stm1403ctoq6f STMicroelectronics, stm1403ctoq6f Datasheet - Page 7

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

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