MICROCHIP TC4429MJA

TC4420M/TC4429M
6A High-Speed MOSFET Drivers
Features
General Description
• Latch-Up Protected: Will Withstand >1.5A
Reverse Output Current
• Logic Input: Will Withstand Negative Swing Up To
5V
• ESD Protected: 4 kV
• Matched Rise and Fall Times:
- 25 ns (2500 pF load)
• High Peak Output Current: 6A
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Capacitive Load Drive Capability: 10,000 pF
• Short Delay Time: 55 ns (typ.)
• CMOS/TTL-Compatible Input
• Low Supply Current With Logic ‘1’ Input:
- 450 µA (typ.)
• Low Output Impedance: 2.5Ω
• Output Voltage Swing to Within 25 mV of Ground
or VDD
• Wide Operating Temperature Range:
- -55°C to +125°C
• See TC4420/TC4429 Data Sheet (DS21419) for
additional temperature range and package
offerings.
The TC4420M/TC4429M are 6A (peak), single-output
MOSFET drivers. The TC4429M is an inverting driver
(pin-compatible with the TC429M), while the TC4420M
is a non-inverting driver. These drivers are fabricated in
CMOS for lower power and more efficient operation
versus bipolar drivers.
Both devices have TTL/CMOS-compatible inputs,
which can be driven as high as VDD + 0.3V or as low as
-5V without upset or damage to the device. This
eliminates the need for external level-shifting circuitry
and its associated cost and size. The output swing is
rail-to-rail, ensuring better drive voltage margin,
especially during power-up/power-down sequencing.
The propagational delay time is only 55 ns (typ.), while
the output rise and fall times are only 25 ns (typ.) into
2500 pF across the usable power supply range.
Unlike other drivers, the TC4420M/TC4429M are
virtually latch-up proof. They replace three or more
discrete components, saving PCB area and parts while
improving overall system reliability.
Package Types:
VDD 1
Applications
•
•
•
•
Switch-mode Power Supplies
Motor Controls
Pulse Transformer Driver
Class D Switching Amplifiers
© 2005 Microchip Technology Inc.
INPUT 2
NC 3
GND 4
Note:
TC4420M
TC4429M
8-Pin CERDIP
TC4420M
TC4429M
8
VDD
VDD
7
OUTPUT
OUTPUT
6
OUTPUT
OUTPUT
5
GND
GND
Duplicate pins must both be connected for
proper operation.
DS21933A-page 1
TC4420M/TC4429M
Functional Block Diagram
VDD
500 µA
TC4429M
Inverting
300 mV
Output
TC4420M
Non-Inverting
Input
4.7V
GND
Effective
Input
C = 38 pF
DS21933A-page 2
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
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 ..................................................... +20V
Input Voltage ....................................-5V to VDD + 0.3V
Input Current (VIN > VDD)................................... 50 mA
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, TA = +25°C with 4.5V ≤ VDD ≤ 18V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Logic ‘1’, High Input Voltage
VIH
2.4
1.8
—
V
Logic ‘0’, Low Input Voltage
VIL
—
1.3
0.8
V
Input Voltage Range
VIN
-5
—
VDD + 0.3
V
Input Current
IIN
-10
—
+10
µA
0V ≤ VIN ≤ VDD
VOH
VDD – 0.025
—
—
V
DC TEST
Low Output Voltage
VOL
—
—
0.025
V
DC TEST
Output Resistance, High
ROH
—
2.1
2.8
Ω
IOUT = 10 mA, VDD = 18V
Output Resistance, Low
ROL
—
1.5
2.5
Ω
IOUT = 10 mA, VDD = 18V
Peak Output Current
IPK
—
6.0
—
A
VDD = 18V
IREV
—
> 1.5
—
A
Duty cycle ≤ 2%, t ≤ 300 µs
tR
—
25
35
ns.
Figure 4-1, CL = 2,500 pF
Fall Time
tF
—
25
35
ns.
Figure 4-1, CL = 2,500 pF
Delay Time
tD1
—
55
75
ns.
Figure 4-1
Delay Time
tD2
—
55
75
ns.
Figure 4-1
IS
—
—
0.45
55
1.5
150
mA
µA
VIN = 3V
VIN = 0V
VDD
4.5
—
18
V
Input
Output
High Output Voltage
Latch-Up Protection
Withstand Reverse Current
Switching Time (Note 1)
Rise Time
Power Supply
Power Supply Current
Operating Input Voltage
Note 1:
Switching times ensured by design.
© 2005 Microchip Technology Inc.
DS21933A-page 3
TC4420M/TC4429M
DC CHARACTERISTICS (OVER OPERATING TEMPERATURE RANGE)
Electrical Specifications: Unless otherwise noted, over operating temperature range with 4.5V ≤ VDD ≤ 18V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Logic ‘1’, High Input
Voltage
VIH
2.4
—
—
V
Logic ‘0’, Low Input Voltage
VIL
—
—
0.8
V
Input Voltage Range
VIN
-5
—
VDD + 0.3
V
Input Current
IIN
-10
—
+10
µA
0V ≤ VIN ≤ VDD
VOH
VDD – 0.025
—
—
V
DC TEST
Low Output Voltage
VOL
—
—
0.025
V
DC TEST
Output Resistance, High
ROH
—
3
5
Ω
IOUT = 10 mA, VDD = 18V
Output Resistance, Low
ROL
—
2.3
5
Ω
IOUT = 10 mA, VDD = 18V
Rise Time
tR
—
32
60
ns.
Figure 4-1, CL = 2,500 pF
Fall Time
tF
—
34
60
ns.
Figure 4-1, CL = 2,500 pF
Delay Time
tD1
—
50
100
ns.
Figure 4-1
Delay Time
tD2
—
65
100
ns.
Figure 4-1
IS
—
—
0.45
60
3
400
mA
µA
VIN = 3V
VIN = 0V
VDD
4.5
—
18
V
Input
Output
High Output Voltage
Switching Time (Note 1)
Power Supply
Power Supply Current
Operating Input Voltage
Note 1:
Switching times ensured by design.
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, all parameters apply with 4.5V ≤ VDD ≤ 18V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range (M)
TA
-55
—
+125
°C
Maximum Junction Temperature
TJ
—
—
+150
°C
Storage Temperature Range
TA
-65
—
+150
°C
θJA
—
150
—
°C/W
Package Thermal Resistances
Thermal Resistance, 8L-CERDIP
DS21933A-page 4
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
2.0
Note:
TYPICAL PERFORMANCE CURVES
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, TA = +25°C with 4.5V ≤ VDD ≤ 18V.
120
100
80
C L = 10,000 pF
80
TIME (nsec)
TIME (nsec)
100
60
C L = 4700 pF
40
C L = 10,000 pF
60
C L = 4700 pF
40
C L = 2200 pF
0
C L = 2200 pF
20
20
5
7
9
11
13
0
15
5
7
9
11
13
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 2-1:
Voltage.
Rise Time vs. Supply
FIGURE 2-4:
Voltage.
100
80
80
60
VDD = 5V
40
TIME (nsec)
TIME (nsec)
Fall Time vs. Supply
100
60
VDD = 12V
VDD = 18V
20
40
VDD = 5V
VDD = 12V
VDD = 18V
20
10
1000
10
1000
10,000
10,000
CAPACITIVE LOAD (pF)
FIGURE 2-2:
Load.
CAPACITIVE LOAD (pF)
Rise Time vs. Capacitive
FIGURE 2-5:
Load.
50
Fall Time vs. Capacitive
84
C L = 2200 pF
VDD = 18V
VDD = 15V
SUPPLY CURRENT (mA)
40
DELAY TIME (nsec)
15
t D2
30
t D1
20
10
70
56
42
500 kHz
28
200 kHz
14
20 kHz
0
–60
FIGURE 2-3:
Temperature.
–20
20
60
TA (°C)
100
140
Propagation Delay Time vs.
© 2005 Microchip Technology Inc.
0
0
FIGURE 2-6:
Capacitive Load.
100
1000
CAPACITIVE LOAD (pF)
10,000
Supply Current vs.
DS21933A-page 5
TC4420M/TC4429M
Note: Unless otherwise indicated, TA = +25°C with 4.5V ≤ VDD ≤ 18V.
50
5
C L = 2200 pF
VDD = 18V
40
30
ROUT (Ω )
TIME (nsec)
100 mA
4
t FALL
t RISE
20
50 mA
10 mA
3
10
0
–60
–20
FIGURE 2-7:
Temperature.
20
60
TA (°C)
100
2
140
Rise and Fall Times vs.
7
9
11
13
SUPPLY VOLTAGE (V)
15
FIGURE 2-10:
High-State Output
Resistance vs. Supply Voltage.
200
65
LOAD = 2200 pF
60
160
DELAY TIME (nsec)
DELAY TIME (nsec)
5
55
tD2
50
45
tD1
120
INPUT 2.4V
INPUT 3V
80
INPUT 5V
40
40
INPUT 8V AND 10V
0
35
4
6
FIGURE 2-8:
Supply Voltage.
8
10
12
14
16
SUPPLY VOLTAGE (V)
5
18
Propagation Delay Time vs.
6
7
8
9 10 11 12 13 14 15
VDD (V)
FIGURE 2-11:
Effect of Input Amplitude on
Propagation Delay.
1000
2.5
18V
10V
100
5V
10
2
ROUT (Ω )
SUPPLY CURRENT (mA)
CL = 2200 pF
100 mA
50 mA
1.5
10 mA
0
0
FIGURE 2-9:
Frequency.
DS21933A-page 6
100
1000
FREQUENCY (kHz)
10,000
Supply Current vs.
1
5
7
9
11
13
SUPPLY VOLTAGE (V)
15
FIGURE 2-12:
Low-State Output
Resistance vs. Supply Voltage.
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
Note: Unless otherwise indicated, TA = +25°C with 4.5V ≤ VDD ≤ 18V.
Crossover Area (A•S) x 10
-8
4
3
2
1
0
5
6
7 8
9 10 11 12 13 14 15
SUPPLY VOLTAGE (V)
* The values on this graph represent the loss seen
by the driver during one complete cycle. For a
single transition, divide the value by 2.
FIGURE 2-13:
Crossover Energy*.
© 2005 Microchip Technology Inc.
DS21933A-page 7
TC4420M/TC4429M
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin No.
8-Pin CERDIP
3.1
PIN FUNCTION TABLE
Symbol
1
VDD
2
INPUT
Description
Supply input, 4.5V to 18V
Control input, TTL/CMOS compatible input
3
NC
4
GND
Ground
No Connection
5
GND
Ground
6
OUTPUT
7
OUTPUT
8
VDD
CMOS push-pull output
CMOS push-pull output
Supply input, 4.5V to 18V
Supply Input (VDD)
The VDD input is the bias supply for the MOSFET driver
and is rated for 4.5V to 18V with respect to the ground
pins. The VDD input should be bypassed to ground with
a local ceramic capacitor. The value of the capacitor
should be chosen based on the capacitive load that is
being driven. A minimum value of 1.0 µF is suggested.
3.3
The MOSFET driver output is a low-impedance,
CMOS, push-pull style output capable of driving a
capacitive load with 6.0A peak currents. The MOSFET
driver output is capable of withstanding 1.5A peak
reverse currents of either polarity.
3.4
3.2
Control Input
The MOSFET driver input is a high-impedance,
TTL/CMOS-compatible input. The input circuitry of the
TC4420M/TC4429M MOSFET driver also has a
“speed-up” capacitor. This helps to decrease the
propagation delay times of the driver. Because of this,
input signals with slow rising or falling edges should not
be used, as this can result in double-pulsing of the
MOSFET driver output.
DS21933A-page 8
CMOS Push-Pull Output
Ground
The ground pins are the return path for the bias current
and the high peak currents that discharge the load
capacitor. The ground pins should be tied into a ground
plane or have very short traces to the bias supply
source return.
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
4.0
APPLICATIONS INFORMATION
+5V
90%
Input
VDD = 18V
0V
0.1 µF
2
tD2
tF
tR
90%
90%
Output
8
0.1 µF
Input
tD1
+18V
4.7 µF
1
10%
6
10%
10%
0V
Inverting Driver
TC4429M
Output
7
CL = 2,500 pF
+5V
90%
Input
4
5
0V
+18V
Input: 100 kHz,
square wave,
tRISE = tFALL ≤ 10 ns
FIGURE 4-1:
10%
tD1 90%
tR
Output
0V
10%
tD2
90%
tF
10%
Non-Inverting Driver
TC4420M
Switching Time Test Circuits.
© 2005 Microchip Technology Inc.
DS21933A-page 9
TC4420M/TC4429M
5.0
PACKAGING INFORMATION
5.1
Package Marking Information
8-Lead CERDIP (300 mil)
XXXXXXXX
XXXXXNNN
YYWW
Legend: XX...X
Y
YY
WW
NNN
e3
*
Note:
DS21933A-page 10
Example:
TC4420
e3
MJA^^256
0542
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.
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
8-Lead Ceramic Dual In-line – 300 mil (CERDIP)
E1
2
n
1
D
E
A2
A
c
L
B1
eB
B
A1
Units
Dimension Limits
n
p
Number of Pins
Pitch
Top to Seating Plane
Standoff §
Shoulder to Shoulder Width
Ceramic Pkg. Width
Overall Length
Tip to Seating Plane
Lead Thickness
Upper Lead Width
Lower Lead Width
Overall Row Spacing
*Controlling Parameter
JEDEC Equivalent: MS-030
A
A1
E
E1
D
L
c
B1
B
eB
p
MIN
.160
.020
.290
.230
.370
.125
.008
.045
.016
.320
INCHES*
NOM
8
.100
.180
.030
.305
.265
.385
.163
.012
.055
.018
.360
MAX
.200
.040
.320
.300
.400
.200
.015
.065
.020
.400
MILLIMETERS
NOM
8
2.54
4.06
4.57
0.51
0.77
7.37
7.75
5.84
6.73
9.40
9.78
3.18
4.13
0.20
0.29
1.14
1.40
0.41
0.46
8.13
9.15
MIN
MAX
5.08
1.02
8.13
7.62
10.16
5.08
0.38
1.65
0.51
10.16
Drawing No. C04-010
© 2005 Microchip Technology Inc.
DS21933A-page 11
TC4420M/TC4429M
NOTES:
DS21933A-page 12
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
APPENDIX A:
REVISION HISTORY
Revision A (February 2005)
• Original Release of this Document.
© 2005 Microchip Technology Inc.
DS21933A-page 13
TC4420M/TC4429M
NOTES:
DS21933A-page 14
© 2005 Microchip Technology Inc.
TC4420M/TC4429M
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.
XX
Device and Temperature
Range
Package
Device and
Temperature Range:
Package:
TC4420M: 6A High-Speed MOSFET Driver, Non-Inverting,
-55°C to +125°C
TC4429M: 6A High-Speed MOSFET Driver, Inverting,
-55°C to +125°C
Examples:
a)
TC4420MJA:
6A High-Speed MOSFET
Driver, Non-inverting,
8LD CERDIP package.
a)
TC4429MJA:
6A High-Speed MOSFET
Driver, Inverting,
8LD CERDIP package.
JA = Ceramic Dual In-line (300 mil Body), 8-lead
© 2005 Microchip Technology Inc.
DS21933A-page 15
TC4420M/TC4429M
NOTES:
DS21933A-page 16
© 2005 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 arising from this information and
its use. 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 Microchip 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, Migratable Memory, 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, MPASM, MPLIB, MPLINK,
MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail,
PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB,
rfPICDEM, Select Mode, Smart Serial, SmartTel, Total
Endurance and WiperLock 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.
© 2005, 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.
© 2005 Microchip Technology Inc.
DS21933A-page 17
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://support.microchip.com
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: 91-11-5160-8631
Fax: 91-11-5160-8632
Austria - Weis
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark - Ballerup
Tel: 45-4450-2828
Fax: 45-4485-2829
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: 86-591-8750-3506
Fax: 86-591-8750-3521
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
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
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
China - Qingdao
Tel: 86-532-502-7355
Fax: 86-532-502-7205
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
10/20/04
DS21933A-page 18
© 2005 Microchip Technology Inc.