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M
Features
TCM809/TCM810
General Description
The TCM809 and TCM810 are cost effective system supervisor circuits designed to monitor VDD in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The RESET output is typically driven active within 20 sec (SOT-23) or 65 sec (SC-70) of V DD falling through the reset voltage threshold. RESET is maintained active for a minimum of 140 msec after VDD rises above the reset threshold. The TCM810 has an active-high RESET output while the TCM809 has an active-low RESET output. The output of the TCM809/ TCM810 is valid down to VDD = 1V. Both devices are available in 3-Pin SOT-23B and SC-70 packages. The TCM809/TCM810 are optimized to reject fast transient glitches on the VDD line. Low supply current of 9 A (typ., V DD = 3.3V) makes these devices suitable for battery powered applications.
3-Pin Microcontroller Reset Monitors
* Precision VDD Monitor for 2.5V, 3.0V, 3.3V, 5.0V Nominal System Voltage Supplies * 140 msec Minimum RESET Timeout Period * RESET Output to VDD = 1.0V (TCM809) * Low Supply Current, 9 A (typ.) * VDD Transient Immunity * Small 3-Pin SC-70 and SOT-23B Packages * No External Components * Push-pull RESET output * Temperature Range: - Commercial, SC-70(E): -40C to +85C - Industrial, SOT-23, SC-70(V): -40C to +125C
Applications
* * * * * Computers Embedded Systems Battery Powered Equipment Critical Microcontroller Power Supply Monitoring Automotive
Pin Configurations
SOT-23B/SC-70
Typical Application Circuit
VDD 3 VDD TCM809 RESET GND 1 2 VDD PIC Microcontroller RESET INPUT (Active Low) GND Note: 3-Pin SOT-23B is equivalent to JEDEC TO-236
GND 1 TCM809 or TCM810 3 VDD
TCM809 RESET TCM810 (RESET)
2
2002 Microchip Technology Inc.
DS21661B-page 1
TCM809/TCM810
1.0 ELECTRICAL CHARACTERISTICS PIN FUNCTION TABLE
NAME GND Ground FUNCTION
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (VDD to GND) ..........................................6.0V RESET, RESET.................................... - 0.3V to (VDD +0.3V) Input Current, V DD.........................................................20 mA Output Current, RESET, RESET...................................20 mA dV/dt (VDD)............................................................. 100V/sec Operating Temperature Range.................... - 40C to +125C Power Dissipation (TA = 70C): 3-Pin SOT-23B (derate 4 mW/C above +70C) ......320 mW 3-Pin SC-70 (derate 2.17 mW/C above +70C)......174 mW Storage Temperature Range....................... - 65C to +150C Maximum Junction Temperature, TJ .............................. 150C
*Notice: Stresses above those listed under "Maximum ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
RESET (TCM809) RESET push-pull output remains low while VDD is below the reset voltage threshold and for 240 msec (140 msec min.) after VDD rises above reset threshold. RESET (TCM810) RESET push-pull output remains high while VDD is below the reset voltage threshold and for 240 msec (140 msec min.) after VDD rises above reset threshold. VDD Supply voltage (+2.5V, +3.0V, +3.3V, +5.0V)
ELECTRICAL CHARACTERISTICS
VDD = Full Range, TA = Operating Temperature Range, unless otherwise noted. Typical values are at TA = +25C, VDD = 5V for L/M/J, 3.3V for T/S, 3.0V for R, and 2.5V for Z (Note 1). Parameter VDD Range Supply Current (SOT-23) Supply Current (SC-70) Reset Threshold (Note 2) I CC I CC VTH Sym Min 1.0 1.2 -- -- -- -- 4.56 4.50 4.31 4.25 3.93 3.89 3.04 3.00 2.89 2.85 2.59 2.55 2.28 2.25 Reset Threshold Tempco VDD to Reset Delay, SOT-23 VDD to Reset Delay, SC-70 Reset Active Time-out Period, SOT-23 Reset Active Time-out Period, SC-70 RESET Output Voltage Low (TCM809) RESET Output Voltage High (TCM809) Note 1: 2: VOL -- -- -- 140 140 -- -- -- 0.8 VDD VDD - 1.5 Typ -- -- 24 17 12 9 4.63 -- 4.38 -- 4.00 -- 3.08 -- 2.93 -- 2.63 -- 2.32 -- 30 20 65 240 320 -- -- -- -- -- Max 5.5 5.5 60 50 30 25 4.70 4.75 4.45 4.50 4.06 4.10 3.11 3.15 2.96 3.00 2.66 2.70 2.35 2.38 -- -- -- 560 560 0.3 0.4 0.3 -- -- ppm/C sec sec msec msec V TCM809R/S/T/Z: VDD = VTH min, ISINK = 1.2 mA TCM809L/M/J: VDD = VTH min, ISINK = 3.2 mA VDD > 1.0V, ISINK = 50 A TCM809R/S/T/Z: VDD > VTH max, ISOURCE = 500 A TCM809L/M/J: VDD > VTH max, ISOURCE = 800 A VDD = VTH to (VTH - 100 mV) (Note 2) VDD = VTH to (VTH - 100 mV) (Note 2) Units V A A V Test Conditions TA = 0C to +70C TA = - 40C to +125C TCM8xxL/M: VDD < 5.5V TCM8xxR/S/T/Z: VDD < 3.6V TCM8xxL/M/J: VDD < 5.5V TCM8xxR/S/T/Z: VDD < 3.6V TCM8xxL: TCM8xxM: TCM809J: TCM8xxT: TCM8xxS: TCM8xxR: TCM8xxZ: TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C TA = +25C TA = - 40C to +125C
VOH
V
Production testing done at TA = +25C, over temperature limits ensured by QC screen. RESET Output for TCM809, RESET Output for TCM810.
DS21661B-page 2
2002 Microchip Technology Inc.
TCM809/TCM810
VDD = Full Range, TA = Operating Temperature Range, unless otherwise noted. Typical values are at TA = +25C, VDD = 5V for L/M/J, 3.3V for T/S, 3.0V for R, and 2.5V for Z (Note 1). Parameter RESET Output Voltage Low (TCM810) RESET Output Voltage High (TCM810) Note 1: 2: Sym VOL VOH Min -- -- 0.8 VDD Typ -- -- -- Max 0.3 0.4 -- Units V V Test Conditions TCM810R/S/T/Z: VDD = VTH max, ISINK = 1.2 mA TCM810L/M: VDD = VTH max, ISINK = 3.2 mA 1.8 < VDD < VTH min, ISOURCE = 150 A
Production testing done at TA = +25C, over temperature limits ensured by QC screen. RESET Output for TCM809, RESET Output for TCM810.
2002 Microchip Technology Inc.
DS21661B-page 3
TCM809/TCM810
2.0
2.1
APPLICATIONS INFORMATION
VDD Transient Rejection
The TCM809/TCM810 provides accurate VDD monitoring and reset timing during power-up, power-down, and brownout/sag conditions. These devices also reject negative-going transients (glitches) on the power supply line. Figure 2-1 shows the maximum transient duration vs. maximum negative excursion (overdrive) for glitch rejection. Any combination of duration and overdrive which lies under the curve will not generate a reset signal.
VDD VTH Overdrive
Combinations above the curve are detected as a brownout or power-down condition. Transient immunity can be improved by adding a capacitor in close proximity to the VDD pin of the TCM809/TCM810.
2.2
RESET Signal Integrity During Power-Down
Duration 400 Maximum Transient Duration (sec)
TA = +25C
The TCM809 RESET output is valid to VDD = 1.0V. Below this voltage the output becomes an "open circuit" and does not sink current. This means CMOS logic inputs to the microcontroller will be floating at an undetermined voltage. Most digital systems are completely shutdown well above this voltage. However, in situations where RESET must be maintained valid to VDD = 0V, a pull-down resistor must be connected from RESET to ground to discharge stray capacitances and hold the output low (Figure 2-2). This resistor value, though not critical, should be chosen such that it does not appreciably load RESET under normal operation (100 k will be suitable for most applications). Similarly, a pull-up resistor to V DD is required for the TCM810 to ensure a valid high RESET for V DD below 1.0V. VDD
320 240
160 80 0 TCM8XXL/M/J (SOT-23) TCM8XXZ/R/S/T (SOT-23) 1 5 100 1000 Reset Comparator Overdrive [V TH - VDD ] (mv)
VDD TCM809 RESET R1 100 k
GND
130 120
VDD to Reset Delay ( sec)
110 100 90 80 70 60 50 40 30 1 10
TCM8XXL/M/J (SC-70)
FIGURE 2-2: The addition of R1 at the RESET output of the TCM809 ensures that the RESET output is valid to VDD = 0V.
TCM8XXZ/R/S/T (SC-70)
100
1000
Reset Comparator Overdrive (mV)
[VTH - VDD ] (mv)
FIGURE 2-1: Maximum Transient Duration Overdrive for Glitch Rejection at 25C.
vs.
DS21661B-page 4
2002 Microchip Technology Inc.
TCM809/TCM810
2.3 Controllers and Processors With Bidirectional I/O Pins
BUFFER VDD TCM809 4.7 k RESET GND RESET GND Micro controller Buffered RESET To Other System Components
Some microcontrollers have bi-directional reset pins. Depending on the current drive capability of the controller pin, an indeterminate logic level may result if there is a logic conflict. This can be avoided by adding a 4.7 k resistor in series with the output of the TCM809/ TCM810 (Figure 2-3). 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 microcontroller, the buffer should be connected as shown with the solid line.
FIGURE 2-3: Interfacing Bidirectional RESET I/O.
the
TCM809
to
a
2002 Microchip Technology Inc.
DS21661B-page 5
TCM809/TCM810
3.0
Note:
TYPICAL PERFORMANCE CHARACTERISTICS
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.
VDD = 5V
35
TCM8xxZ/R/S/T, No Load
30
30 25 20 15 10 5 0
TCM8xxL/M/J, No Load
Supply Current (A)
VDD = 5V
25 20 15 10 5 0 -40 VDD = 1V VDD = 3V
Supply Current (A)
VDD = 3V
VDD = 1V
-20
0
20
40
60
80
100
125
-40
-20
0
20
40
60
80
100
125
Temperature (C)
Temperature (C)
FIGURE 3-1: SOT-23.
18
Supply
Current
vs.
Temperature,
FIGURE 3-4: SOT-23.
16
Supply
Current
vs.
Temperature,
TCM8xx/R/S/T/Z, No Load
16 VDD = 5V 14 14 12 10 8 6 4 2 0 -40 -20 0 20 40 60 80 100 120 VDD = 1V 2 0 -40 VDD = 3V
TCM8xx/L/M/J, No Load VDD = 5V
Supply Current ( A)
Supply Current ( A)
12 10 8 6 4 VDD = 1V
VDD = 3V
-20
0
20
40
60
80
100
120
Temperature (C)
Temperature (C)
FIGURE 3-2: SC-70.
Supply
Current
vs.
Temperature,
FIGURE 3-5: SC-70.
Power-Down Reset Delay (sec)
140 120 100 80 60 40
Supply
Current
vs.
Temperature,
Power-Down Reset Delay (sec)
100
TCM8xxL/M/J
TCM8xxZ/R/S/T
VOD = VTH - VDD VOD = 10 mV
VOD = VTH - VDD VOD = 10 mV
80 60 VOD = 20 mV 40
VOD = 20 mV
20
VOD = 100 mV VOD = 200 mV -20 0 20 40 60 80 100 125
VOD = 100 mV 20 0 -40 VOD = 200 mV -20 0 20 40 60 80 100 125
0 -40
Temperature (C)
Temperature (C)
FIGURE 3-3: Power-Down Temperature, SOT-23.
Reset
Delay
vs.
FIGURE 3-6: Power-Down Temperature, SOT-23.
Reset
Delay
vs.
DS21661B-page 6
2002 Microchip Technology Inc.
TCM809/TCM810
Power-up Reset Timeout (sec)
250
1.003
Normalized Reset Threshold
245 TCM8xxL/M/J 240
1.002 1.001 1.000 0.999 0.998 0.997
235 TCM8xxZ/R/S/T 230
225 -40
-20
0
20
40
60
80
100
125
-40
-20
0
20
40
60
80
100
125
Temperature (C)
Temperature (C)
FIGURE 3-7: Power-Up Temperature, SOT-23.
Reset
Time-out
vs.
FIGURE 3-9: Normalized Temperature, SOT-23.
Reset
Threshold
vs.
450
1.001
SC-70
Normalized Reset Threshold
400
Power-up Reset Timeout (sec)
350 300 250 200 150 100 50 0 -40 -20 0 20 40 60 80 100 120
1
0.999
0.998
0.997 -40 -20 0 20 40 60 80 100 120
Temperature (C)
Temperature (C)
FIGURE 3-8: Power-up Temperature, SC-70.
Reset
Time-out
vs.
FIGURE 3-10: Normalized Temperature, SC-70.
Reset
Threshold
vs.
2002 Microchip Technology Inc.
DS21661B-page 7
TCM809/TCM810
4.0
4.1
PACKAGING INFORMATION
Package Marking Information
3-Pin SOT-23B 3-Pin SC-70
Top Side
Part Number TCM809LENB TCM809MENB TCM809TENB TCM809SENB TCM809RENB TCM809JENB TCM809ZENB TCM809LVNB/TCM809LVLB TCM809MVNB/TCM809MVLB TCM809TVNB/TCM809TVLB TCM809SVNB/TCM809SVLB TCM809RVNB/TCM809RVLB TCM809JVNB/TCM809JVLB TCM809ZVNB/TCM809ZVLB Part Number TCM810LENB TCM810MENB TCM810TENB TCM810SENB TCM810RENB TCM810ZENB TCM810LVNB/TCM810LVLB TCM810MVNB/TCM810MVLB TCM810TVNB/TCM810TVLB TCM810SVNB/TCM810SVLB TCM810RVNB/TCM810RVLB TCM810ZVNB/TCM810ZVLB
Bottom Side
SOT-23/SC-70 J1 J2 J3 J4 J5 J6 J7 JZ JY JX JV JU JT
JS (SC-70 package only) SOT-23/SC-70 K1 K2 K3 K4 K5 K6 KZ KY KX KV KU KT (SC-70 package only)
Legend:
1 2 3 4 5 6
Part Number + temperature range and voltage (two-digit code) Part Number + temperature range and voltage (two-digit code) Lot ID number Year and work week Year and work week Year and work week
Note:
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.
DS21661B-page 8
2002 Microchip Technology Inc.
TCM809/TCM810
4.2 Taping Form
Component Taping Orientation for 3-Pin SOT-23 (JEDEC TO-236) Devices
User Direction of Feed Device Marking W
PIN 1
P Standard Reel Component Orientation for 713 Suffix Device (Mark Right Side Up)
Carrier Tape, Number of Components Per Reel and Reel Size: Package 3-Pin SOT-23B Carrier Width (W) 8 mm Pitch (P) 4 mm Part Per Full Reel 3000 Reel Size 7 in.
Component Taping Orientation for 3-Pin SC-70 (EIAJ) Devices
User Direction of Feed
Device Marking W
PIN 1
P Standard Reel Component Orientation for 713 Suffix Device (Mark Right Side Up)
Carrier Tape, Number of Components Per Reel and Reel Size: Package 3-Pin SC-70 Carrier Width (W) 8 mm Pitch (P) 4 mm Part Per Full Reel 3000 Reel Size 7 in.
2002 Microchip Technology Inc.
DS21661B-page 9
TCM809/TCM810
4.3 Packaging Information
3-Pin SOT-23B
.021 (0.54) .015 (0.37)
.104 (2.64) .083 (2.10)
.055 (1.40) .047 (1.20)
.024 (0.60) .017 (0.44)
.120 (3.05) .105 (2.67) .007 (0.18) .003 (0.08) .010 (0.25) .005 (0.13)
.040 (1.02) .031 (0.79) .004 (0.10) .001 (0.02)
8 MAX.
.081 (2.05) .070 (1.78)
3-Pin SC-70
.016 (0.40) .010 (0.25)
.094 (2.40) .071 (1.80)
.053 (1.35) .045 (1.15)
PIN 1
.051 (1.30) REF.
.087 (2.20) .071 (1.80) .039 (1.00) .031 (0.80) 10 MAX. .004 (0.10) .000 (0.00) .012 (0.30) .004 (0.10)
.007 (0.18) .004 (0.10)
DS21661B-page 10
2002 Microchip Technology Inc.
TCM809/TCM810
ON-LINE SUPPORT
Microchip provides on-line support on the Microchip World Wide Web (WWW) site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must have access to the Internet and a web browser, such as Netscape or Microsoft Explorer. Files are also available for FTP download from our FTP site.
Systems Information and Upgrade Hot Line
The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products. Plus, this line provides information on how customers can receive any currently available upgrade kits.The Hot Line Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world.
013001
Connecting to the Microchip Internet Web Site
The Microchip web site is available by using your favorite Internet browser to attach to: www.microchip.com The file transfer site is available by using an FTP service to connect to: ftp://ftp.microchip.com The web site and file transfer site provide a variety of services. Users may download files for the latest Development Tools, Data Sheets, Application Notes, User's Guides, Articles and Sample Programs. A variety of Microchip specific business information is also available, including listings of Microchip sales offices, distributors and factory representatives. Other data available for consideration is: * Latest Microchip Press Releases * Technical Support Section with Frequently Asked Questions * Design Tips * Device Errata * Job Postings * Microchip Consultant Program Member Listing * Links to other useful web sites related to Microchip Products * Conferences for products, Development Systems, technical information and more * Listing of seminars and events
2002 Microchip Technology Inc.
DS21661B-page 11
TCM809/TCM810
READER RESPONSE
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this Data Sheet. To: RE: Technical Publications Manager Reader Response Total Pages Sent
From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Device: TCM809/TCM810 Questions: 1. What are the best features of this document? Y N Literature Number: DS21661B FAX: (______) _________ - _________
2. How does this document meet your hardware and software development needs?
3. Do you find the organization of this data sheet easy to follow? If not, why?
4. What additions to the data sheet do you think would enhance the structure and subject?
5. What deletions from the data sheet could be made without affecting the overall usefulness?
6. Is there any incorrect or misleading information (what and where)?
7. How would you improve this document?
8. How would you improve our software, systems, and silicon products?
DS21661B-page 12
2002 Microchip Technology Inc.
TCM809/TCM810
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 Reset Threshold
Device:
X Temperature Range
XXXXX Package
Examples:
a) TCM809LENB713: SOT-23B-3-TR, Microcontroller 4.63V Reset Monitor, -40C to +85C, Tape and Reel.
VDD
TCM809: Supervisor circuit with active-low RESET output TCM810: Supervisor circuit with active-high RESET output L M J T S R Z E V = = = = = = = 4.63V 4.38V 4.00V 3.08V 2.93V 2.63V 2.32V
b)
TCM809LVLB713: SC-70-3-TR, Microcontroller 4.63V Reset Monitor, -40C to +125C, Tape and Reel.
VDD Reset Threshold:
c)
TCM809LVNB713: SOT-23B-3-TR, Microcontroller 4.63V Reset Monitor, -40C to +125C, Tape and Reel.
TCM810MENB713: SOT-23B-3-TR, Microcontroller 2.63V Reset Monitor, -40C to +85C, Tape and Reel. TCM810RVLB713: SOT-23B-3-TR, Microcontroller 2.63V Reset Monitor, -40C to +125C, Tape and Reel. TCM810TVLB713: SC-70-3-TR, Microcontroller 2.63V Reset Monitor, -40C to +125C, Tape and Reel.
a)
b) Temperature Range: = -40C to +85C = -40C to +125C c) Package: NB713 = SOT-23B, 3-pin (Tape and Reel) LB713 = SC-70, 3-pin (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. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
2002 Microchip Technology Inc.
DS21661B-page13
TCM809/TCM810
NOTES:
DS21661B-page 14
2002 Microchip Technology Inc.
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.
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2002 Microchip Technology Inc.
DS21661B - page 15
M
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2767 S. Albright Road Kokomo, Indiana 46902 Tel: 765-864-8360 Fax: 765-864-8387
France
Microchip Technology SARL Parc d'Activite du Moulin de Massy 43 Rue du Saule Trapu Batiment A - ler Etage 91300 Massy, France Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Los Angeles
18201 Von Karman, Suite 1090 Irvine, CA 92612 Tel: 949-263-1888 Fax: 949-263-1338
China - Shenzhen
Microchip Technology Consulting (Shanghai) Co., Ltd., Shenzhen Liaison Office Rm. 1315, 13/F, Shenzhen Kerry Centre, Renminnan Lu Shenzhen 518001, China Tel: 86-755-2350361 Fax: 86-755-2366086
New York
150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335
Germany
Microchip Technology GmbH Gustav-Heinemann Ring 125 D-81739 Munich, Germany Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
San Jose
Microchip Technology Inc. 2107 North First Street, Suite 590 San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955
Hong Kong
Microchip Technology Hongkong Ltd. Unit 901-6, Tower 2, Metroplaza 223 Hing Fong Road Kwai Fong, N.T., Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431
Italy
Microchip Technology SRL Centro Direzionale Colleoni Palazzo Taurus 1 V. Le Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883
Toronto
6285 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509
India
Microchip Technology Inc. India Liaison Office Divyasree Chambers 1 Floor, Wing A (A3/A4) No. 11, O'Shaugnessey Road Bangalore, 560 025, India Tel: 91-80-2290061 Fax: 91-80-2290062
United Kingdom
Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820
01/18/02
*DS21661B*
DS21661B-page 16
2002 Microchip Technology Inc.

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