鈻?/div>
STM1403 SUPPORTS FIPS-140 SECURITY
LEVEL 3+
鈥?4 High-Impedance Physical Tamper
Inputs
鈥?Over/Under Operating Voltage Detector
鈥?Security Alarm (SAL) on Tamper
Detection
SUPERVISORY FUNCTIONS
鈥?Automatic Battery Switchover
鈥?RST Output (Open Drain)
鈥?Manual (Push-button) Reset Input (MR)
鈥?Power-fail Comparator (PFI/PFO)
Vccsw (V
CC
SWITCH OUTPUT)
鈥?Low When Switched to V
CC
鈥?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 (2.8碌A,
typ)
SECURE LOW PROFILE 16-PIN, 3x3mm,
QFN PACKAGE
Figure 1. Package
QFN16, 3mm x 3mm (Q)
鈻?/div>
鈻?/div>
Table 1. Device Options
STM704
Functions
(1)
STM1403A
STM1403B
STM1403C
鉁?/div>
鉁?/div>
鉁?/div>
Physical
Tamper
Inputs
鉁?/div>
鉁?/div>
鉁?/div>
Over/Under Over/Under
Voltage
Temperature
Alarms
Alarms
鉁?/div>
鉁?/div>
鉁?/div>
V
REF
(1.237V)
Option
鉁?/div>
Note 3
Note 3
V
OUT
Status,
During
Alarm
ON
High-Z
Ground
Vccsw Status,
During Alarm
Normal Mode
(2)
High
High
Note: 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.
3. Pin 9 is the V
REF
pin for STM1403A. It is the V
TPU
pin for STM1403B/C.
* Contact local ST sales office for the full datasheet.
October 2005
For further information contact your local ST sales office.
Rev 4.0
1/9
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