MICROCHIP TC1271MERCTR

TC1270/TC1271
4-Pin Reset Monitors
Features:
General Description
• Precision VCC Monitor for 1.8V, 2.7V, 3.0V, 3.3V
and 5.0V Nominal Supplies
• Manual Reset Input
• 140 ms Minimum RESET, Reset Output Duration
• RESET Output Valid to VCC = 1.0V (TC1270)
• Low 7 µA Supply Current
• VCC Transient Immunity
• Small 4-Pin SOT-143 Package
• No External Components
• Replacement for MAX811/812 and Offers a Lower
Threshold Voltage Option
The TC1270 and TC1271 are cost-effective system
supervisor circuits designed to monitor VCC in digital
systems and provide a reset signal to the host
processor when necessary. A manual reset input is
provided to override the reset monitor, and is suitable
for use as a push button reset. No external components
are required.
Applications:
•
•
•
•
Computers
Embedded Systems
Battery Powered Equipment
Critical µP Power Supply Monitoring
The reset output is driven active within 20 µs (4 µs for
F version) of VCC falling through the reset voltage
threshold. Reset is maintained active for a minimum of
140 ms after VCC rises above the reset threshold. The
TC1271 has an active-high RESET output while the
TC1270 has an active-low RESET output. The output
of the TC1270 is valid down to VCC = 1V. Both devices
are available in a 4-Pin SOT-143 package.
The TC1270/TC1271 devices are optimized to reject
fast transient glitches on the VCC line. Low supply
current of 7 µA (VCC = 3.3V) makes these devices
suitable for battery powered applications.
Package Type
Typical Operating Circuit
VCC
VCC
VCC
Processor
Push
Button
MR
RESET
TC1270
GND
© 2007 Microchip Technology Inc.
GND 1
Reset
Input
(Active Low)
GND
4
VCC
3
MR
TC1270
TC1271
TC1270 RESET
TC1271 (RESET)
2
DS21381D-page 1
TC1270/TC1271
1.0
ELECTRICAL
CHARACTERISTICS
† 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.
Absolute Maximum Ratings†
Supply Voltage (VCC to GND) .............................+6.0V
RESET, Reset ............................ -0.3V to (VCC + 0.3V)
Input Current, VCC ..............................................20 mA
Output Current, RESET, Reset...........................20 mA
Operating Temperature Range.............-40°C to +85°C
Storage Temperature Range ..............-65°C to +150°C
ELECTRICAL SPECIFICATIONS
Electrical Characteristics: VCC = 5V for L/M versions, VCC = 3.3V for T/S versions, VCC = 3V for R version, VCC = 2.0V for F
version. Unless otherwise noted, TA = -40°C to +85°C. Typical values are at TA = +25°C. (Note 1).
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VCC
VCC Range
1.2
—
5.5
V
ICC
Supply Current
—
7
15
µA
VCC > VTH, for L/M/R/S/T/F
—
10
15
µA
VCC < VTH, for L/M/R/S/T
VTH
tRP
—
6
12
µA
VCC < VTH, for F
4.54
4.50
4.63
—
4.72
4.75
V
V
TC127_L; TA = +25°C
TA = -40°C to +85°C
4.30
4.25
4.38
—
4.46
4.50
V
V
TC127_M; TA = +25°C
TA = -40°C to +85°C
3.03
3.00
3.08
—
3.14
3.15
V
V
TC127_T; TA = +25°C
TA = -40°C to +85°C
2.88
2.85
2.93
—
2.98
3.00
V
V
TC127_S; TA = +25°C
TA = -40°C to +85°C
2.58
2.55
2.63
—
2.68
2.70
V
V
TC127_R; TA = +25°C
TA = -40°C to +85°C
1.71
1.70
1.75
—
1.79
1.80
V
V
TC127_F; TA = +25°C
TA = -40°C to +85°C
Reset Threshold Tempco
—
30
—
ppm/°C
VCC to Reset Delay
—
—
20
5
—
—
µs
VCC = VTH to VTH – 125 mV;
L/M/R/S/T/F
Reset Active Time-out Period
140
280
560
ms
VCC = VTH(MAX)
Reset Threshold
MR Minimum Pulse Width
10
—
—
µs
MR Glitch Immunity
—
0.1
—
µs
tMD
MR to Reset Propagation Delay
—
0.5
—
µs
VIH
MR Input Threshold
2.3
—
—
V
0.7 VCC
—
—
V
VCC > VTH(MAX), TC127_R/S/T/F
—
—
0.8
V
VCC > VTH(MAX), TC127_L/M
—
—
0.15 VCC
V
VCC > VTH(MAX), TC127_R/S/T/F
10
20
40
kΩ
0.8 VCC
—
—
V
tMR
VIL
MR Pull-up Resistance
VOH
Note 1:
2:
Reset Output Voltage High
(TC1271)
VCC > VTH(MAX), TC127_L/M
ISOURCE = 150 µA;
VCC ≤ VTH(MIN)
Production testing done at TA = +25°C, over temperature limits ensured by design.
RESET output for TC1270, Reset output for TC1271.
DS21381D-page 2
© 2007 Microchip Technology Inc.
TC1270/TC1271
ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: VCC = 5V for L/M versions, VCC = 3.3V for T/S versions, VCC = 3V for R version, VCC = 2.0V for F
version. Unless otherwise noted, TA = -40°C to +85°C. Typical values are at TA = +25°C. (Note 1).
Symbol
VOL
VOL
VOH
Note 1:
2:
Parameter
Reset Output Voltage Low
(TC1271)
RESET Output Voltage Low
(TC1270)
RESET Output Voltage High
(TC1270)
Min
Typ
Max
Units
Test Conditions
—
—
0.2
V
TC1271F only,
ISINK = 500 µA,
VCC = VTH(MAX)
—
—
0.3
V
TC1271R/S/T only,
ISINK = 1.2 mA, VCC = VTH(MAX)
—
—
0.4
V
TC1271L/M only, ISINK = 3.2 mA,
VCC = VTH(MAX)
—
—
0.3
V
TC1270R/S/T only,
ISINK = 1.2 mA, VCC = VTH(MIN)
TC1270F only:
ISINK = 500 µA, VCC = VTH(MIN)
—
—
—
—
0.4
TBD
V
V
TC1270L/M only,
ISINK = 3.2 mA, VCC = VTH(MIN)
ISINK = 50 µA, VCC > 1.0V
VCC – 1.5
—
—
V
TC1270L/M only,
ISOURCE = 800 µA,
VCC = VTH(MAX)
0.8 VCC
—
—
V
TC1270R/S/T/F only,
ISOURCE = 500 µA,
VCC = VTH(MAX)
Production testing done at TA = +25°C, over temperature limits ensured by design.
RESET output for TC1270, Reset output for TC1271.
© 2007 Microchip Technology Inc.
DS21381D-page 3
TC1270/TC1271
2.0
TYPICAL CHARACTERISTICS
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Supply Current vs.Temperature
(No Load, TC127xR/S/T/F)
Supply Current vs.Temperature
(No Load, TC127xL/M)
14
8
SUPPLY CURRENT (μA)
SUPPLY CURRENT (μA)
12
10
VCC = 5V
8
VCC = 3V
6
4
VCC = 1V
6
VCC = 5V
4
VCC = 3V
VCC = 1V
2
2
-20
0
20
40
60
0
-40
85
60
Power-Down Reset Delay vs. Temperature
(TC127xL/M/R/S/T)
30
VOD = 20mV
20
10
VOD = 100mV
VOD = 200 mV
-20
0
20
40
60
85
50
L/M VOD = 20 mV
VOD = 100 mV
40
VOD = 200 mV
30
R/S/T
20
VOD = 200 mV
VOD = 100 mV
VOD = 20 mV
10
0
-40
85
-20
TEMPERATURE (°C)
0
20
40
60
85
TEMPERATURE (°C)
Normalized Reset Threshold vs. Temperature
Power-Up Reset Time-out vs. Temperature
1.0030
250
NORMALIZED THRESHOLD (V)
POWER-UP RESET TIMEOUT (msec)
40
Power-Down Reset Delay vs. Temperature
(TC127xF)
40
245
TC127xL/M
240
TC127xR/S/T/F
235
230
225
-40
20
TEMPERATURE (°C)
50
0
-40
0
-20
TEMPERATURE (°C)
POWER-DOWN RESET DELAY (μsec)
POWER-DOWN RESET DELAY (μsec)
0
-40
1.0020
1.0010
1.0000
0.9990
0.9980
0.9970
0.9960
0.9950
0.9940
-20
0
20
40
TEMPERATURE (°C)
DS21381D-page 4
60
85
-40
-15
35
10
TEMPERATURE (°C)
60
65
© 2007 Microchip Technology Inc.
TC1270/TC1271
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin No.
3.1
PIN FUNCTION TABLE
Symbol
Description
1
GND
2
RESET
(TC1270)
Ground
RESET output remains low while VCC is below the Reset voltage threshold,
and for at least 140 ms min. after VCC rises above Reset threshold
2
RESET
(TC1271)
Reset output remains high while VCC is below the Reset voltage threshold,
and for at least 140 ms min. after VCC rises aboev Reset threshold
3
MR
Manual Reset input generates a Reset when MR is below VIL
4
VCC
Supply voltage
Ground Terminal (GND)
GND provides the negative reference for the analog
input voltage. Typically, the circuit ground is used.
3.2
Reset Output (RESET) (TC1270)
RESET output remains low while VCC is below the
Reset voltage threshold (VTRIP). Once the device
voltage (VCC) returns to a high level (VTRIP + VHYS), the
device will remain in Reset for the Reset delay timer
(TRST). After that time expires, the RESET pin will be
driven to the high state.
3.3
Reset Output (RESET) (TC1271)
3.4
Manual Reset (MR)
The Manual Reset (MR) input pin allows a push button
switch to easily be connected to the system. When the
push button is depressed, it forces a system Reset.
This pin has circuitry that filters noise that may be
present on the MR signal.
The MR pin is active-low and has an internal pull-up
resistor.
3.5
Supply Voltage (VCC)
VCC can be used for power supply monitoring or a
voltage level that requires monitoring.
RESET output remains high while VCC is below the
Reset voltage threshold (VTRIP). Once the device
voltage (VCC) returns to a high level (VTRIP + VHYS), the
device will remain in Reset for the Reset delay timer
(TRST). After that time expires, the RESET pin will be
driven to the low state.
© 2007 Microchip Technology Inc.
DS21381D-page 5
TC1270/TC1271
4.0
APPLICATIONS INFORMATION
4.1
VCC Transient Rejection
The TC1270/TC1271 provides accurate VCC
monitoring and Reset timing during power-up,
power-down, and brownout/sag conditions, and rejects
negative-going transients (glitches) on the power
supply line. Figure 4-3 shows the maximum transient
duration vs. maximum negative excursion (overdrive)
for glitch rejection. Any combination of duration and
overdrive that lays under the curve will not generate a
Reset signal. Combinations above the curve are
detected as a brown-out or power-down. Transient
immunity can be improved by adding a capacitor in
close proximity to the VCC pin of the TC1270/TC1271.
be connected from RESET to ground to discharge stray
capacitances and hold the output low (Figure 4-2). This
resistor value, though not critical, should be chosen
such that it does not appreciably load RESET under
normal operation
(100 kΩ will be suitable for most
applications). Similarly, a pull-up resistor to VCC is
required for the TC1271 to ensure a valid high RESET
for VCC below 1.1V.
VCC
VCC
TC1270
RESET
VCC
R1
100k
GND
VTH
MAXIMUM TRANSIENT DURATION (msec)
Overdrive
FIGURE 4-2:
VCC = 0V.
Duration
400
TA = +25°C
320
240
160
TC127LMJ
80
TC127xR/S/T
0
1
10
1000
100
RESET COMPARATOR OVERDRIVE,
VTH - VCC (mV)
FIGURE 4-1:
Maximum Transient
Duration vs. Overdrive for Glitch Rejection at
+25°C.
4.3
Ensuring RESET Valid to
Processors With Bidirectional
I/O Pins
Some microprocessor’s (such as Motorola 68HC11)
have bidirectional Reset pins. Depending on the
current drive capability of the processor pin, an indeterminate logic level may result if there is a logic conflict.
This can be avoided by adding a 4.7 kΩ resistor in
series with the output of the TC1270/TC1271
(Figure 4-3). If there are other components in the system which require a Reset signal, they should be buffered so as not to load the Reset line. If the other
components are required to follow the Reset I/O of the
microprocessor, the buffer should be connected as
shown with the solid line.
Buffer
VCC
VCC
VCC
4.2
Reset Signal Integrity During
Power-Down
The TC1270 RESET output is valid to VCC = 1.0V.
Below this voltage the output becomes an “open circuit”
and does not sink current. This means CMOS logic
inputs to the microprocessor will be floating at an
undetermined voltage. Most digital systems are
completely shut down well above this voltage.
However, in situations where RESET must be
maintained valid to VCC = 0V, a pull-down resistor must
DS21381D-page 6
Buffered RESET
To Other System
Components
TC1270
RESET
GND
FIGURE 4-3:
Reset I/O.
μP
4.7k
RESET
GND
Interfacing to Bidirectional
© 2007 Microchip Technology Inc.
TC1270/TC1271
5.0
PACKAGING INFORMATION
5.1
Package Marking Information
1
2
3
Part Number
4
1
1
&
2
= part number code + threshold voltage
(two-digit code)
5.2
TC1270
Code
(V)
TC1270LERCTR
4.63
S1
TC1270MERCTR
4.38
S2
TC1270TERCTR
3.08
S3
TC1270SERCTR
2.93
S4
TC1270RERCTR
2.63
S5
TC1270FERCTR
1.75
S7
Part Number
(V)
TC1271
Code
TC1271LERCTR
4.63
T1
TC1271MERCTR
4.38
T2
TC1271TERCTR
3.08
T3
TC1271SERCTR
2.9
T4
TC1271RERCTR
2.63
T5
TC1271FERCTR
1.75
T7
3
represents year and quarter code
4
represents production lot ID code
Taping Form
User Direction of Feed
Device
Marking
Pin 1
Pin 1
W, Width
of Carrier
Tape
P, Pitch
Standard Reel Component Orientation
Reverse Reel Component Orientation
for TR Suffix Device
(Mark Right Side Up)
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
4-Pin SOT-143
8 mm
4 mm
3000
7 in.
© 2007 Microchip Technology Inc.
DS21381D-page 7
TC1270/TC1271
4-Lead Plastic Small Outline Transistor (RC) [SOT-143]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
e
e/2
N
E
E1
1
2
e1
A2
A
c
φ
A1
b2
Units
Dimension Limits
Number of Pins
L
L1
3X b
MILLIMETERS
MIN
N
NOM
MAX
4
Pitch
e
1.92 BSC
Pin1 Offset
e1
0.20 BSC
Overall Height
A
0.80
–
Molded Package Thickness
A2
0.75
0.90
1.22
1.07
Standoff §
A1
0.01
–
0.15
Overall Width
E
2.10
–
2.64
Molded Package Width
E1
1.20
1.30
1.40
Overall Length
D
2.67
2.90
3.05
Foot Length
L
0.13
0.50
0.60
Footprint
L1
Foot Angle
φ
0°
–
8°
Lead Thickness
c
0.08
–
0.20
Lead 1 Width
b1
0.76
–
0.94
Leads 2, 3 & 4 Width
b
0.30
–
0.54 REF
0.54
Notes:
1. § Significant Characteristic.
1. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.25 mm per side.
2. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-031B
DS21381D-page 8
© 2007 Microchip Technology Inc.
TC1270/TC1271
APPENDIX A:
REVISION HISTORY
Revision D (February 2007)
• Section 5.0 “Packaging Information”:
Corrected SOT-143 Packaging Information.
• Section 3.0 “Pin Descriptions”: Added pin
descriptions.
• Added disclaimer on package outline drawing.
• Updated package outline drawing.
• Section 1.0 “Electrical Characteristics”: Refomatted table.
Revision C (June 2006)
• Enhanced SOT-143 Packaging Information.
Revision B (May 2002)
• Undocumented changes.
Revision A (March 2002)
• Original Release of this Document.
© 2007 Microchip Technology Inc.
DS21381D-page 9
TC1270/TC1271
NOTES:
DS21381D-page 10
© 2007 Microchip Technology Inc.
TC1270/TC1271
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
X
Threshold Temperature
Voltage
Range
Device
TC1270: 4-Pin RESET Monitor
TC1271: 4-Pin RESET Monitor
Threshold voltage
(typical)
L
M
T
S
R
F
=
=
=
=
=
=
Temperature Range
E
= -40°C to +85°C
Package
RCTR =
XX
Package
4.63
4.38
3.08
2.93
2.63
1.75
Examples:
a)
b)
c)
d)
e)
f)
g)
TC1270LERCTR:
TC1270MERCTR:
TC1270TERCTR:
TC1270SERCPBTR:
TC1270SERCTR:
TC1270RERCTR:
TC1270FERCTR:
4.63V
4.38V
3.08V
2.93V
2.93V
2.63V
1.75V
a)
b)
c)
d)
e)
f)
TC1271LERCTR:
TC1271MERCTR:
TC1271TERCTR:
TC1271SERCTR:
TC1271RERCTR:
TC1271FERCTR:
4.63V
4.38V
3.08V
2.93V
2.63V
1.75V
Plastic small outline transistor (RC) SOT-143,
4 lead, (tape and reel).
© 2007 Microchip Technology Inc.
DS21381D-page 11
TC1270/TC1271
NOTES:
DS21381D-page 12
© 2007 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
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
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conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
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The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC,
PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and
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and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated
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Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,
ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi,
MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit,
PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,
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SQTP is a service mark of Microchip Technology Incorporated
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All other trademarks mentioned herein are property of their
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© 2007, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
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Tempe, Arizona, Gresham, Oregon and Mountain View, California. The
Company’s quality system processes and procedures are for its PIC®
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EEPROMs, microperipherals, nonvolatile memory and analog
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manufacture of development systems is ISO 9001:2000 certified.
© 2007 Microchip Technology Inc.
DS21381D-page 13
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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
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
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: 86-10-8528-2100
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Korea - Gumi
Tel: 82-54-473-4301
Fax: 82-54-473-4302
China - Fuzhou
Tel: 86-591-8750-3506
Fax: 86-591-8750-3521
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Penang
Tel: 60-4-646-8870
Fax: 60-4-646-5086
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
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
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
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: 86-29-8833-7250
Fax: 86-29-8833-7256
12/08/06
DS21381D-page 14
© 2007 Microchip Technology Inc.