STMICROELECTRONICS STM6904TZEDS6F

STM6904
Quad, ultralow voltage supervisor
with push-button reset
Preliminary Data
Features
■
Quad voltage monitoring
■
Accurate ±1.8% across temperature voltage
threshold (±1% at 25°C)
■
Primary supply (VCC) monitor. Fixed (factory programmed) reset thresholds: 3.078 V to
2.188 V
■
Second fixed (V2IN) monitor. Fixed (factoryprogrammed) reset thresholds: 2.333 V to
1.110 V
■
Two additional adjustable supply monitor
inputs (externally adjustable)
■
0.6V internal reference
■
RST output (open drain)
■
Output guaranteed for VCC ≥ 0.8 V
■
Reset delay time (trec) pin selectable
■
Manual reset input (MR)
■
Low supply current of 12 µA (typ)
■
Power supply voltage 0.8 V to 5.5 V
■
RoHS compliant (green package)
■
8-pin MSOP/TSSOP
■
Operating temperature: –40°C to 85°C
(industrial grade)
Table 1.
MSOP8
(TSSOP8) (DS)
Applications
■
Set-top boxes
■
Multi-voltage systems
■
Cable/satellite applications
■
Computer systems
■
Data storage equipment
Device summary(1)
Order code
VRST1 (V)
VRST2 (V)
tREC (ms)
Package
STM6904TZEDS6F
3.078
2.333
210
MSOP8(TSSOP8)
STM6904TWEDS6F
3.078
1.683
210
MSOP8(TSSOP8)
STM6904TGEDS6F
3.078
1.110
210
MSOP8(TSSOP8)
STM6904SYEDS6F
2.955
2.188
210
MSOP8(TSSOP8)
STM6904SFEDS6F
2.955
1.050
210
MSOP8(TSSOP8)
STM6904PWEDS6F
2.866
1.683
210
MSOP8(TSSOP8)
1.
Other reset threshold voltages and tREC time-out periods are offered. Minimum order quantities may apply. Contact local
ST sales office for availability.
January 2008
Rev 2
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/21
www.st.com
1
Contents
STM6904
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
2.1
Push-button reset input (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
VCC primary supply voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . 7
2.3
V2IN second fixed voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4
VSS
2.5
V3IN and V4IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6
RST active-low, open drain reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.7
TRSEL input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
.....................................................................7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
Setting the adjustable voltage levels for V3IN and V4IN inputs . . . . . . . . 10
3.2
Power on reset (tREC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
Voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9
Package marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2/21
STM6904
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Signal names and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TSSOP 8-lead package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Marking description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3/21
List of figures
STM6904
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
4/21
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MSOP/TSSOP-8 connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical hardware hookup application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MR timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Voltage monitoring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TSSOP8, 3 x 3mm, package mechanical outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
STM6904
1
Description
Description
The STM6904 supervisor is a low voltage/low supply current processor supervisor,
designed to monitor up to four system power supply voltages. This device is targeted at
applications such as Set-Top Boxes (STBs), portable, battery-powered systems, networking
and communication systems.
The device supports a push-button type manual reset input (MR). Two of the four supply
monitors (VCC and V2IN) have fixed (customer-selectable, factory-trimmed) thresholds
(VRST1 and VRST2). The other two voltage monitor inputs (V3IN and V4IN) are monitored
using externally adjustable threshold (0.600V internal reference) to meet specific level
requirements.
If any of the four monitored voltages drops below its factory-trimmed or adjustable
thresholds, or if the MR is asserted to logic low, the reset output RST is asserted (driven
low). Once asserted, RST is maintained Low for a minimum delay period (trec) after ALL
monitored supplies rise above their respective thresholds and MR returns to High. This
device is in the correct reset output logic state when VCC greater than 0.8V.
The STM6904 is available in a standard 8-lead MSOP (TSSOP) package.
Figure 1.
Logic diagram
VCC
V2IN
V3IN
V4IN
RST
STM6904
MR
TRSEL
VSS
ai13976
Figure 2.
MSOP/TSSOP-8 connections
MR
1
8
RST
VCC
2
7
TRSEL
V2IN
3
6
V4IN
VSS
4
5
V3IN
ai13977
5/21
Description
STM6904
Table 2.
6/21
Signal names and functions
Pin
Name
Type
1
MR
Input
2
VCC
Supply
3
V2IN
Input
4
VSS
Supply
5
V3IN
Input
Adjustable third reset comparator input
6
V4IN
Input
Adjustable fourth reset comparator input
Controls selectable tREC. Two tREC options available.
If pin is tied HIGH (VCC), tREC = 420ms
If pin is tied LOW (VSS), tREC = 210ms
Note: Pin must be tied to VCC or VSS (Do not float)
7
TRSEL
Input
8
RST
Output
Function
Active-low manual reset input with internal pull-up resistor
Primary supply voltage input and integrated fixed threshold undervoltage monitor
Second fixed threshold input monitor
Ground
Active-low open-drain reset output (10k ohm internal pull-up)
STM6904
Pin descriptions
2
Pin descriptions
2.1
Push-button reset input (MR)
When MR goes low the RST output is driven low, RST remains low as long as MR is low and
for tREC after MR returns to high. The active-low input has an internal 10k ohm pull-up
resistor to VCC. It can be driven from a TTL or CMOS logic line, or with open drain/collector
outputs, or connected to VSS through a switch. If unused, leave this pin open or connect it to
VCC.
Connect a normally open momentary switch from MR to VSS; external debounce circuitry is
not required. (If MR is driven from long cables or if the device is used in noisy environments,
connecting a 0.1 uF capacitor from MR to VSS provides additional noise immunity).
2.2
VCC primary supply voltage monitoring input
The VCC pin is also the input for the primary reset threshold monitor. Fixed (customerselectable, factory programmed) reset thresholds include 3.078 V to 2.866 V.
2.3
V2IN second fixed voltage monitoring input
The V2IN input is the second fixed-voltage input for reset threshold monitoring. Available
fixed (customer-selectable, factory programmed) reset thresholds include 2.333 V to
1.050 V.
2.4
VSS
This pin is the ground pin for the power supply.
2.5
V3IN and V4IN
The V3IN and V4IN are high impedance inputs. RST is driven low when the voltage (VTRIP)
at the pin falls below 600 mV (internal reference voltage at their respective comparators).
The monitored voltage reset threshold is set with an external resistor-divider network.
2.6
RST active-low, open drain reset output
The reset output (RST) pin is driven low and stays low whenever VCC or V2IN, or V3IN, or
V4IN falls below its factory-trimmed or adjustable reset threshold or when MR goes to logic
low. It remains low for trec after all supply voltages being monitored rise above their reset
thresholds and MR goes from low to high. Connect an external pull-up resistor to VCC. A
10k ohms pull-up resistor should be sufficient for most applications.
7/21
Pin descriptions
2.7
STM6904
TRSEL input
Allows user to select between two values of tREC timing (210 ms or 420 ms). Pin must be
tied to VSS (210 ms) or VCC (420 ms).
Figure 3.
Functional block diagram
VCC
VRST1
COMPARE
VRST2
COMPARE
V2IN
V3IN
VREF= 0.6V
COMPARE
VREF= 0.6V
COMPARE
trec
Generator
RST
V4IN
VCC
(1)
MR
TR
SEL
ai13978
1. Internal pull-up on MR input of 10k ohm (typ).
8/21
STM6904
Figure 4.
Pin descriptions
Typical hardware hookup application diagram
From DC/DC Converter
VCC2
VTRIP = (600mV)
VTRIP = (600mV)
( R1R2+ R2 )
( R3R4+ R4 )
VCC1
VCC
0.1 F
STM6904
VIN2
VCC3
0.1 F
RST
RST (To Processor Reset)
R1
VIN3
VCC4
R2
R3
MR
VIN4
R4
Push-button
Switch
VCC
(1)
TRSEL
VSS
ai13979
1. TRSEL must be tied to VCC (trec = 420 ms) or to VSS (trec = 210 ms).
9/21
Operation
3
STM6904
Operation
The STM6904 provides the ability to monitor critical voltages such as power-supply and
battery voltage levels, while interfacing easily to the system controllers/microprocessors.
Figure 4 shows typical hardware hookup for monitoring four voltages; two fixed thresholds
(customer-selectable, factory-programmed ) and two adjustable monitor inputs. RST output
is open drain and requires a 10k ohms pull-up resistor tied to VCC.
3.1
Setting the adjustable voltage levels for V3IN and V4IN inputs
The user can customize the minimum voltage levels for the two adjustable voltage inputs by
connecting an external resistor divider network to the V3IN and V4IN pins in order to set the
trip point at some voltage above the 600 mv (VREF) according to the following formula:
VTRIP = 0.6V ×
R1 + R 2
R2
During normal operation, the STM6904 monitors the voltage levels at all four pins (VCC,
V2IN, V3IN, and V4IN).
3.2
Power on reset (tREC)
On power up, the STM6904 activates a power on reset circuit which asserts the reset pin
(i.e. RST goes low). The RST signal remains active until VCC (and V2IN, V3IN, V4IN and
MR) rises above the minimum voltage level for the time period tREC thereby ensuring that
the supply voltage has stabilized to sufficient operating levels.
10/21
STM6904
Voltage monitoring
4
Voltage monitoring
Figure 5.
MR timing waveforms
tMLMH
MR
tMLMR
RST
tREC
ai13974
Figure 6.
Voltage monitoring diagram
VCC, VXIN
VRST1/2,
VRSTIN
tRD
trec
RST
ai13975
11/21
Maximum rating
5
STM6904
Maximum rating
Stressing the device above the rating listed in the "Absolute maximum ratings" table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 3.
Absolute maximum ratings
Symbol
TSTG
TSLD(1)
1.
12/21
Parameter
Storage temperature (VCC off)
Lead solder temperature for 10 seconds
Value
Unit
-55 to +150
°C
260
°C
-0.3 to VCC +0.3
V
VIO
Input or output voltage
VCC
Supply voltage
-0.3 to 7.0
V
IO
Output current
20
mA
θJA
Thermal resistance (junction to ambient)
146
°C/W
Reflow at peak temperature of 255°C to 260°C for < 30 seconds (total thermal budget not to exceed 180°C
for between 90 to 150 seconds).
STM6904
6
DC and AC parameters
DC and AC parameters
This section summarizes the operating measurement conditions and the DC and AC
characteristics of the device. Designers should check that the operating conditions in their
circuit match the operating conditions when relying on the quoted parameters.
Table 4.
Sym
DC and AC characteristics
Alternative
Description
VCC
Operating voltage
ICC
VCC supply current
I2IN
V2IN supply curent
ILI
ILO(3)
Min
Typ
0.8
Max
Unit
5.5
V
VCC < 5.5 V
10
14
VCC = 3.3 V
9
13
V2IN = 3.3 V
3
5
µA
Input leakage current (MR)(2)
VIN = VSS
500
800
µA
Input leakage current (TRSEL)
VIN = VSS or VCC
-0.5
+0.5
µA
Open drain RST output
leakage current
VCC > VRST;
RST not asserted
-0.5
+0.5
µA
VCC ≥ 0.8V, ISINK = 1µA
0.3
V
VCC ≥ 1.0V, ISINK = 50µA
0.3
V
VCC ≥ 1.2V, ISINK = 100µA
0.3
V
VCC ≥ 2.7V, ISINK = 1.2mA
0.3
V
VCC ≥ 4.5V, ISINK = 3.2mA
0.4
V
3.109
V
Output low voltage
(RST; open drain)
VOL
Test condition(1)
µA
25°C
3.047
-40°C to 85°C
3.023
25°C
2.925
-40°C to 85°C
2.902
25°C
2.837
-40°C to 85°C
2.814
3.078
T (falling)
VRST1(4)
VTH1
VCC reset threshold
3.133
2.955
2.985
V
S (falling)
3.008
2.866
2.895
V
P (falling)
2.918
13/21
DC and AC parameters
Table 4.
Sym
STM6904
DC and AC characteristics (continued)
Alternative
Description
Test condition(1)
Min
Typ
Max
Unit
25°C
2.310
2.333
2.356
V
-40°C to 85°C
2.291
25°C
2.166
-40°C to 85°C
2.149
25°C
1.666
-40°C to 85°C
1.653
25°C
1.099
-40°C to 85°C
1.090
25°C
1.040
-40°C to 85°C
1.031
Z (falling)
2.375
2.188
2.210
V
Y (falling)
VRST2(4)
VTH2
V2IN reset threshold
2.227
1.683
1.700
V
W (falling)
1.713
1.110
1.121
V
G (falling)
1.130
1.050
1.061
V
F (falling)
Reset threshold
hysteresis
VHYST
tRD
tREC(5)
VCC to RST delay
tRP
RST time-out period
1.069
Referenced to VRST1/VRST2
typical
0.5
%
VCC = (VRST1 + 100 mV) to
(VRST1 – 100 mV)
20
µs
V2IN = (VRST2 + 75 mV) to
(VRST2 – 75 mV)
20
µs
TRSEL = LOW (VSS)
140
210
280
ms
TRSEL = HIGH (VCC)
280
420
560
ms
589
600
611
mV
+25
nA
Adjustable reset comparator input (V3IN and V4IN)
V3IN, V4IN input
threshold
VRSTIN
I3IN,
I4IN
V3IN, V4IN input current
tRSTIND
V3IN, V4IN > 0.8 V
-25
V3IN, V4IN hysteresis
3
mV
V3IN, V4IN to RST output
VRSTIN to (VRSTIN – 30 mV)
delay
22
µs
Manual (push-button) reset input
VIL
VIH
tMLMH
tMR
MR minimum pulse width
tMLRL
tMRD
MR to RST output delay
14/21
0.3 x VCC
MR input voltage
V
0.7 x VCC
V
1
µs
200
ns
STM6904
Table 4.
Sym
DC and AC parameters
DC and AC characteristics (continued)
Alternative
Description
Test condition(1)
Min
Typ
Max
Unit
MR glitch immunity
100
ns
MR pull-up resistance
10
kΩ
1. Valid for ambient operating temperature: TA = –40°C to +85°C; VCC = 0.8V to 5.5V (except where noted).
2. 10k ohm (typ) internal pull-up resistor.
3. The leakage current measured on the RST pin is tested with the reset de-asserted (output high impedance).
4. Other reset threshold voltages are offered. Minimum order quantities may apply. Contact local sales office for availability.
5. Other tREC time-out periods are offered. Minimum order quantities may apply. Contact local sales office for availability.
15/21
Package mechanical data
7
STM6904
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 7.
TSSOP8, 3 x 3mm, package mechanical outline
D
8
5
c
E1
1
E
4
k
A1
A
L
L2
A2
L1
ccc
b
e
E3_ME
16/21
STM6904
Package mechanical data
Table 5.
TSSOP 8-lead package mechanical data
mm
inches
Symbol
Min
Typ
A
Min
Typ
1.10
A1
0.00
A2
0.75
b
c
Max
0.043
0.15
0.000
0.95
0.030
0.22
0.40
0.009
0.016
0.08
0.23
0.003
0.009
0.85
ccc
D
Max
0.006
0.034
0.10
2.80
e
3.00
3.20
0.037
0.004
0.110
0.65
0.118
0.126
0.026
E
4.65
4.90
5.15
0.183
0.193
0.203
E1
2.80
3.00
3.10
0.110
0.118
0.122
L
0.40
0.60
0.80
0.016
0.024
0.032
L1
0.95
0.037
L2
0.25
0.010
k
N
0°
4
8
6°
0°
4
6°
8
17/21
Part numbering
8
STM6904
Part numbering
Table 6.
Ordering information scheme
Example:
STM6904
TZ
E
DS
6
Device type
STM6904
Reset threshold voltages(1)
Suffix
VRST1
VRST2
TZ
3.078
2.333
TW
3.078
1.683
TG
3.078
1.110
SY
2.955
2.188
SF
2.955
1.050
PW
2.866
1.683
tREC(1)
E = 210ms or 420ms
Package
DS = MSOP8 (TSSOP8)
Temperature range
6: -40°C to 85°C
Shipping method
E = ECOPACK® package, tubes
F = ECOPACK® package, tape & reel
1. Other reset threshold voltages and tREC time-out periods are offered. Minimum order quantities may
apply. Contact local sales office for availability.
18/21
F
STM6904
Package marking information
9
Package marking information
Table 7.
Marking description
Part marking
VRST1 (V)
VRST2 (V)
Package
Topside marking
STM6904TZEDS6F
3.078
2.333
MSOP (TSSOP8)
STZ4
STM6904TWEDS6F
3.078
1.683
MSOP (TSSOP8)
STW4
STM6904TGEDS6F
3.078
1.110
MSOP (TSSOP8)
STG4
STM6904SFEDS6F
2.955
1.050
MSOP (TSSOP8)
SSF4
STM6904SYEDS6F
2.955
2.188
MSOP (TSSOP8)
SSY4
STM6904PWEDS6F
2.866
1.683
MSOP (TSSOP8)
SPW4
19/21
Revision history
10
STM6904
Revision history
Table 8.
20/21
Document revision history
Date
Revision
Changes
19-Dec-2007
1
Initial release.
28-Jan-2008
2
Updated cover page, Figure 6 and Table 4.
STM6904
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2008 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
21/21