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STM1403ARMQ6F датащи(PDF) 7 Page - STMicroelectronics

номер детали STM1403ARMQ6F
подробное описание детали  3 V FIPS-140 security supervisor with battery switchover
PDF  34 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STM1403ARMQ6F датащи(HTML) 7 Page - STMicroelectronics

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STM1403
Description
7/35
Figure 1.
Logic diagram
1.
VREF only for STM1403A; VTPU for STM1403B/C.
2.
Normal mode: low when VOUT is internally switched to VCC and high when VOUT is internally switched to
battery.
3.
SAL, RST, PFO, and BLD are open drain.
Table 2.
Signal names
Note:
See Section 2: Pin descriptions on page 11 for details.
Vccsw(1)
1.
Normal mode: low when VOUT is internally switched to VCC and high when VOUT is internally switched to
battery.
VCC switch output
MR
Manual (push-button) reset input
PFI
Power-fail Input
TP1 - TP4
Independent physical tamper detect pins 1 through 4
VOUT
Supply voltage output
RST(2)
2.
SAL, RST, PFO, and BLD are open drain.
Active-low reset output
PFO(2)
Power-fail output
SAL(2)
Security alarm output
BLD(2)
Battery low voltage detect
VREF
(3)
3.
VREF only for STM1403A; VTPU for STM1403B/C.
1.237 V reference voltage
VTPU
(3)
Tamper pull-up (VCC or VBAT)
VBAT
Backup supply voltage
VCC
Supply voltage
VSS
Ground
AI09682
VCC
VBAT
STM1403
VSS
VOUT
VREF
or
VTPU
(1)
VCCSW
(2)
MR
SAL(3)
BLD(3)
PFI
TP1 (NH)
TP2
(NL)
TP3
(NH)
TP4
(NL)
PFO(3)
RST(3)



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