STM1404
3V FIPS-140
Security Supervisor with Battery Switchover
DATA BRIEFING
FEATURES
■
STM1404 SUPPORTS FIPS-140 SECURITY
Figure 1. Package
LEVEL 4
–
4 High-Impedance Physical Tamper
Inputs
–
–
Over/Under Operating Voltage Detector
Security Alarm (SAL) on Tamper
Detection
–
–
Over/Under Operating Temperature
Detector
Over/Under Temperature Thresholds are
Customer-Selectable and Factory-
Programmed
QFN16, 3x3mm (Q)
■
SUPERVISORY FUNCTIONS
–
–
–
–
Automatic Battery Switchover
RST Output (Open Drain)
Manual (Push-button) Reset Input (MR)
Power-fail Comparator (PFI/PFO)
■
OPTIONAL V
(Available for STM1404A only)
LOW BATTERY SUPPLY CURRENT (5.3µA
Typ)
SECURE LOW PROFILE 16-PIN, 3x3mm,
QFN PACKAGE
RoHS COMPLIANCE
Lead-free components compliant with the
RoHS directive
(1.237V)
REF
■
■
■
■
■
Vccsw (V SWITCH OUTPUT)
CC
–
–
Low When Switched to V
CC
High When Switched to V
Indicator)
(BATT ON
BAT
BATTERY LOW VOLTAGE DETECTOR
(POWER-UP)
Table 1. Device Options
STM704
V
V
Status,
During
Alarm
Physical
Tamper
Inputs
Over/Under Over/Under
REF
OUT
Vccsw Status,
During Alarm
Voltage
Alarms
Temperature
Alarms
(1.237V)
Option
(1)
Functions
(2)
STM1404A
■
■
■
■
■
ON
Normal Mode
STM1404B
STM1404C
■
■
■
■
■
■
■
■
Note 3
Note 3
High-Z
High
High
Ground
Note: 1. SAL, RST, PFO, and BLD are Open Drain.
2. Normal Mode: Low when V is internally switched to V and High when V is internally switched to battery.
OUT
OUT
CC
3. Pin 9 is the V
pin for STM1404A. It is the V
pin for STM1404B/C.
REF
TPU
Rev 4.0
1/9
January 2006
For further information contact your local ST sales office.