STM1404BRNBQ6(2006) データシートの表示（PDF） - STMicroelectronics

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STM1404BRNBQ6
(Rev.:2006)

3V FIPS-140 Security Supervisor with Battery Switchover

STMicroelectronics 

STM1404

3V FIPS-140

Security Supervisor with Battery Switchover

DATA BRIEFING

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

QFN16, 3x3mm (Q)

■ 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

STM704

Functions(1)

Physical

Tamper

Inputs

Over/Under Over/Under

Voltage Temperature

Alarms

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

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.

January 2006

For further information contact your local ST sales office.

Rev 4.0

1/9

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