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參數(shù)資料
| 型號： | STM1403 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Security Supervisor with Battery Switchover(帶電池轉(zhuǎn)換功能的安全監(jiān)控器) |
| 中文描述： | 安全監(jiān)控與電池切換（帶電池轉(zhuǎn)換功能的安全監(jiān)控器） |
| 文件頁數(shù)： | 9/35頁 |
| 文件大?。?/td> | 356K |
| 代理商： | STM1403 |
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STM1403
Summary description
9/35
Figure 4.
Hardware hookup
1.
Normal mode: low when V
OUT
is internally switched to V
CC
and high when V
OUT
is internally switched to
battery.
Capacitor (C) is typically
≥
10μF.
Open drain
Diode is required for battery reverse charge protection.
V
REF
only for STM1403; V
TPU
for STM1403B/C.
2.
3.
4.
5.
Figure 5.
Tamper Pin (TP
1
or TP
3
) Normally High (NH) external hookup (switch
closed)
1.
R typical is 10M
Ω
. Resistors must be protected against conductive materials.
VCC
AI09690
VCC
MR
VOUT
VREF(5)
or
VTPU
VCCSW(1)
VCC
LPSRAM
PFI
C(2)
0.1
μ
F
1.0
μ
F
STM1403
PFO(3)
RST(3)
BLD(3)
To Microprocessor Reset
Unregulated
Voltage
Regulator
VCC
VIN
R1
R2
Push-Button
From Actuator Device
(e.g., Switches, Wire Mesh)
BAT54J(4)
VBAT
TP1
TP2
TP3
TP4
To Microprocessor NMI
To Microprocessor
SAL(3)
To Physical Tamper Pins TPX
To ADC
AI09698
VOUT (or
VTPU (STM1403B/C)
R(1)
TaSwitch Normally Closed;
TP1 or TP3
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