TC74 MICROCHIP | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
Features
- Digital T emperature Sensing in SOT-23-5 Package Outputs Temperature as an 8-Bit Digital Word Simple Serial Port Interface Solid-State Temperature Sensing: - ±2°C Accuracy from +25°C to +85°C - ±3°C Accuracy from 0°C to +125°C 3.0 and 5.5V Operating Range L o w P o w e r : - 200 µA Operating -5 µA Standby Mode
Applications
Thermal Protection for Hard Disk Drives and other PC Peripherals PC Card Devices for Notebook Computers Low Cost Thermostat Controls Power Supplies Thermistor Replacement Package Type General Description The TC74 is a serially accessible digital temperature sensor particularly suited for low cost and small form- factor applications. T emperature data is converted from the onboard thermal sensing element and made available as an 8-bit digital word. Communication with the TC74 is accomplished via a 2- wire SMBus/I 2C™ compatible serial port. This bus also can be used to implement multi-drop/multi-zone monitoring. The SHDN bit in the CONFIG register can be used to activate the low power Standby mode. Temperature resolution is 1°C. Conversion rate is a nominal 8 samples/sec. Power consumption is only 200µAt y p ,( 5µA Standby, typ). Small size, low installed cost, and ease of use make the TC74 an ideal choice for implementing thermal management in a variety of systems. Functional Block Diagram GND VDD NC SDA SCLK 12345 TC74 TO-220 SOT-23 VDDGND 1 2 NC 5 4 SDA SCLK TC74 Internal Sensor (Diode) ∆∑ Modulator Temperature Register Serial Port Interface Control Logic SDA SCL Tiny Serial Digital Thermal Sensor
DS21462B-page 2 2002 Microchip Technology Inc. Device Selection Table NOTE: *Default Address. Part Number Package Address Temperature Range TC74A0-3.3VCT SOT-23A-5 1001 000 -40°C to +125°C TC74A1-3.3VCT SOT-23A-5 1001 001 -40°C to +125°C TC74A2-3.3VCT SOT-23A-5 1001 010 -40°C to +125°C TC74A3-3.3VCT SOT-23A-5 1001 011 -40°C to +125°C TC74A4-3.3VCT SOT-23A-5 1001 100 -40°C to +125°C TC74A5-3.3VCT* SOT-23A-5 1001 101* -40°C to +125°c TC74A6-3.3VCT SOT-23A-5 1001 110 -40°C to +125°C TC74A7-3.3VCT SOT-23A-5 1001 111 -40°C to +125°C TC74A0-5.0VCT SOT-23A-5 1001 000 -40°C to +125°C TC74A1-5.0VCT SOT-23A-5 1001 001 -40°C to +125°C TC74A2-5.0VCT SOT-23A-5 1001 010 -40°C to +125°C TC74A3-5.0VCT SOT-23A-5 1001 011 -40°C to +125°C TC74A4-5.0VCT SOT-23A-5 1001 100 -40°C to +125°C TC74A5-5.0VCT* SOT-23A-5 1001 101 -40°C to +125°C TC74A6-5.0VCT SOT-23A-5 1001 110 -40°C to +125°C TC74A7-5.0VCT SOT-23A-5 1001 111 -40°C to +125°C TC74A0-3.3VAT TO-220-5 1001 000 -40°C to +125°C TC74A1-3.3VAT TO-220-5 1001 001 -40°C to +125°C TC74A2-3.3VAT TO-220-5 1001 010 -40°C to +125°C TC74A3-3.3VAT TO-220-5 1001 011 -40°C to +125°C TC74A4-3.3VAT TO-220-5 1001 100 -40°C to +125°C TC74A5-3.3VAT TO-220-5 1001 101 -40°C to +125°C TC74A6-3.3VAT TO-220-5 1001 110 -40°C to +125°C TC74A7-3.3VAT TO-220-5 1001 111 -40°C to +125°C TC74A0-5.0VAT TO-220-5 1001 000 -40°C to +125°C TC74A1-5.0VAT TO-220-5 1001 001 -40°C to +125°C TC74A2-5.0VAT TO-220-5 1001 010 -40°C to +125°C TC74A3-5.0VAT TO-220-5 1001 011 -40°C to +125°C TC74A4-5.0VAT TO-220-5 1001 100 -40°C to +125°C TC74A5-5.0VAT TO-220-5 1001 101 -40°C to +125°C TC74A6-5.0VAT TO-220-5 1001 110 -40°C to +125°C TC74A7-5.0VAT TO-220-5 1001 111 -40°C to +125°C
2002 Microchip Technology Inc. DS21462B-page 3 TC74
1.0 ELECTRICAL
Absolute Maximum Ratings* *Stresses above those listed under "Absolute Maximum Rat- ings" 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. Expo- sure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC74 ELECTRICAL SPECIFICATIONS Electrical Characteristics: VDD =3 . 3 Vo r5 . 0 V(Note 5),- 4 0 ° C≤ TA ≤ 125°C, unless otherwise noted. Symbol Parameter Min Typ. Max Unit Test Conditions Power Supply VPOR Power-on Reset Threshold 1.2 — 2.2 V V DD Falling Edge or Rising Edge IDD Operating Current — 200 350 µAV DD =5 . 5 V Serial Port Inactive (Note 1) IDD-STANDBY Standby Supply Current — 5 10 µAV DD =3 . 3 V Serial Port Inactive (Note 1) Temperature to Bits Converter T ERR T emperature Accuracy TC74A -2 —+ 2 0°C < TA < +125°C -40°C < TA <0 ° C CR Conversion Rate 4 8 — Sps (Note 2) Serial Port Interface V IH Logic Input High 0.8 x V DD —— V VIL Logic Input Low — — 0.2 x V DD V VOL SDA Output Low — 0.4 0.6 V V IOL =3m A IOL =6m A (Note 3) CIN Input Capacitance SDA, SCL — 5 — pF ILEAK I/O Leakage -1 0.1 1 µA Note 1: Operating current is an average value integrated over multiple conversion cycles. Transient current may exceed this specification. 2: Maximum ensured conversion time after Power-on Reset (POR to DATA_RDY) is 250 msec. 3: Output current should be minimized for best temperature accuracy. Power dissipation within the TC74 will cause self-heating and temperature drift error. 4: SDA and SCLK must be connected to VDD or GND. supply range of 2.7V to 5.5V. Each part type is tested and specified for rated accuracy at its nominal supply voltage. As VDD varies from the nominal value, accuracy will degrade 1°C/V of VDD change.
DS21462B-page 4 2002 Microchip Technology Inc. TC74 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: VDD =3 . 3 Vo r5 . 0 V(Note 5),- 4 0 ° C≤ TA ≤ 125°C, CL = 80pF unless otherwise noted. Serial Port AC Timing Symbol Parameter Min Typ. Max Unit Test Conditions fSMB SMBus Clock Frequency 10 — 100 kHz tLOW Low Clock Period 4.7 — — µsec 10% to 10% tHIGH High Clock Period 4 — — µsec 90% to 90% tR tF SMBus Rise Time SMBus Fall Time 1000 300 nsec nsec 10% to 90% 90% to10% tSU(START) START Condition Setup Time (for repeated START Condition) 4—— µsec 90% SCLK to 10% SDA tH(START) START Condition Hold Time 4 — — µsec tSU-DATA Data In Setup Time 1000 — — nsec tH-DATA Data In Hold Time 1250 — — nsec tSU(STOP) STOP Condition Setup Time 4 — — µsec tIDLE Bus Free Time Prior to New Tran- sition 4.7 — — µsec tPOR Power-on Reset Delay — 500 — µsec V DD ≥ VPOR (Rising Edge) Note 1: Operating current is an average value integrated over multiple conversion cycles. Transient current may exceed this specification. 2: Maximum ensured conversion time after Power-on Reset (POR to DATA_RDY) is 250 msec. 3: Output current should be minimized for best temperature accuracy. Power dissipation within the TC74 will cause self-heating and temperature drift error. 4: SDA and SCLK must be connected to VDD or GND. supply range of 2.7V to 5.5V. Each part type is tested and specified for rated accuracy at its nominal supply voltage. As VDD varies from the nominal value, accuracy will degrade 1°C/V of VDD change.
2002 Microchip Technology Inc. DS21462B-page 5 TC74
2.0 PIN DESCRIPTIONS
T h ed e s c r i p t i o n so ft h ep i n sa r el i s t e di nT a b l e2 - 1 . TABLE 2-1: PIN FUNCTION TABLE Pin Number (5-Pin SOT-23) Pin Number (5-Pin TO-220) Symbol Type Description 1 1 NC None No Internal Connection. 2 3 GND Power System Ground
35 V DD Power Power Supply Input
4 4 SCLK Input SMBus Serial Clock 5 2 SDA Bi-directional SMBus Serial Data
DS21462B-page 6 2002 Microchip Technology Inc. Timing Diagrams tSU(START) t H(START) tSU-Data tSU(STOP) tIDLE A = START Condition B = MSB of Address Clocked into Slave C = LSB of Address Clocked into Slave D = R/W Bit Clocked into Slave A B CD E FG H IJ K E = Slave Pulls SDA Line Low F = Acknowledge Bit Clocked into Master G = MSB of Data Clocked into Master H = LSB of Data Clocked into Master I = Acknowledge Clock Pulse J = STOP Condition K = New START Condition SCL SDA SMBUS READ Timing Diagram tSU(START) t H(START) tSU-DATA tH-DATA t SU(STOP) t IDLE A = START Condition B = MSB of Address Clocked into Slave C = LSB of Address Clocked into Slave D = R/W Bit Clocked into Slave E = Slave Pulls SDA Line Low A B CD E FG H I J KL M F = Acknowledge Bit Clocked into Master G = MSB of Data Clocked into Slave H = LSB of Data Clocked into Slave I = Slave Pulls SDA Line Low J = Acknowledge Clocked into Master K = Acknowledge Clock Pulse L = STOP Condition, Data Executed by Slave M = New START Condition ILOW IHIGH SCL SDA SMBUS Write Timing Diagram IHIGHILOW
2002 Microchip Technology Inc. DS21462B-page 7 TC74
3.0 DETAILED DESCRIPTION
3.1 Functional Description
The TC74 acquires and converts temperature information from its onboard solid-state sensor with a resolution of ±1°C. It stores the data in an internal register which is read through the serial port. The system interface is a slave SMBus. The temperature data can be read at any time through the SMBus port. Eight SMBus addresses are programmable for the TC74, which allows for a multi-sensor configuration. Also, there is low power Standby mode when temperature acquisition is suspended.
3.1.1 STANDBY MODE
The TC74 allows the host to put it into a low power (IDD =5 µA, typical) Standby mode. In this mode, the A/D converter is halted and the temperature data registers are frozen. The SMBus port operates normally. Standby mode is enabled by setting the SHDN bit in the CONFIG register. Table 3-1 summarizes this operation. TABLE 3-1: STANDBY MODE OPERATION
3.1.2 SMBUS SLAVE ADDRESS
The TC74 is internally programmed to have a default SMBus address value of 1001 101b. Seven other addresses are available by custom order (contact factory).
3.2 Serial Port Operation
The Serial Clock input (SCL) and bi-directional data port (SDA) form a 2-wire bi-directional serial port for programming and interrogating the TC74. The following conventions are used in this bus architecture: TABLE 3-2: SERIAL BUS CONVENTIONS All transfers take place under control of a host, usually a CPU or microcontroller, acting as the Master, which provides the clock signal for all transfers. The TC74 always operates as a Slave. The serial protocol is illustrated in Figure 3-1 All data transfers have two phases; all bytes are transferred MSB first. Accesses are initiated by a START condition, followed by a device address byte and one or more data bytes. The device address byte includes a Read/Write selection bit. Each access must be terminated by a STOP Condition. A convention called Acknowledge (ACK) confirms receipt of each byte. Note that SDA can change only during periods when SCL is LOW (SDA changes while SCL is HIGH are reserved for START and STOP Conditions). SHDN Bit Operating Mode 0N o r m a l
1 Standby
Transmitter The device sending data to the bus. Receiver The device receiving data from the bus. Master The device which controls the bus: initiating transfers (START), generating the clock, and terminating transfers. (STOP) Slave The device addressed by the master. START A unique condition signaling the beginning of a transfer indicated by SDA falling (High-Low) while SCL is high. STOP A unique condition signaling the end of a transfer indicated by SDA rising (Low-High) while SCL is High. ACK A Receiver acknowledges the receipt of each byte with this unique condition. The Receiver drives SDA low during SCL high of the ACK clock-pulse. The Master provides the clock p u l s ef o rt h eA C Kc y c l e . Busy Communication is not possible because the b u si si nu s e . NOT Busy When the bus is idle, both SDA and SCL will remain high. Data Valid The state of SDA must remain stable during the High period of SCL in order for a data bit to be considered valid. SDA only changes state while SCL is low during normal data transfers. (See START and STOP condi- tions.)
DS21462B-page 8 2002 Microchip Technology Inc. FIGURE 3-1: SMBUS PROTOCOLS
3.3 START Condition (S)
The TC74 continuously monitors the SDA and SCL lines for a START condition (a HIGH to LOW transition of SDA while SCL is HIGH) and will not respond until this condition is met.
3.4 Address Byte
Immediately following the START Condition, the host must transmit the address byte to the TC74. The states of A1 and A0 determine the 7-bit SMBus address for the TC74. The 7-bit address transmitted in the serial bit stream must match for the TC74 to respond with an Acknowledge (indicating the TC74 is on the bus and ready to accept data). The 8-bit in the Address Byte is a Read/Write Bit. This bit is a ‘1’ for a read operation or ‘0’ for a write operation. During the first phase of any transfer this bit will be set = 0 to indicate that the command byte is being written.
3.5 Acknowledge (ACK)
Acknowledge (ACK) provides a positive handshake between the host and the TC74. The host releases SDA after transmitting 8 bits. The host then generates a ninth clock cycle to allow the TC74 to pull the SDA line LOW. This action acknowledges that the TC74 successfully received the previous eight bits of data or address.
3.6 Data Byte
After a successful ACK of the address byte, the host must transmit the data byte to be written or clock in the data to be read. (See the appropriate timing diagrams). ACK will be generated after a successful write of a data byte into the TC74.
3.7 STOP Condition (P)
Communications must be terminated by a STOP condition (a LOW to HIGH transition of SDA while SCL is HIGH). The STOP Condition must be communicated by the transmitter to the TC74. NOTE: Refer to Timing Diagrams for serial bus timing. S Address WR ACKCommandACK Data ACK P
8 Bits7 Bits 8 Bits
Slave Address Command Byte: selects which register you are writing to. Data Byte: data goes into the register set by the command byte. Write Byte Format Read Byte Format S Address WR ACKCommandACK S Address RD ACK Data NACK P
7 Bits 8 Bits 7 Bits 8 Bits
Slave Address Command Byte: selects which register you are reading from. Slave Address: repeated due to change in data- flow direction. Data Byte: reads from the register set by the command byte. Receive Byte Format S Address RD ACK Data Nack P
7 Bits 8 Bits
Data Byte: reads data from the register commanded by the last Read Byte or Write B yte transmission. S = START Condition P = STOP Condition Shaded = Slave Transmission
2002 Microchip Technology Inc. DS21462B-page 9 TC74
4.0 REGISTER SET AND
PROGRAMMER’S MODEL TABLE 4-2: CONFIGURATION REGISTER (CONFIG); 8 BITS, READ/ WRITE) FIGURE 4-1: DATA_RDY, SHDN OPERATION LOGIC DIAGRAM
4.1 Temperature Register (TEMP),
8 Bits, READ ONLY
The binary value (2’s complement format) in this regis- ter represents temperature of the onboard sensor following a conversion cycle. The registers are automatically updated in an alternating manner. TABLE 4-3: TEMPERATURE REGISTER (TEMP) In the temperature data registers, each unit value repre- sents one degree (Celsius). The value is in 2’s complement binary format such that a reading of 0000 0000b corresponds to 0°C. Examples of this tempera- ture to binary value relationship are shown in Table 4-4
4.2 Register Set Summary
The TC74 register set is summarized in Table 4-5. All r e g i s t e r sa r e8b i t sw i d e . TABLE 4-1: COMMAND BYTE
DESCRIPTION
(SMBUS READ_BYTE AND WRITE_BYTE) COMMAND CODE FUNCTION RTR 00h Read T emperature (TEMP) RWCR 01h Read/Write Configuration (CONFIG) BIT POR FUNCTION TYPE OPERATION D[7] 0 STANDBY Switch Read/ Write 1 = standby, 0 = normal D[6] 0 Data Ready* Read Only 1=r e a d y 0 = not ready D[5]-D[0] 0 Reserved - Always returns zero when read N/A N/A *Note: DATA_RDY bit RESET at power-up and SHDN enable. VDD DATA_RDY SHDN tconv tconv MSB X X X X X X LSB TABLE 4-4: TEMPERATURE TO DIGITAL VALUE CONVERSION (TEMP) ACTUAL TEMP . REGISTERED TEMP . BINARY HEX +130.00°C +127°C 0111 1111 +127.00°C +127°C 0111 1111 +126.50°C +127°C 0111 1111 +25.25°C +25°C 0001 1001 +0.50°C +1°C 0000 0001 +0.25°C 0°C 0000 0000 0.00°C 0°C 0000 0000 -0.25°C 0°C 0000 0000 -0.50°C 0°C 0000 0000 -0.75°C -1°C 1111 1111 -1.00°C -1°C 1111 1111 -25.00°C -25°C 1110 0111 -25.25°C -25°C 1110 0110 -54.75°C -55°C 1100 1001 -55.00°C -55°C 1100 1001 -65.00°C -65°C 1011 1111 TABLE 4-5: TC74 REGISTER SET SUMMARY NAME DESCRIPTION POR State READ WRITE TEMP Internal Sensor Temp. (2’s Complement) 0000 0000b* CONFIG CONFIG Register 0000 0000b *Note: The TEMP resigister will be immediately updated by the A/D converter after the DATA_RDY Bit goes High.
DS21462B-page 10 2002 Microchip Technology Inc.
5.0 PACKAGING INFORMATION
5.1 Package Marking Information
1 & 2 = part number code + temperature range and voltage 3 = year and quarter code 4 = lot ID number TABLE 5-1: PACKAGE MARKING CODES SOT-23 1234 TC74 (V) Code TC74A0-3.3VCT V0 TC74A1-3.3VCT V1 TC74A2-3.3VCT V2 TC74A3-3.3VCT V3 TC74A4-3.3VCT V4 TC74A5-3.3VCT V5 TC74A6-3.3VCT V6 TC74A7-3.3VCT V7 TC74A0-5.0VCT U0 TC74A1-5.0VCT U1 TC74A2-5.0VCT U2 TC74A3-5.0VCT U3 TC74A4-5.0VCT U4 TC74A5-5.0VCT U5 TC74A6-5.0VCT U6 TC74A7-5.0VCT U7
2002 Microchip Technology Inc. DS21462B-page 11 TC74
5.2 Taping Forms
5.3 Package Dimensions
Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 5-Pin SOT-23A 8 mm 4 mm 3000 7 in Carrier Tape, Number of Components Per Reel and Reel Size User Direction of Feed Device Marking PIN 1 Standard Reel Component Orientation TR Suffix Device (Mark Right Side Up) W P .071 (1.80) .059 (1.50) .122 (3.10) .098 (2.50) .075 (1.90) REF. .020 (0.50) .012 (0.30) PIN 1 .037 (0.95) REF. .122 (3.10) .106 (2.70) .057 (1.45) .035 (0.90) .006 (0.15) .000 (0.00) .024 (0.60) .004 (0.10) .004 (0.09) SOT-23A-5 Dimensions: inches (mm)
DS21462B-page 12 2002 Microchip Technology Inc. NOTES:
2002 Microchip Technology Inc. DS21462B-page 13 TC74 SALES AND SUPPORT Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom- mended workarounds. T o determine if an errata sheet exists for a particular device, please contact one of the following: 1. Your local Microchip sales office 2. The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 3. 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.
DS21462B-page 14 2002 Microchip Technology Inc. NOTES:
2002 Microchip Technology Inc. DS21462B-page 15 TC74 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 T echnology 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 com- ponents in life support systems is not authorized except with express written approval by Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, FilterLab, K EELOQ,m i c r o I D ,M P L A B ,P I C ,P I C m i c r o ,P I C M A S T E R , PICSTART, PRO MATE, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Tech- nology Incorporated in the U.S.A. and other countries. dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. Serialized Quick Turn Programming (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. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999 and Mountain View, California in March 2002. The Company’s quality system processes and procedures are QS-9000 compliant for its PICmicro ® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, non-volatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001 certified.
DS21462B-page 16 2002 Microchip Technology Inc. AMERICAS 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: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Atlanta
500 Sugar Mill Road, Suite 200B
Atlanta, GA 30350 Tel: 770-640-0034 Fax: 770-640-0307 Boston
2 Lan Drive, Suite 120
Westford, MA 01886 Tel: 978-692-3848 Fax: 978-692-3821 Chicago
333 Pierce Road, Suite 180
Itasca, IL 60143 Tel: 630-285-0071 Fax: 630-285-0075 Dallas
4570 Westgrove Drive, Suite 160
Addison, TX 75001 Tel: 972-818-7423 Fax: 972-818-2924 Detroit Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334 Tel: 248-538-2250 Fax: 248-538-2260 Kokomo 2767 S. Albright Road Kokomo, Indiana 46902 Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles
18201 Von Karman, Suite 1090
Irvine, CA 92612 Tel: 949-263-1888 Fax: 949-263-1338 New York
150 Motor Parkway, Suite 202
Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335 San Jose Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955 Toronto
6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509 ASIA/PACIFIC Australia Microchip Technology Australia Pty Ltd Suite 22, 41 Rawson Street Epping 2121, NSW Australia Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Microchip Technology Consulting (Shanghai) Co., Ltd., Beijing Liaison Office Unit 915 Bei Hai Wan Tai Bldg. No. 6 Chaoyangmen Beidajie Beijing, 100027, No. China Tel: 86-10-85282100 Fax: 86-10-85282104 China - Chengdu Microchip Technology Consulting (Shanghai) Co., Ltd., Chengdu Liaison Office Rm. 2401, 24th Floor, Ming Xing Financial Tower No. 88 TIDU Street Chengdu 610016, China Tel: 86-28-6766200 Fax: 86-28-6766599 China - Fuzhou Microchip Technology Consulting (Shanghai) Co., Ltd., Fuzhou Liaison Office Unit 28F, World Trade Plaza No. 71 Wusi Road Fuzhou 350001, China Tel: 86-591-7503506 Fax: 86-591-7503521 China - Shanghai Microchip Technology Consulting (Shanghai) Co., Ltd. Room 701, Bldg. B Far East International Plaza No. 317 Xian Xia Road Shanghai, 200051 Tel: 86-21-6275-5700 Fax: 86-21-6275-5060 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 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 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 Japan Microchip Technology Japan K.K. Benex S-1 6F 3-18-20, Shinyokohama Kohoku-Ku, Yokohama-shi Kanagawa, 222-0033, Japan Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 Tung Hua North Road Taipei, 105, Taiwan Tel: 886-2-2717-7175 Fax: 886-2-2545-0139 EUROPE Denmark Microchip Technology Nordic ApS Regus Business Centre Lautrup hoj 1-3 Ballerup DK-2750 Denmark Tel: 45 4420 9895 Fax: 45 4420 9910 France Microchip Technology SARL Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
91300 Massy, France
D-81739 Munich, Germany Tel: 49-89-627-144 0 Fax: 49-89-627-144-44 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 United Kingdom Arizona Microchip Technology Ltd.
505 Eskdale Road
Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 03/01/02 WORLDWIDE SALES AND SERVICE *D S2 146 2B *