STM1404BRMDQ6F [STMICROELECTRONICS]
Security Supervisor with Battery Switchover; 安全监控器，电池切换
| 型号： | STM1404BRMDQ6F |
| 厂家： | 
ST |
| 描述： | Security Supervisor with Battery Switchover |
| 文件： | 总9页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
STM1404
SUMMARY DESCRIPTION
The STM1404 family of security supervisors are a
low power family of intrusion (tamper) detection
chips targeted at manufacturers of POS terminals
and other systems, to enable them to meet phys-
ical and/or environmental intrusion monitoring
requirements as mandated by various standards,
such as Federal Information Processing Stan-
dards (FIPS) Pub 140 entitled “Security Require-
ments for Cryptographic Modules,” published by
the National Institute of Standards and Technolo-
gy, U.S. Department of Commerce), EMVCo, ISO,
ZKA, and VISA PED.
V
Pin Modes
OUT
The STM1404 is available in three versions, corre-
sponding to three modes of the V pin (Supply
Voltage Out), when the SAL (Security Alarm) is as-
serted (active-low) upon tamper detection:
OUT
STM1404A. V
when SAL is driven low (activated).
stays ON (at V
or V
)
BAT
OUT
CC
STM1404B. V is set to High-Z when SAL is
driven low (activated).
OUT
STM1404 will target the highest security level 4
and include both physical and environmental (volt-
age and temperature) monitoring.
STM1404C. V is driven to Ground when SAL
OUT
is activated (may be used when V
is connected
OUT
directly to the V
pin of the external SRAM that
CC
holds the cryptographic codes).
The STM1404 include Automatic Battery Switcho-
ver, RST Output (Open Drain), Manual (Push-but-
ton) Reset Input (MR), Power-fail Comparator
(PFI/PFO), Physical and/or Environmental
Tamper Detect/Security Alarm, and Battery Low
Voltage Detect features.
All variants (see Table 1., Device Options) are pin-
compatible and available in a security-friendly, low
profile, 16-pin QFN package.
The STM1404A also offers a V
(1.237V) as an
REF
option on pin 9. On STM1404B/C this pin is V
TPU
(internally switched V or V
).
BAT
CC
Figure 2. Logic Diagram
Table 2. Signal Names
(1)
V
Switch Output
CC
Vccsw
MR
Manual (Push-button) Reset Input
Power-fail Input
PFI
V
REF
(3)
or
V
BAT
BLD
V
CC
Independent Physical Tamper
Detect Pins 1 through 4
TP - TP
(1)
1
4
V
TPU
V
Supply Voltage Output
Active-low Reset Output
Power-fail Output
OUT
(2)
V
V
OUT
CCSW
(2)
RST
(3)
MR
PFI
RST
(2)
PFO
STM1404
(3)
(2)
PFO
SAL
Security Alarm Output
Battery Low Voltage Detect
1.237V Reference Voltage
Tamper Pull-up
SAL
(2)
(3)
BLD
TP (NH)
1
(3)
V
V
REF
TPU
(3)
V
TP
TP
TP
4
SS
2
3
(V or V
)
CC
BAT
(NL) (NH) (NL)
AI09682a
V
V
V
Back-up Supply Voltage
Supply Voltage
Ground
BAT
CC
SS
Note: See PIN DESCRIPTIONS of the full datasheet for details.
1. Normal Mode: Low when V is internally switched to
Note: 1. V
only for STM1404A; V
for STM1404B/C.
is internally switched to
REF
TPU
OUT
OUT
2. Normal Mode: Low when V
and High when V
V
and High when V
is internally switched to battery.
CC
OUT
V
is internally switched to battery.
CC
OUT
2. SAL, RST, PFO, and BLD are Open Drain.
3. V only for STM1404A; V for STM1404B/C.
3. SAL, RST, PFO, and BLD are Open Drain.
REF
TPU
2/9
STM1404
Figure 3. QFN16 Connections
(1)
(2)
V
V
CC
BLD PFI
CCSW
15
16
14
13
12
(2)
1
2
RST
V
OUT
V
MR
11
10
9
BAT
(2)
(2)
3
4
SAL
PFO
V
(3)
TPU
V
or V
SS
REF
5
6
8
7
TP
(NH)
TP
(NL)
TP
(NH)
TP
3
4
1
2
(NL)
AI09683
Note: See PIN DESCRIPTIONS of the full datasheet for details.
1. Normal Mode: Low when V is internally switched to V and High when V is internally switched to battery.
OUT
OUT
CC
2. SAL, RST, PFO, and BLD are Open Drain.
3. V only for STM1404A; V for STM1404B/C.
REF
TPU
3/9
STM1404
Figure 4. Block Diagram
V
V
CC
OUT
(1,2)
BAT54J
COMPARE
COMPARE
V
V
SO
(1)
V
V
CCSW
(3)
BAT
V
INT
RST
t
rec
Generator
RST
MR
PFI
(3)
V
V
COMPARE
PFO
PFI
COMPARE @
POWER-UP
(3)
BLD
DET
(4)
V
TPU
(4)
1.237V V
REF
Generator
V
REF
V
COMPARE
HV
V
COMPARE
LV
TP (NH)
1
TP (NL)
2
(3)
SAL
TP (NH)
3
TP (NL)
4
High Temp.
Sense
T
> T
A
H
Low Temp.
Sense
T
< T
A
L
AI09684a
Note: 1. BAT54J (from STMicroelectronics) recommended.
2. Required for battery-reverse charging protection.
3. Open Drain
4. V
only for STM1404A; V
for STM1404B/C.
REF
TPU
4/9
STM1404
TAMPER DETECTION
Physical
Supply Voltage
The internally switched supply voltage, V
There are four (4) high-impedance physical
tamper detect input pins, 2 normally set to High
(NH) and 2 normally set to Low (NL). Each input is
designed with a glitch immunity. These inputs can
be connected externally to several types of actua-
tor devices (e.g., switches, wire mesh). A tamper
on any one of the four inputs that causes its state
to change will trigger the security alarm (SAL) and
drive it to active-low. Once the tamper condition no
longer exists, the SAL will return to its normal High
state.
(ei-
INT
ther V input or V
input) is continuously mon-
CC
BAT
itored. If V
should exceed the over voltage trip
INT
point, V (set at 4.2V, typical), or should go below
HV
the under voltage trip point, V (set at 2.0v, typi-
LV
cal). SAL will be driven active-low. Once the
tamper condition no longer exists, the SAL pin will
return to its normal High state.
Temperature
The STM1404 has a built-in, bandgap-based sen-
sor to monitor the temperature. If a preset (cus-
tomer-selectable, factory-programmed) over-
TP and TP are set Normally to High (NH). They
1
3
are connected externally through a closed switch
or a high-impedance resistor to V
of STM1404A or STM1404A) or V
of STM1404B/C), A tamper condition will be de-
tected when the input pin is pulled low. If not used,
(in the case
(in the case
OUT
TPU
temperature trip point (T ) or under-temperature
H
trip point (T ) is exceeded, the SAL is asserted
L
low.
When no tamper condition exists, SAL is normally
High.
When a tamper is detected, the SAL is activated
tie the pin to V
or V
.
OUT
TPU
TP and TP are set Normally to Low (NL). They
2
4
are connected externally through a high-imped-
ance resistor or a closed switch to V . A tamper
condition will be detected when the input pin is
pulled high. If not used, tie the pin to V
(driven low), independent of the part type. V
OUT
SS
can be driven to one of three states, depending on
which variant of STM1404 is being used (see De-
vice Options, page 1):
.
SS
■
■
■
ON;
High-Z; or
Ground (V ).
SS
Note: The STM1404 must be initially powered
above V to enable the tamper detection
RST
alarms. For example, if the battery is on while V
CC
= 0V, no alarm condition can be detected until V
CC
rises above V
(and t
expires). From this
rec
RST
point on, alarms can be detected either on battery
or V . This is done to avoid false alarms when
CC
the device goes from no power to its operational
state.
5/9
STM1404
PART NUMBERING
Table 3. Ordering Information Scheme (see Figure 5., page 7 for Marking Information)
Example:
STM1404
A
T
M
D
Q
6
F
Device Type
STM1404: Over/Under Temperature Detect
V
OUT
Status (SAL = Active-Low)
A: V
B: V
C: V
= ON; Vccsw = Normal Mode
= High-Z; Vccsw = High
= Ground; Vccsw = High
OUT
OUT
OUT
Reset Threshold Voltage
T: V
= 3.00V to 3.15V
= 2.85V to 3.00V
= 2.55V to 2.70V
RST
RST
S: V
R: V
RST
Battery Low Voltage Detect Threshold (V
)
DET
M: V
= 2.3V (Typ)
= 2.5V (Typ)
= 3.2V (Typ)
DET
DET
DET
N: V
O: V
Under (TL)/Over (TH) Temperature Alarm Thresholds (STM1404 only)
B: –25/+80°C
C: –25/+85°C
D: –25/+95°C
H: –35/+80°C
I: –35/+85°C
J: –35/+95°C
Package
Q = QFN16 (3mm x 3mm)
Temperature Range
6 = –40 to 85°C
Shipping Method
F = ECOPACK Package, Tape & Reel
For other options, or for more information on any aspect of this device, please contact the ST Sales Office
nearest you.
6/9
STM1404
Figure 5. Topside Marking Information
04
XXXX(1)
YWW(2)
AI12218
Note: 1. Options codes:
X = A, B, or C (for V
)
OUT
X = T, S, or R (for Reset Threshold)
X = M, N, or O (for Battery Low Voltage Detect Threshold)
X = B, C, D, H, I, or J (for Temperature Alarm Threshold)
2. Traceability Codes
Y = Year
WW = Work Week
7/9
STM1404
REVISION HISTORY
Table 4. Document Revision History
Date
Version
1.0
Description
11-October-04
26-Nov-04
22-Dec-04
03-Feb-05
25-Feb-05
06-May-05
03-Jan-05
06-Jan-06
First Edition
1.1
Corrected footprint dimensions; update characteristics (Figure 2, 3, 4; Table 1, 2)
Update characteristics (Table 3)
1.2
1.3
Update characteristics
1.4
Update temperature trip limits (Table 3)
v2.0 of DB corresponds to v1.5 of DS
v3.0 of DB corresponds to v2.0 of DS
v4.0 of DB corresponds to v3.0 of DS
2.0
3.0
4.0
8/9
STM1404
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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9/9
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