stm1403ctoq6f STMicroelectronics, stm1403ctoq6f Datasheet - Page 8
stm1403ctoq6f
Manufacturer Part Number
stm1403ctoq6f
Description
3v Fips-140 Security Supervisor With Battery Switchover
Manufacturer
STMicroelectronics
Datasheet
1.STM1403CTOQ6F.pdf
(35 pages)
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Figure 2.
See
1. Normal mode: low when V
2. SAL, RST, PFO, and BLD are open drain.
3. V
Figure 3.
1. BAT54J (from STMicroelectronics) recommended.
2. Required for battery-reverse charging protection.
3. Open drain
4. V
battery.
REF
REF
Section : Pin descriptions on page 11
only for STM1403A; V
only for STM1403; V
V CC
MR
PFI
BAT54J
V BAT (1)
QFN16 connections
Block diagram
(1,2)
TPU
OUT
RST
SAL
TPU
V
MR
for STM1403B/C.
is internally switched to V
SS
(2)
(2)
for STM1403B/C.
TP 1 (NH)
TP 2 (NL)
TP 3 (NH)
TP 4 (NL)
V INT
BLD
1
2
3
4
(NH)
16
TP 1
V SO
V RST
V PFI
V DET
5
V HV
V LV
(2)
PFI
15
TP 2
(NL)
6
COMPARE @
1.237V V REF
POWER-UP
V
COMPARE
COMPARE
COMPARE
COMPARE
COMPARE
Generator
CCSW
for details.
(NH)
14
TP 3
7
(1)
CC
V
(NL)
TP 4
13
CC
8
12
11
10
and high when V
9
V
V
PFO
V
OUT
REF or
BAT
(2)
AI09683
V
TPU
OUT
(3)
Generator
is internally switched to
t rec
AI09684
V OUT
V TPU (4)
V REF
V CCSW
RST (3)
PFO (3)
BLD (3)
SAL (3)
(4)
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