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STM1404ASOHQ6F Datasheet(PDF) 1 Page - STMicroelectronics |
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STM1404ASOHQ6F Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 9 page 1/9 DATA BRIEFING January 2006 For further information contact your local ST sales office. STM1404 3V FIPS-140 Security Supervisor with Battery Switchover Rev 4.0 FEATURES ■ STM1404 SUPPORTS FIPS-140 SECURITY 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 ■ SUPERVISORY FUNCTIONS – Automatic Battery Switchover –RST Output (Open Drain) – Manual (Push-button) Reset Input (MR) – Power-fail Comparator (PFI/PFO) ■ Vccsw (VCC SWITCH OUTPUT) – Low When Switched to VCC – High When Switched to VBAT (BATT ON Indicator) ■ BATTERY LOW VOLTAGE DETECTOR (POWER-UP) Figure 1. Package ■ OPTIONAL VREF (1.237V) (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 Table 1. Device Options Note: 1. SAL, RST, PFO, and BLD are Open Drain. 2. Normal Mode: Low when VOUT is internally switched to VCC and High when VOUT is internally switched to battery. 3. Pin 9 is the VREF pin for STM1404A. It is the VTPU pin for STM1404B/C. QFN16, 3x3mm (Q) STM704 Functions(1) Physical Tamper Inputs Over/Under Voltage Alarms Over/Under Temperature Alarms VREF (1.237V) Option VOUT Status, During Alarm Vccsw Status, During Alarm STM1404A ✔✔ ✔ ✔ ✔ ON Normal Mode(2) STM1404B ✔✔ ✔ ✔ Note 3 High-Z High STM1404C ✔✔ ✔ ✔ Note 3 Ground High |
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