stm1403ctoq6f STMicroelectronics, stm1403ctoq6f Datasheet - Page 9

• Manufacturer Part Number: stm1403ctoq6f
• Description: 3v Fips-140 Security Supervisor With Battery Switchover
• Manufacturer: STMicroelectronics

Figure 4.
1. Normal mode: low when V
2. Capacitor (C) is typically ≥ 10µF.
3. Open drain
4. Diode is required for battery reverse charge protection.
5. V
Figure 5.
1. R typical is 10MΩ. Resistors must be protected against conductive materials.
battery.
REF
only for STM1403; V
Unregulated
Hardware hookup
Tamper Pin (TP
closed)
Voltage
(e.g., Switches, Wire Mesh)
R1
R2
From Actuator Device
TPU
OUT
V IN
Regulator
for STM1403B/C.
is internally switched to V
Tamper Detection on Open
Push-Button
1
Switch Normally Closed;
V CC
0.1μF
or TP
BAT54J (4)
1.0μF
3
) Normally High (NH) external hookup (switch
V TPU (STM1403B/C)
V OUT (STM1403A)
V CC
PFI
MR
V BAT
TP 1
TP 2
TP 3
TP 4
V CCSW (1)
STM1403
or
V REF
CC
R (1)
V TPU
PFO (3)
RST (3)
BLD (3)
SAL (3)
V OUT
or
and high when V
(5)
TP 1 or TP 3
AI09698
To Microprocessor NMI
To Microprocessor Reset
To Microprocessor
To ADC
To Physical Tamper Pins TP X
C
(2)
OUT
V CC
is internally switched to
LPSRAM
V CC
AI09690
9/35