STMICROELECTRONICS TC651AGV

TC650/TC651
Tiny Integrated Temperature Sensor & Brushless DC Fan
Controller with Overtemperature Alert
Features
General Description
• Integrated Temperature Sensing and Multi-speed
Fan Control
• Built-in Overtemperature Alert (TOVER)
• Temperature-proportional Fan Speed Control for
Acoustic Noise Reduction and Longer Fan Life
• Pulse Width Modulation (PWM) Output Drive for
Cost and Power Savings
• Solid-state Temperature Sensing
• ±1°C (typ.) Accuracy from 25°C to +70°C
• Operating Range: 2.8V – 5.5V
• TC651 includes Automatic Fan Shutdown
• Low Operating Current: 50 µA (typ.)
The TC650/TC651 are integrated temperature sensors
and brushless DC fan speed controllers. The TC650/
TC651 measure the junction temperature and control
the speed of the fan based on that temperature, making
them especially suited for applications in modern
electronic equipment.
Applications
•
•
•
•
•
•
Thermal Protection For Personal Computers
Digital Set-Top Boxes
Notebook Computers
Data Communications
Power Supplies
Projectors
Related Literature
• Application Note 771 (DS00771)
Temperature data is converted from the on-chip
thermal sensing element and translated into a
fractional fan speed from 40% to 100%. A temperature
selection guide in the data sheet is used to choose the
low and high temperature limits to control the fan. The
TC650/TC651 also include a single trip point overtemperature alert (TOVER) that eliminates the need for
additional temperature sensors. In addition, the TC651
features an auto fan shutdown function for additional
power savings.
The TC650/TC651 are easy to use, require no software
overhead and are, therefore, the ideal choice for
implementing thermal management in a variety of
systems.
Package Type
8-Pin MSOP
VDD 1
NC 2
SHDN 3
GND 4
 2004 Microchip Technology Inc.
8 PWM
TC650
TC651
7 GND
6 TOVER
5 NC
DS21450C-page 1
TC650/TC651
Typical Application Circuit
+12V
PICmicro®
Microcontroller
+5V VDD
SHDN
Control
DC Fan
500 mA
TC650
TC651
1 VDD
PWM 8
2 NC
GND 7
3 SHDN
4 GND
CSLOW
TOVER 6
NC 5
GND
GND
Overtemperature
Alert
DS21450C-page 2
 2004 Microchip Technology Inc.
TC650/TC651
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage (VDD to GND) ................................... +6V
† 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 Voltage (OUT to GND) ................................. 6V
Voltage On Any Pin ....... (GND – 0.3V) to (VDD + 0.3V)
Operating Temperature Range ......... –40°C to +125°C
Storage Temperature ........................ –65°C to +150°C
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, VDD = 2.8V to 5.5V, SHDN = VDD, TA = –40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Supply Voltage
VDD
2.8
—
5.5
V
Supply Current
IDD
—
50
90
µA
SHDN Input High Threshold
VIH
65
—
—
%VDD
SHDN Input Low Threshold
VIL
—
—
15
%VDD
PWM Output Low Voltage
VOL
—
—
0.3
V
ISINK = 1 mA
PWM Output High Voltage
VOH
VDD – 0.5
—
—
V
ISOURCE = 5 mA
PWM Rise Time
tR
—
10
—
µs
IOH = 5 mA, 1 nF from
PWM to GND
PWM Fall Time
tF
—
10
—
µs
IOL = 1 mA, 1 nF from
PWM to GND
fOUT
10
15
—
Hz
tSTARTUP
—
32/fOUT
—
sec
PWM, TOVER are open
SHDN Input
PWM Output
PWM Frequency
Start-up Time
VDD Rises from GND
or SHDN Released
Temperature Accuracy
High Temperature Accuracy
TH ACC
TH – 3
TH
TH + 3
°C
Note 1
–1.0
—
+1.0
°C
(TH – TL) ≤ 20°C
–2.5
—
+2.5
°C
(TH – TL) ≥ 20°C
THYST
—
(TH -TL)/5
—
°C
TC651 Only
TOVER Output High Voltage
VHIGH
VDD – 0.5
—
—
V
ISOURCE = 1.2 mA
TOVER Output Low Voltage
VLOW
—
—
0.4
V
ISINK = 2.5 mA
Absolute Accuracy
TOVER ACC
—
TH + 10
—
°C
At Trip Point
Trip Point Hysteresis
TOVER HYST
—
5
—
°C
Temperature Range Accuracy (TH –TL) ACC
Auto-shutdown Hysteresis
TOVER Output
Note 1:
Transition from 90% to 100% Duty Cycle.
 2004 Microchip Technology Inc.
DS21450C-page 3
TC650/TC651
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, VDD = 2.8V to 5.5V, SHDN = VDD, TA = -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Specified Temperature Range
TA
–40
—
+125
°C
Maximum Junction Temperature
TJ
—
—
+150
°C
Storage Temperature Range
TA
–65
—
+150
°C
θJA
—
206.3
—
°C/W
Conditions
Temperature Ranges
Package Thermal Resistances
Thermal Resistance, 8L-MSOP
DS21450C-page 4
 2004 Microchip Technology Inc.
TC650/TC651
2.0
TYPICAL PERFORMANCE CURVES
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.
Note: Unless otherwise indicated, VDD = 2.8V to 5.5V, SHDN = VDD, TA = –40°C to +125°C.
90
3.0
80
2.5
VDD = 5.6
60
IDD (µA)
Temp Accuracy (°C)
70
50
40
VDD = 2.7
30
20
2.0
1.5
1.0
VDD = 5.6
0.5
10
0.0
0
-50 -25
0
50
25
75 100 125 150
VDD = 2.7
T1
TL
T2
FIGURE 2-1:
IDD vs. Temperature.
FIGURE 2-4:
VTH.
500
1.0
450
0.9
400
VDD - VOH (V)
VOL (mV)
300
VDD = 5.5V
250
200
150
TH
Temperature Accuracy vs.
0.7
VDD = 2.8V
0.6
VDD = 5.5V
0.5
0.4
0.3
100
50
0.0
T4
0.8
VDD = 2.8V
350
T3
TTHRESHOLD
TEMPERATURE (°C)
0.2
TA = +25°C
0
1
2
3
4
5
6
7
8
9
10
0.1
0.0
ISINK (mA)
FIGURE 2-2:
PWM, ISINK vs. VOL.
FIGURE 2-5:
(VDD – VOH).
TA = +25°C
0
2
4
6
8 10 12 14 16 18 20
ISOURCE (mA)
PWM, ISOURCE vs.
1.0
0.9
VDD = 2.8V
VDD - VOH (V)
0.8
0.7
0.6
VDD = 5.5V
0.5
0.4
0.3
0.2
TA = +25°C
0.1
0.0
0
1
2
3
4
5
6
7
8
9
10
ISOURCE (mA)
FIGURE 2-3:
(VDD – VOH).
TOVER, ISOURCE vs.
 2004 Microchip Technology Inc.
DS21450C-page 5
TC650/TC651
3.0
PIN DESCRIPTION
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin No.
Symbol
1
VDD
Power Supply Input
2
NC
No Internal Connect
3
SHDN
4
GND
5
NC
6
TOVER
7
GND
Ground
8
PWM
PWM Fan Drive Output
3.1
Description
Fan Shutdown, Active-low Input
1 = Fan in normal operation
0 = Fan in shutdown
Ground
No Connect
Overtemperature Alert, Active-low Output
1 = Overtemperature condition does not exist
0 = The device is in the overtemperature condition. The fan is driven at 100%.
Potential exists for system over-heating
Power Supply Input
3.4
Overtemperature Alert
May be independent of fan power supply.
Active-low output.
3.2
3.5
Fan Shutdown, Active-low Input
During Shutdown mode, the chip still monitors
temperature. TOVER is low if temperature rises above
factory set point.
3.3
PWM Fan Drive Output
Pulse width modulated rail-to-rail logic output. Nominal
frequency is 15 Hz.
Ground
Ground return for all TC650/TC651 functions.
DS21450C-page 6
 2004 Microchip Technology Inc.
TC650/TC651
4.0
DETAILED DESCRIPTION
4.2
The TC650/TC651 acquire and convert their junction
temperature (TJ) information from an on-chip, solidstate sensor with a typical accuracy of ±1°C. The temperature data is digitally stored in an internal register.
The register is compared with pre-defined threshold values. The six threshold values are equally distributed
over a pre-defined range of temperatures (see Table 41). The TC650/TC651 control the speed of a DC brushless fan using a fractional speed-control scheme. The
output stage requires only a 2N2222-type, small-signal
BJT for fans up to 300 mA. For larger current fans (up
to 1 amp), a logic-level N-channel MOSFET may be
used. In addition to controlling the speed of the fan, the
TC650/TC651 include an on-chip overtemperature
alarm (TOVER) that gives a low signal when the temperature of the chip exceeds TH by 10°C (typical). This feature eliminates the need for a separate temperature
sensor for overtemperature monitoring. Figure 4-1
shows the block diagram of the device.
TOVER
VDD
Temperature
Set Point and
Trim Range
V+
SHDN
Duty Cycle
Logic
Control
PWM
A/D Converter
Oscillator
Temperature Sensor
FIGURE 4-1:
4.1
Functional Block Diagram.
PWM Output
The PWM pin is designed to drive a low-cost transistor
or MOSFET as the low-side, power-switching element
in the system. This output has an asymmetric
complementary drive and is optimized for driving NPN
transistors or N-channel MOSFETs. Since the system
relies on PWM rather than linear power control, the
dissipation in the power switch is kept to a minimum.
Generally, very small devices (TO-92 or SOT
packages) will suffice. The frequency of the PWM is
about 15 Hz. The PWM is also the time base for the
Start-up Timer (see Section 4.2 “Start-Up Timer”).
The PWM duty cycle has a range of 40% to 100% for
the TC650 and 50% to 100% for the TC651.
 2004 Microchip Technology Inc.
Start-Up Timer
To ensure reliable fan start-up, the Start-up Timer turns
PWM high for about 2 seconds whenever the fan is
started from the off state. This occurs at power-up and
when coming out of Shutdown mode.
4.3
Overtemperature Alert (TOVER)
This pin goes low when the TH set point is exceeded by
10°C (typical). This indicates that the fan is at
maximum drive and the potential exists for system
overheating; either heat dissipation in the system has
gone beyond the cooling system's design limits or
some fault exists (such as fan bearing failure or an airflow obstruction). This output may be treated as a
“System Overheat” warning and be used to either
trigger system shutdown or bring other fans in the
system to full speed. The fan will continue to run at full
speed while TOVER is asserted. Built-in hysteresis
prevents TOVER from “chattering” when the measured
temperature is at or near the TH + 10°C trip point. As
temperature falls through the TH + 10°C trip point, hysteresis maintains the TOVER output low until the
measured temperature is 5°C above the trip point
setting.
4.4
Shutdown (SHDN)
The fan can be unconditionally shut down by pulling
the SHDN pin low. During shutdown, the PWM output
is low; ideal for notebook computers and other portable
applications where you need to change batteries and
must not have the fan running at that time. Thermal
monitoring and TOVER are still in operation during
shutdown. IDD shutdown current is around 50 µA.
4.5
Auto-shutdown Mode
The TC651 features auto-shutdown. When the
temperature is below the factory set point at minimum
speed (TL), PWM is low and the fan is automatically
shut off (Auto-shutdown mode). This feature is ideal for
notebook computers and other portable equipment that
need to conserve as much battery power as possible
and, thus, run a fan when it is only absolutely needed.
The TC651 will continue to be active in order to monitor
temperature for TOVER. The TC651 exits Autoshutdown mode when the temperature rises above the
factory set point (T1).
DS21450C-page 7
TC650/TC651
4.6
Temperature Selection Guide
(Minimum Fan Speed/Full Speed)
There are two temperature thresholds that determine
the characteristics of the device. The minimum fan
speed temperature (TL) and the full fan speed temperature (TH). Depending on the TC65X device selected,
when the temperature is below the TL trip point, the
PWM output will perform a different operation. For the
TC650, the PWM will be driven at the minimum PWM
frequency, while the TC651 will shut down the PWM
(PWM = L).
TL and TH can be selected in 5°C increments. TL can
range from 25°C to 35°C. TH can range from 35°C to
55°C and must be 10°C (or more) than the specified TL.
The five temperature regions defined by the six
thresholds are defined in the TC650/TC651 by means of
factory trimming. Once a TL and TH are set, the T1 – T4
thresholds are automatically equally spaced between TL
and TH. Table 4-1 shows these 5 regions and what the
corresponding PWM duty cycle is.
TABLE 4-1:
TC650
(Minimum
Speed mode)
TC651
(Auto-shutdown
mode)
T < TL
40%
Off
TL< = T < T1
50%
50%
T1 < = T < T2
60%
60%
T2 < = T <T3
70%
70%
T3 < = T < T4
80%
80%
T4 < = T < TH
90%
90%
100%
100%
TH < = T < TOV
TOV < = T
Note 1:
Example 1: Suppose you wanted the fan to run at
40% speed at 25°C or less and go to fullspeed at 45°C. You would order the part
number TC650AEVUA.
Example 2: Suppose you wanted the fan to turn on at
30°C and go to full speed at 45°C. You
would order the part number
TC651BEVUA.
TABLE 4-2:
DEVICE CODES FOR
TEMPERATURE
THRESHOLDS
Temp.
Threshold
Difference
TL
TH
Threshold
Limits Code
10°C
25
35
AC (1)
30
40
BD (2)
35
45
CE (2)
25
40
AD (2)
30
45
BE (1)
35
50
CF (2)
25
45
AE (1)
30
50
BF (2)
35
55
CG (1)
25
55
AG (1)
TEMPERATURE RANGE
DEFINITION
PWM Duty Cycle
Temperature
(T = TJ)
(Note 1)
Table 4-2 shows the device codes that specify the TH
and TL temperature thresholds. The following examples are given to assist in understanding the deviceordering nomenclature.
15°C
20°C
30°C
Note 1:
2:
This temperature threshold option is
available for ordering.
This is a custom temperature threshold
option. Please contact the factory for
more information.
100% with Overtemperature Alert
(TOVER = L)
The temperature regions defined by the
six temperature thresholds are predefined in the TC650/TC651 by means of
factory trimming. Once a TL and TH are
programmed, the T1 – T4 thresholds are
automatically equally spaced between TL
and TH.
DS21450C-page 8
 2004 Microchip Technology Inc.
TC650/TC651
5.0
TYPICAL APPLICATIONS
5.1
Reducing Switching Noise
For fans consuming more than 300 mA, a slowdown
capacitor (CSLOW) is recommended for reducing
switching PWM induced noise (see Figure 5-1). The
value of this capacitor should be 4.7 µF to 47 µF,
depending on the fan current consumption.
See Application Note 771, “Suppressing Acoustic
Noise in PWM Fan Speed Control Systems”
(DS00771), for more information.
+12V
PICmicro®
Microcontroller
+5V VDD
SHDN
Control
DC Fan
500 mA
TC650
TC651
1 VDD
PWM 8
2 NC
GND 7
3 SHDN
4 GND
CSLOW
TOVER 6
NC 5
GND
GND
Overtemperature
Alert
FIGURE 5-1:
Reducing Switching Noise.
 2004 Microchip Technology Inc.
DS21450C-page 9
TC650/TC651
6.0
PACKAGING INFORMATION
6.1
Package Marking Information
Example:
8-Lead MSOP
650ACV
406256
XXXXX
YWWNNN
Legend: XX...X
Y
WW
NNN
Note:
*
Customer specific information*
Year code (last digit of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
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.
Standard device marking consists of Microchip part number, year code, week code, and traceability
code.
DS21450C-page 10
 2004 Microchip Technology Inc.
TC650/TC651
8-Lead Plastic Micro Small Outline Package (MS) (MSOP)
E
E1
p
D
2
B
n
1
α
A2
A
c
φ
A1
(F)
L
β
Units
Dimension Limits
n
p
MIN
INCHES
NOM
MAX
MILLIMETERS*
NOM
8
0.65 BSC
0.75
0.85
0.00
4.90 BSC
3.00 BSC
3.00 BSC
0.40
0.60
0.95 REF
0°
0.08
0.22
5°
5°
-
MIN
8
Number of Pins
.026 BSC
Pitch
A
.043
Overall Height
A2
.030
.033
.037
Molded Package Thickness
A1
.000
.006
Standoff
E
.193 TYP.
Overall Width
E1
.118 BSC
Molded Package Width
D
.118 BSC
Overall Length
L
.016
.024
.031
Foot Length
Footprint (Reference)
F
.037 REF
φ
0°
8°
Foot Angle
c
Lead Thickness
.003
.006
.009
.009
.012
.016
Lead Width
B
α
5°5°
15°
Mold Draft Angle Top
β
5°5°
15°
Mold Draft Angle Bottom
*Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not
exceed .010" (0.254mm) per side.
MAX
1.10
0.95
0.15
0.80
8°
0.23
0.40
15°
15°
JEDEC Equivalent: MO-187
Drawing No. C04-111
 2004 Microchip Technology Inc.
DS21450C-page 11
TC650/TC651
6.2
Product Tape and Reel Specifications
FIGURE 6-1:
EMBOSSED CARRIER DIMENSIONS
Top
Cover
Tape
A0
W
B0
K0
P
TABLE 1:
CARRIER TAPE/CAVITY DIMENSIONS
Case
Outline
Carrier
Dimensions
Package
Type
MS
MSOP
FIGURE 1:
8L
Cavity
Dimensions
W
mm
P
mm
A0
mm
B0
mm
K0
mm
12
8
5.3
3.6
1.4
Output
Quantity
Units
Reel
Diameter in
mm
2500
330
MSOP DEVICES
User Direction of Feed
Pin 1
Pin 1
W, Width
of Carrier
Tape
P, Pitch
Standard Reel Component Orientation
DS21450C-page 12
Reverse Reel Component Orientation
 2004 Microchip Technology Inc.
TC650/TC651
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
XX
X
XX
Examples:
Temperature Temperature Package
Threshold
Range
Limit
Device:
a)
b)
TC650: Temp Sensor & Brushless DC Fan Controller /
Overtemperature Alert (minimum speed)
TC651: Temp Sensor & Brushless DC Fan Controller /
Overtemperature Alert (auto shutdown)
c)
d)
e)
Temperature
Threshold Limit:
Temperature
Difference
TL (1,2)
TH (1,3)
Threshold
Limit Code
10°C
25
30
35
35
40
45
AC
BD
CE
15°C
25
30
35
40
45
50
AD
BE
CF
20°C
25
30
35
45
50
55
AE
BF
CG
30°C
25
55
AG
f)
g)
TC650ACVUA:
Temp Sensor
TL = 25, TH = 35
TC651ACVUATR: Temp Sensor
TL = 25, TH = 35
Tape and Reel
TC650AEVUA:
Temp Sensor
TL = 25, TH = 45
TC651AGVUA:
Temp Sensor
TL = 25, TH = 55
TC650BEVUA:
Temp Sensor
TL = 30, TH = 45
TC651CGVUA:
Temp Sensor
TL = 35, TH = 55
TC650CGVUATR: Temp Sensor
TL = 35, TH = 55
Tape and Reel
1. TL and TH can be selected in 5°C increments.
2. TL can range from 25°C to 35°C.
3. TH can range from 35°C to 55°C and must be at least 10°C higher than TL.
Temperature Range:
V = -40°C to +125°C (Extended)
Package:
UA = Plastic Micro Small Outline (MSOP), 8-lead
UATR = Plastic Micro Small Outline (MSOP), 8-lead
(Tape and Reel)
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and
recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
2.
3.
Your local Microchip sales office
The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
Customer Notification System
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
 2004 Microchip Technology Inc.
DS21450C-page 13
TC650/TC651
NOTES:
DS21450C-page 14
 2004 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 intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical
components in life support systems is not authorized except
with express written approval by Microchip. No licenses are
conveyed, implicitly or otherwise, under any intellectual
property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro,
PICSTART, PRO MATE, PowerSmart, rfPIC, and
SmartShunt are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL,
SmartSensor 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, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Migratable Memory, MPASM,
MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net,
PICLAB, PICtail, PowerCal, PowerInfo, PowerMate,
PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial,
SmartTel and Total Endurance 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.
© 2004, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 quality system certification for
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro® 8-bit MCUs, 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.
 2004 Microchip Technology Inc.
DS21450C-page 15
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:
480-792-7627
Web Address:
www.microchip.com
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
India - Bangalore
Tel: 91-80-2229-0061
Fax: 91-80-2229-0062
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
India - New Delhi
Tel: 91-11-5160-8632
Fax: 91-11-5160-8632
Austria - Weis
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark - Ballerup
Tel: 45-4420-9895
Fax: 45-4420-9910
China - Chengdu
Tel: 86-28-8676-6200
Fax: 86-28-8676-6599
Japan - Kanagawa
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
France - Massy
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
China - Fuzhou
Tel: 86-591-750-3506
Fax: 86-591-750-3521
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Germany - Ismaning
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Alpharetta, GA
Tel: 770-640-0034
Fax: 770-640-0307
Boston
Westford, MA
Tel: 978-692-3848
Fax: 978-692-3821
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
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
China - Shanghai
Tel: 86-21-6275-5700
Fax: 86-21-6275-5060
China - Shenzhen
Tel: 86-755-8290-1380
Fax: 86-755-8295-1393
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
China - Qingdao
Tel: 86-532-502-7355
Fax: 86-532-502-7205
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Kaohsiung
Tel: 886-7-536-4816
Fax: 886-7-536-4817
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
England - Berkshire
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Taiwan - Hsinchu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
San Jose
Mountain View, CA
Tel: 650-215-1444
Fax: 650-961-0286
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
08/24/04
DS21450C-page 16
 2004 Microchip Technology Inc.