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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 7/35頁(yè) |
| 文件大?。?/td> | 356K |
| 代理商： | STM1403 |
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STM1403
Summary description
7/35
Figure 1.
Logic diagram
1.
2.
V
REF
only for STM1403A; V
TPU
for STM1403B/C.
Normal mode: low when V
OUT
is internally switched to V
CC
and high when V
OUT
is internally switched to
battery.
SAL, RST, PFO, and BLD are open drain.
3.
Table 2.
Vccsw
(1)
MR
PFI
TP
1
- TP
4
V
OUT
RST
(2)
PFO
(2)
SAL
(2)
BLD
(2)
V
REF(3)
Signal names
Note:
See
Section : Pin descriptions on page 11
for details.
1.
Normal mode: low when V
OUT
is internally switched to V
CC
and high when V
OUT
is internally switched to battery.
V
CC
switch output
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
CC
or V
BAT
)
Back-up supply voltage
Supply voltage
Ground
2.
SAL, RST, PFO, and BLD are open drain.
3.
V
REF
only for STM1403A; V
TPU
for STM1403B/C.
V
TPU(3)
V
BAT
V
CC
V
SS
AI09682
V
CC
V
BAT
STM1403
V
SS
V
OUT
V
REF
V
TPU(1)
V
CCSW(2)
MR
SAL
(3)
BLD
(3)
PFI
TP1 (NH)
TP2
(NL)
TP3
(NH)
TP4
(NL)
PFO
(3)
RST
(3)
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