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)： 1/35頁(yè)
文件大?。?/td> 356K
代理商： STM1403
February 2007
Rev 4
1/35
1
STM1403
3V FIPS-140
Security supervisor with battery switchover
Features
■
STM1403 supports FIPS-140 security level 3+
– Four
high-impedance physical tamper
inputs
– Over/Under operating voltage detector
– Security alarm (SAL) on tamper detection
■
Supervisory functions
– Automatic battery switchover
– RST output (open drain)
– Manual (push-button) reset input (mr)
– Power-fail Comparator (PFI/PFO)
■
Vccsw (V
CC
switch output)
– Low when switched to V
CC
– High when switched to V
BAT
(BATT ON
indicator)
■
Battery low voltage detector (power-up)
■
Optional V
REF
(1.237V)
– (Available for STM1403A only)
■
Low battery supply current (2.8μA, typ)
■
Secure low profile 16-pin, 3x3mm,
■
QFN package
QFN16, 3mm x 3mm (Q)
Table 1.
Device options
STM704
functions
(1)
Physical
tamper
inputs
Over/Under
voltage
alarms
V
REF
(1.237V)
option
V
OUT
status,
during alarm
Vccsw status,
during alarm
STM1403A
ON
Normal Mode
(2)
STM1403B
(3)
Note
(4)
High-Z
High
STM1403C
Note
(4)
Ground
High
1.
SAL, RST, PFO, and BLD are open drain.
2.
Normal Mode: Low when V
OUT
is internally switched to V
CC
and High when V
OUT
is internally switched to battery.
Contact local ST sales office for availability.
3.
4.
Pin 9 is the V
REF
pin for STM1403A. It is the V
TPU
pin for STM1403B/C.
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