Microchip C2102EMB713 Voltage detector Datasheet

TC54
Voltage Detector
Features
General Description
• ±2.0% Detection Thresholds
• Small Packages: 3-Pin SOT-23A, SOT-89, and
TO-92
• Low Current Drain: 1 µA, typical
• Wide Detection Range: 1.1V to 6.0V
• Wide Operating Voltage Range: 0.7V to 10V
The TC54 series are CMOS voltage detectors that are
especially well suited for battery-powered applications
because of their extremely low 1 µA operating current
and small surface-mount packaging. Each part is lasertrimmed to the desired threshold voltage, which can be
specified from 1.4V to 6.0V with a 2% tolerance.
The TC54 is available with either an open-drain or complementary output stage. During operation, the output
(VOUT) remains in the logic-high state as long as VIN is
greater than the specified threshold voltage (VDET –).
When VIN falls below VDET –, the output is driven to a
logic-low. VOUT remains low until VIN rises above
VDET – by an amount VHYST, when it resets to a logichigh state.
Applications
•
•
•
•
•
Battery Voltage Monitoring
Microprocessor Reset
System Brown-Out Protection
Switching Circuit in Battery Backup
Level Discriminator
Package Types
Functional Block Diagram
TC54VC only
3-Pin SOT-23A
VIN
3-Pin SOT-89
VIN
3
VIN
TC54
TC54
VOUT
–
1
VOUT
+
2
VSS
1
2
3
VOUT VIN VSS
3-Pin TO-92
VREF
123
VSS
TC54VN has open-drain output.
TC54VC has complementary (push-pull) output.
VOUT VIN VSS
Note:
3-Pin SOT-23A is equivalent to the
EIAJ SC-59.
Device Features
Output
Reset Delay
Std. Trip Points(1) (typical)
Active Low
No
1.4V, 2.1V, 2.7V, 2.9V
Active Low
No
3.0V, 4.2V, 4.3V
Device
Type
State
TC54VN
Open-Drain
TC54VC
Push-Pull
Note 1:
Custom Trip Points available. Minimum order requirement. Information available upon request.
 2001-2011 Microchip Technology Inc.
DS21434J-page 1
TC54
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Input Voltage ...................................................................+12V
† Notice: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only and functional operation of the
device at these or any other conditions above those indicated
in the operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
Output Current ..............................................................50 mA
Output Voltage: CMOS................(VSS – 0.3V) to (VIN + 0.3V)
Open-Drain.....................(VSS – 0.3V) to 12V
Power Dissipation (TA  70°C):
3-Pin SOT-23A .......................................................240 mW
3-Pin SOT-89..........................................................500 mW
3-Pin TO-92 ............................................................300 mW
Operating Temperature Range........................-40°C to +85°C
Storage Temperature Range .........................-65°C to +150°C
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, TA = +25°C.
Parameter
Operating Voltage
Quiescent Current
Threshold Voltage
(Note 1)
Hysteresis Voltage
Output Current
Tempco of (VDET –)
Delay Time
Note 1:
Sym
Min
Typ
Max
Units
VIN
0.7
—
10.0
V
(VDET –)  1.6V
0.7
—
6.0
V
(VDET –) < 1.6V
—
0.8
2.7
µA
VIN = 2.0V
—
0.9
3.0
VIN = 3.0V
—
1.0
3.2
VIN = 4.0V
ISS
VDET –
VHYST
IOUT
Test Conditions
—
1.1
3.6
1.37
1.4
1.43
VIN = 5.0V
2.06
2.1
2.14
TC54VX21
2.65
2.7
2.75
TC54VX27
2.84
2.9
2.96
TC54VX29
2.94
3.0
3.06
TC54VX30
4.12
4.2
4.28
TC54VX42
4.21
4.3
4.39
TC54VX43
V
mV
TC54VX14
28
70
112
42
105
168
VDET = 2.1V (typical)
VDET = 1.4V (typical)
54
135
216
VDET = 2.7V (typical)
58
145
232
VDET = 2.9V (typical)
60
150
240
VDET = 3.0V (typical)
84
210
336
VDET = 4.2V (typical)
86
215
344
3.0
7.7
—
5.0
10.1
—
VOL = 0.5V, VIN = 3.0V
6.0
11.5
—
VOL = 0.5V, VIN = 4.0V
VOL = 0.5V, VIN = 5.0V
7.0
13.0
—
—
-10.0
-2.0
TC (VDET –)
—
±100
—
tDLY
—
—
0.2
VDET = 4.3V (typical)
mA
VOL = 0.5V, VIN = 2.0V
TC54VC Only:
VOH = VIN – 2.1V, VIN = 8.0V
ppm/°C -40°C  TA  85°C
ms
VDET –  VOUT inversion
For other voltage options, please contact your regional Microchip sales office.
DS21434J-page 2
 2001-2011 Microchip Technology Inc.
TC54
TEMPERATURE SPECIFICATIONS
Electrical Characteristics: Unless otherwise indicated, all limits are specified for: VDD =+1.8V to +5.5V, VSS =GND.
Parameters
Sym
Min
Typ
Max
Units
Operating Temperature Range
TA
-40
—
+85
°C
Storage Temperature Range
TA
-65
—
+150
°C
Thermal Resistance, 3L-SOT-23A
JA
—
308
—
°C/W
Thermal Resistance, 3L-SOT-89
JA
—
131.7
—
°C/W
Thermal Resistance, 3L-TO-92
JA
—
146
—
°C/W
Conditions
Temperature Ranges
Thermal Package Resistances
VDET –+VHYST
VDET
VDD
tDLY
OUTPUT
FIGURE 1-1:
VOH
Timing Diagram.
 2001-2011 Microchip Technology Inc.
DS21434J-page 3
TC54
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
TC54
Symbol
2.1
SOT-89
TO-92
1
1
1
VOUT
Digital Output
3
2
2
VIN
Analog Input
2
3
3
VSS
Ground Terminal
—
Tab
—
VIN
Analog Input
Digital Output (VOUT)
VOUT goes low when VIN drops below VDET – and
returns high when VIN rises above VDET – + VHYST.
(See Figure 3-1).
2.2
Description
SOT-23A
2.3
Ground Terminal (VSS)
VSS provides the negative reference for the analog
input voltage. Typically, the circuit ground is used.
Analog Input (VIN)
VIN can be used for power supply monitoring or a
voltage level that requires monitoring.
DS21434J-page 4
 2001-2011 Microchip Technology Inc.
TC54
3.0
DETAILED DESCRIPTION
In normal steady-state operation when VIN > VDET –,
the output will be at a logic-high (see Figure 3-1). In the
case of the TC54VN, this is an open-drain condition. If
the input falls below VDET –, the output will pull down
(Logic 0) to VSS. Generally, VOUT can pull down to
within 0.5V of VSS at rated output current and input
voltage.
(See
Section 1.0
“Electrical
Characteristics”).
VIN
The output (VOUT) will stay valid until the input voltage
falls below the minimum operating voltage (VINMIN) of
0.7V. Below this minimum operating voltage, the output
is undefined. During power-up (or anytime VIN has
fallen below VINMIN), VOUT will remain undefined until
VIN rises above VINMIN. When this occurs, the output
will become valid. VOUT will be in its Active-low state,
while VINMIN < VIN < VDET+ (therefore, VDET + = VDET –
+ VHYST). If the input rises above VDET+, the output will
assume its Inactive state (high for TC54VC, open-drain
for TC54VN).
VDET +
VHYST
Release Voltage
or RESET Voltage
Detect Voltage VDET –
Minimum Operating
Voltage
Ground Level
VOUT
Output Voltage
Ground Level
FIGURE 3-1:
Timing Diagram.
 2001-2011 Microchip Technology Inc.
DS21434J-page 5
TC54
4.0
APPLICATIONS INFORMATION
4.1
Modifying the Trip Point, VDET –
Although the TC54 has a pre-programmed VDET –, it is
sometimes necessary to make adjustments during prototyping. This can be accomplished by connecting an
external resistor divider to a TC54, which has a VDET –
lower than that of VSOURCE (Figure 4-1).
To maintain detector accuracy, the bleeder current
through the divider should be significantly higher than
the 1 µA operating current required by the TC54. A reasonable value for this bleeder current is 100 µA (100
times the 1 µA required by the TC54). For example, if
VDET – = 2V and the desired trip point is 2.5V, the value
of R1 + R2 is 25 k (2.5V/100 µA). The value of
R1 + R2 can be rounded to the nearest standard value
and plugged into the equation of Figure 4-1 to calculate
values for R1 and R2. 1% tolerance resistors are
recommended.
4.2
Other Applications
Low operating power and small physical size make the
TC54 series ideal for many voltage detector applications, such as those shown in Figures 4-2, 4-3 and 4-4.
Figure 4-2 shows a low-voltage gate drive protection
circuit that prevents the overheating of the logic-level
MOSFET due to insufficient gate voltage. When the
input signal is below the threshold of the TC54VN, its
output grounds the gate of the MOSFET. Figures 4-3
and 4-4 show the TC54 in conventional voltage
monitoring applications.
4.3V
270
VCC
VIN
RL
VOUT
TC54VX
VSOURCE
MTP3055EL
VSS
R2
VIN
R1
TC54
VOUT
VSS
FIGURE 4-2:
Protection.
MOSFET Low Drive
+
VIN
–
TC54VX
VSOURCE

VOUT
R
1
--------------------- = V
DET R +R
1
2
BATLOW
VSS
Where:
VSOURCE = Voltage to be monitored
VDET – = Threshold Voltage setting of TC54
Note:
FIGURE 4-3:
Battery Voltage Monitor.
In this example, VSOURCE must be
greater than (VDET –)
VIN
FIGURE 4-1:
Modify Trip-Point of the
TC54 using External Resistor Divider.
+
Pwr
Sply
TC54VX
VOUT
Power Good
–
VSS
FIGURE 4-4:
DS21434J-page 6
Power Good Monitor.
 2001-2011 Microchip Technology Inc.
TC54
5.0
PACKAGING INFORMATION
5.1
Package Marking Information
3-Lead SOT-23A
Example
XN3X
3-Lead SOT-89
Example
XXXYYWW
NNN
3-Lead TO-92
e3
*
Note:
E3
31
Example
XXXXXX
XXXXXX
XXXXXX
YWWNNN
Legend: XX...X
Y
YY
WW
NNN
C302
54VN
3002
1256
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
 2001-2011 Microchip Technology Inc.
DS21434J-page 7
TC54
3-Pin SOT-23A
3-Pin TO-92
3-Pin SOT-89
2
4
1 2 3 4
1
2
3
4
1
5 6 7 8
3
1 , 2 ,& 3
1
represents output configuration (CMOS or Nch)
and first integer of voltage
Ex: CMOS 3.x =
2
D
Symbol
Output
Voltage
B
CMOS
1.
C
CMOS
2.
D
CMOS
3.
E
CMOS
4.
F
CMOS
5.
H
CMOS
I
CMOS
represents output configuration (CMOS or Nch)
Ex: CMOS 3.x = C
Symbol
5
Output
C
CMOS
N
N-Channel
represents first integer of detect voltage
Symbol
Voltage
6.
2
2.
7.
3
3.
4
4.
5
5.
6
6.
Symbol
Output
Voltage
L
Nch
1.
M
Nch
2.
N
Nch
3.
P
Nch
4.
R
Nch
5.
S
Nch
6.
T
Nch
7.
6
represents first decimal of detect voltage
Symbol
Voltage
Symbol
Voltage
0
.0
5
.5
1
.1
6
.6
2
.2
7
.7
represents first decimal of output voltage (0-9)
3
.3
8
.8
Ex: CMOS 3.x =
4
.4
9
.9
D 4
Symbol
Voltage
Symbol
Voltage
0
.0
6
.6
1
.1
7
.7
2
.2
8
.8
3
.3
9
.9
4
.4
5
.5
)
3
4
= 54X (fixed)
&
4
represents assembly lot code
DS21434J-page 8
7
8
represents the output delay time
Symbol
Delay Time
0
No Delay
represents the device accuracy
Symbol
Accuracy
1
±1.0% (custom)
2
±2.0% (standard)
 2001-2011 Microchip Technology Inc.
TC54
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DS21434J-page 9
TC54
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
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 2001-2011 Microchip Technology Inc.
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 2001-2011 Microchip Technology Inc.
DS21434J-page 11
TC54
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS21434J-page 12
 2001-2011 Microchip Technology Inc.
TC54
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DS21434J-page 13
TC54
NOTES:
DS21434J-page 14
 2001-2011 Microchip Technology Inc.
TC54
APPENDIX A:
REVISION HISTORY
Revision J (June 2011)
The following is the list of modifications:
1.
2.
3.
Updated temperature values in Temperature
Specifications table.
Corrected equation in Figure 4-1.
Added new examples layout in Section 5.1,
Package Marking Information.
Revision H (December 2007)
The following is the list of modifications:
1.
2.
3.
4.
5.
6.
7.
8.
Updated Features section.
Removed 5-Pin SOT-23 related information.
Updated Output Current (IOUT) Electrical
Specification.
Removed 7.7V (typical) Voltage Trip Point
Option. Max Trip Point Voltage is now 6.0V.
Updated Pin Function Table.
Updated Packaging Specification Information.
Added Revision History section.
Updated Product Identification System page.
Revision G (August 2004)
Undocumented changes.
Revision F (July 2004)
Undocumented changes.
Revision E (April 2003)
Undocumented changes.
Revision D (October 2002)
Undocumented changes.
Revision C (July 2002)
Undocumented changes.
Revision B (May 2002)
Undocumented changes.
Revision A (March 2001)
Original Release of this Document.
 2001-2011 Microchip Technology Inc.
DS21434J-page 15
TC54
NOTES:
DS21434J-page 16
 2001-2011 Microchip Technology Inc.
TC54
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
PART NO.
Device
X
XX
X
X
X
XX
XX
Output Detected Extra Tolerance Temp. Pkg Taping
Config. Voltage Feature
Direction
Code
Device:
TC54V:
Voltage Detector
Output Configuration:
N
C
= Nch Open-Drain
= CMOS Output
Detected Voltage:
14
21
27
29
30
42
43
=
=
=
=
=
=
=
Extra Feature Code:
0
= Fixed
Tolerance:
2
= 2%
Temperature:
E
= -40°C to +85°C
Package:
CB = Plastic Small Outline Transistor, SOT-23A, 3-lead
MB = Plastic Small Outline Transistor, SOT-89, 3-lead
ZB = Plastic Transistor Outline, TO-92, 3-lead
Examples:
a)
b)
c)
1.4V
2.1V
2.7V
2.9V
3.0V
4.2V
4.3V
d)
e)
f)
g)
h)
Taping Direction:
713 = Standard Taping
i)
 2001-2011 Microchip Technology Inc.
TC54VC1402ECB713:Tape and Reel,
1.4V Voltage
Detector, 2% Tol.,
SOT-23A-3.
TC54VC1402EMB713: Tape and Reel,
1.4V Voltage
Detector, 2% Tol.,
SOT-89-3.
TC54VC1402EZB:
1.4V Voltage
Detector, 2% Tol.,
TO-92.
TC54VC2102ECB713: Tape and Reel,
2.1V Voltage
Detector, 2% Tol.,
SOT-23A-3.
TC54VC2102EMB713: Tape and Reel,
2.1V Voltage
Detector, 2% Tol.,
SOT-89-3.
TC54VC2102EZB:
2.1V Voltage
Detector,
2% Tol., TO-92.
TC54VC2702ECB713: Tape and Reel,
2.7V Voltage
Detector, 2% Tol.,
SOT-23A-3.
TC54VC3002ECB713: Tape and Reel,
3.0V Voltage
Detector, 2% Tol.,
SOT-23A-3.
TC54VN4202ECB713: Tape and Reel,
4.2V Voltage
Detector,2% Tol.,
SOT-23A-3.
DS21434J-page 17
TC54
NOTES:
DS21434J-page 18
 2001-2011 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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•
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•
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Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
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conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC32 logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified
logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance,
TSHARC, UniWinDriver, WiperLock and ZENA are
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2001-2011, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-61341-137-7
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
 2001-2011 Microchip Technology Inc.
DS21434J-page 19
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Hangzhou
Tel: 86-571-2819-3180
Fax: 86-571-2819-3189
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Taiwan - Hsin Chu
Tel: 886-3-6578-300
Fax: 886-3-6578-370
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Kaohsiung
Tel: 886-7-213-7830
Fax: 886-7-330-9305
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
DS21434J-page 20
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
05/02/11
 2001-2011 Microchip Technology Inc.