and V
(min). V
3.00
3.00
2.85
2.85
2.55
2.55
Min
140
100
BAT
SW
is voltage measured at the pin.
.
BAT
3.075
3.085
2.925
2.935
2.625
2.635
= 2.8V (except where
Typ
200
60
BAT
) – 75mV.
Max
3.15
3.17
3.00
3.02
2.70
2.72
280
500
BAT
=
29/36
Unit
ms
ns
ns
V
V
V
V
V
V