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Obsolete Device
TC3403
+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor and Microprocessor Reset Circuit
Features
* 16-bit Resolution at Eight Conversions Per Second, Adjustable Down to 10-bit Resolution at 512 Conversions Per Second * 1.8V - 5.5V Operation, Low Power Operating 280A; Sleep: 93A * Four Single-ended Inputs with Built-in Multiplexer * microPortTM Serial Bus Requires only two Interface Lines * Uses Internal or External Reference * Automatically Enters Sleep Mode when not in use * VDD Monitor and Reset Generator Operational in Shutdown Mode * Early Warning Power Fail Detector, also suitable as Wake-Up Timer Operational in Shutdown Mode
Package Type
16-Pin PDIP 16-Pin QSOP
IN1+ IN2+ IN3+ IN4+ PFI VTH REFIN GND 1 2 3 4 5 6 7 8 16 15 14 VDD SCLK A0 A1 RESET PFO SDAT REFOUT
TC3403
13 12 11 10 9
Applications
* Consumer Electronics, Thermostats, CO Monitors, Humidity Meters, Security Sensors * Embedded Systems, Data Loggers, Portable Equipment * Medical Instruments
General Description
The TC3403 is a low cost, low power analog-to-digital converter based on Microchip's Sigma-Delta technology. It will perform 16-bit conversions (15-bit plus sign) at up to eight per second. The TC3403 is optimized for use as a microcontroller peripheral in low cost, battery operated systems. A voltage reference is included, or an external reference can be used. A VDD monitor with a reset generator provides Power-on Reset and Brownout protection while an extra threshold detector is suitable for use as an early warning Power Fail detector, or as a Wake-up Timer. The TC3403's 2-wire microPortTM digital interface is used for starting conversions and for reading out the data. Driving the SCLK line low starts a conversion. After the conversion starts, each additional falling edge (up to six) detected on SCLK for t4 seconds reduces the A/D resolution by one bit and cuts conversion time in half. After a conversion is completed, clocking the SCLK line puts the MSB through LSB of the resulting data word onto the SDAT line, much like a shift register. The part automatically sleeps when not performing a data conversion. The TC3403 is available in a 16-Pin PDIP and a 16-Pin QSOP package.
Device Selection Table
Part Number TC3403VPE Package 16-Pin PDIP (Narrow) Temperature Range 0C to +85C 0C to +85C
TC3403VQR 16-Pin QSOP Narrow)
(c) 2005 Microchip Technology Inc.
DS21412C-page 1
TC3403
Typical Application
VBATT
+ + + + VBATT R1 130k R2 110k
IN1+ IN2+ IN3+ IN4+
VDD
SDAT SCLK A0 A1
VBATT R6 100k
I/01 I/02 I/03 I/04
VCC
TC3403
VTH RESET
Controller
RST VBATT R7 100k
REFIN REFOUT C1 0.1F R3 390
PFO PFI VBATT R4 1M
I/05 I/06
C2 10F
Functional Block Diagram
VDD IN1+ IN2+ IN3+ IN4+ + - + - + - + - 1.193V REFOUT x2 Data - Modulator Shift Reg. CONV done CONVCLK CLKOUT REFIN SDAT
TC3403
1 of 4 AMux
A0
SET DQ CLR
Clock Generator Start and Control Conv. Circuitry
SCLK
A1
SET DQ CLR Reset Delay Timer
VTH
- + 1.205V
RESET
PFI
- + 1.205V GND
PFO
DS21412C-page 2
(c) 2005 Microchip Technology Inc.
TC3403
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 ..................................................... 6.0V Voltage on Pins: PFO, RESET .......................... (GND - 0.3V) to 5.5V Input Voltage (All Other Pins): .................................. (GND - 0.3V) to (VDD + 0.3V) Operating Temperature Range ................. 0C to 85C Storage Temperature ........................ -65C to +150C
TC3403 DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = 25C and VDD = 2.7V, unless otherwise specified. Boldface type specifications apply for temperatures of 0C to 85C. VREF = 1.25V, Internal Clock Frequency = 520kHz. Symbol Power Supply VDD IDD IDDSLEEP Supply Voltage Supply Current, During Data Conversion Supply Current, Sleep Mode 1.8 -- -- -- Accuracy (Differential Inputs) RES INL VOS VNOISE CMR FSE PSRR INn VIN Input Voltage Absolute Voltage Range on INn Input Bias Current CIN RIN Input Sampling Capacitance Differential Input Resistance -- GND -- -- -- -- -- 1 2 2.0 VDD VDD 100 -- -- V V nA pF M Note 2 Note 1 Resolution Integral Non-Linearity Offset Error Referred to input Common Mode Rejection Full Scale Error Power Supply Rejection Ratio -- -- -- -- -- -- -- 16 .0038 -- 60 75 0.4% 75 -- -- 0.9 -- -- -- -- Bits %FSR %FSR VDD = 2.7V IN+, IN- = 0V At DC VDD = 2.5V to 3.5V -- 280 93 106 5.5 -- 115 120 V Parameter Min Typ Max Unit Test Conditions
A A A
TA = +25C
Vrms
dB %FS dB
REFIN, REFOUT VREF IREF VREFOUT REFSINK REFSRC REFIN Voltage Range REFIN Input Current REFOUT Voltage REFOUT Current Sink Capability REFOUT Current Source Capability 0 -- -- -- 300 -- 1 1.193 10 -- 1.25 -- -- -- -- V A V A
A
Note 1: Differential input voltage defined as (VIN+ - VIN-). 2: Resistance from INn+ to INn- or INn to GND. 3: @ VDD = 1.8V, ISOURCE 200A.
(c) 2005 Microchip Technology Inc.
DS21412C-page 3
TC3403
TC3403 DC ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: TA = 25C and VDD = 2.7V, unless otherwise specified. Boldface type specifications apply for temperatures of 0C to 85C. VREF = 1.25V, Internal Clock Frequency = 520kHz. Symbol SCLK, A0, A1, ENABLE VIL VIH ILEAK Input Low Voltage Input High Voltage Leakage Current -- 0.7 x VDD -- -- -- 1 0.3 x VDD -- -- V V Parameter Min Typ Max Unit Test Conditions
A
V V IOL = 1.5mA ISOURCE = 400A (Note 3)
SDAT, RESET, PFO VOL VOH VDDMIN VTH, PFI VCCPFI VTHR PFI Input Voltage Range VTH, PFI Input Current Threshold (VTH, PFI) Threshold Hysteresis Threshold Tempco 0 -0.1 -- -- -- -- .01 1.23 30 30 VDD 0.1 -- -- -- V Output Low Voltage Output High Voltage (SDAT) Minimum VDD for PFO, RESET Valid -- 0.9 x VDD -- -- -- 1.1 0.4 -- 1.3
A
A
V mV ppm/C
Note 1: Differential input voltage defined as (VIN+ - VIN-). 2: Resistance from INn+ to INn- or INn to GND. 3: @ VDD = 1.8V, ISOURCE 200A.
TC3403 AC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = 25C and VDD = 2.7V, unless otherwise specified. Boldface type specifications apply for temperatures of 0C to 85C. VREF = 1.25V, Internal Clock Frequency = 520kHz. Symbol t1 t2 t3 Parameter Resolution Reduction Clock Width Resolution Reduction Clock Width Conversion Time (15-bit Plus Sign) Conversion Time (14-bit Plus Sign) Conversion Time (13-bit Plus Sign) Conversion Time (12-bit Plus Sign) Conversion Time (11-bit Plus Sign) Conversion Time (10-bit Plus Sign) Conversion Time (9-bit Plus Sign) t4 t5 t6 t7 t8 t9 t10 t11 Resolution Reduction Window SCLK to Data Valid Address Setup Address Hold Acknowledge Delay RESET Active Timeout Period PFO Delay RESET Delay Min 1 1 -- -- -- -- -- -- -- -- 1000 0 1000 -- -- -- 5 Typ -- -- 125 t3/2.0 t3/4.0 t3/7.8 t3/15.1 t3/28.6 t3/51.4 t3/85.7 -- -- -- -- t3*2 25 -- Max -- -- -- -- -- -- -- -- -- -- -- -- -- 1000 -- -- 64 Unit sec sec msec msec msec msec msec msec msec msec nsec nsec nsec nsec msec sec sec Test Conditions Width of SCLK (Negative) Width of SCLK (Positive) 16-bit Conversion, TA = 25C (Note 1) 15-bit Conversion 14-bit Conversion 13-bit Conversion 12-bit Conversion 11-bit Conversion 10-bit Conversion Width of SCLK SCLK Falling Edge to SDAT Valid Address Valid to SCLK SCLK to Address Valid Hold SCLK to SDAT Delay Delay from POR or Brown-out Recovery to RESET = VOH PFI to PFO Delay Delay VTH Falling at 10V/msec to RESET Low
Note 1: Nominal temperature drift is -2830ppm/C for temperature less than 25C and -1340ppm/C for temperatures greater than 25C.
DS21412C-page 4
(c) 2005 Microchip Technology Inc.
TC3403
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Pin No. (16-Pin PDIP) (16-Pin QSOP) 1 2 3 4 5 6
PIN FUNCTION TABLE
Symbol IN1+ IN2+ IN3+ IN4+ PFI VTH Description Analog Input. This is the positive terminal of a true differential input with the negative input tied internally to GND. See Section 1.0, Electrical Characteristics. Analog Input. This is the positive terminal of a true differential input with the negative input tied internally to GND. See Section 1.0, Electrical Characteristics. Analog Input. This is the positive terminal of a true differential input with the negative input tied internally to GND. See Section 1.0, Electrical Characteristics. Analog Input. This is the positive terminal of a true differential input with the negative input tied internally to GND. See Section 1.0, Electrical Characteristics. Analog Input. This is the positive input to an internal comparator used as a threshold detector. The negative input is tied to an internal reference. Analog Input. This is the positive input to the internal comparator used to monitor the voltage supply. The negative input is tied to an internal reference. When VTH falls below the internal reference, the reset generator drives RESET low. See Section 1.0, Electrical Characteristics. Analog Input. The converter's reference voltage is the differential between this pin and ground times two. It may be tied directly to REFOUT or scaled using a resistor divider. Any user supplied reference voltage less than 1.25 may be used in place of REFOUT. Ground Terminal. Analog Output. The internal reference connects to this pin. It may be scaled externally and tied to the REFIN input to provide the converter's reference voltage. Care must be taken in connecting external circuitry to this pin. This pin is in a high impedance state during Sleep mode. Digital Output (push-pull). This is the microPortTM serial data output. SDAT is driven low while the TC3403 is converting data, effectively providing a "busy" signal. After the conversion is complete, every high to low transition on the SCLK pin puts a bit from the resulting data word on the SDAT pin (from MSB to LSB). Digital Output (open drain). This is the output of the internal threshold detector. When PFI is less than the internal reference, PFO is driven low. Digital Output (open drain). This is the output of the VDD monitor reset generator. RESET is driven low when a Power-on Reset or Brown-out condition is detected. See Section 1.0, AC Electrical Characteristics. Digital Input. Controls analog multiplexer in conjunction with A0 to select one of the four Input channels. This address is latched at the falling edge of the SCLK, which starts an A/D conversion. A1, A0 = 00 = Input 1; 01 = Input 2; 10 = Input 3; 11 = Input 4. Digital Input. Controls analog multiplexer in conjunction with A1 to select one of four Input channels. This address is latched at the falling edge of the SCLK, which starts an A/D conversion. A1, A0 = 00 = Input 1; 01 = Input 2; 10 = Input 3; 11 = Input 4. Digital Input. This is the microPortTM serial clock input. The TC3403 comes out of Sleep mode and a conversion cycle begins when this pin is driven low. After the conversion starts, each additional falling edge (up to six) detected on SCLK for t4 seconds reduces the A/D resolution by one bit. When the conversion is complete, the data word can be shifted out on the SDAT pin by clocking the SCLK pin. Power Supply Input.
7
REFIN
8 9
GND REFOUT
10
SDAT
11 12
PFO RESET
13
A1
14
A0
15
SCLK
16
VDD
(c) 2005 Microchip Technology Inc.
DS21412C-page 5
TC3403
3.0 DETAILED DESCRIPTION
TABLE 3-1:
The TC3403 has a 16-bit sigma-delta A/D converter. It has two differential inputs, an analog multiplexer, a VDD monitor with reset generator and an early warning Power Fail detector. See the Typical Application circuit and the Functional Block diagram. The key components of the TC3403 are described below. Also refer to Figure 3-5, A/D Operational Flowchart and the Timing Diagrams, Figure 3-1, Figure 3-2 and Figure 3-3.
DATA CONVERSION WORD VS. VOLTAGE INPUT (REFIN = 1.193V)
INn+ - INn- (Volts) 2.38596 (Positive Full Scale) 72.8 E -6 0 -72.8 E -6 -2.38596 (Negative Full Scale) Reserved Code
Data Word 0111 1111 1111 1111 0000 0000 0000 0001 0000 0000 0000 0000 1111 1111 1111 1111 1000 0000 0000 0001 1000 0000 0000 0000
3.1
A/D Converter Operation
When the TC3403 is not converting, it is in Sleep mode with both the SCLK and SDAT lines high. An A/D conversion is initiated by a high to low transition on the SCLK line at which time the internal clock of the TC3403 is started and the address value (A0 and A1) is internally latched. The address value steers the analog multiplexer to select the input channel to be converted. Each additional high to low transition of SCLK (following the initial SCLK falling edge) during the time interval t4, will decrement the conversion resolution by one bit and reduce the conversion time by one half. The time interval t4 is referred to as the resolution reduction window. The minimum conversion resolution is 10-bits so any more than 6 SCLK transitions during t4 will be ignored. After each high to low transition of SCLK, in the t4 interval, the SDAT output is driven high by the TC3403 to acknowledge that the resolution has been decremented. When the SCLK returns high or the t4 interval ends, the SDAT line returns low (see Figure 3-2). When the conversion is complete SDAT is driven high. The TC3403 now enters Sleep mode and the conversion value can be read as a serial data word on the SDAT line.
The SCLK input has a filter which rejects any positive or negative pulse of width less than 50nsec to reduce noise. The rejection width of this pulse can vary between 50nsec and 750nsec depending on processing parameters and supply voltage. Figure 3-1 and Table 3-2 show information for determining the mode of operation for the TC3403 by recording the value of SDAT for SCLK in a high, then low, then high state. For example, if SCLK goes through a 1-0-1 transition and the corresponding values of SDAT are 1-1-0, then the SCLK falling edge started a new data conversion. A 0-1-0 for SDAT would have indicated a resolution reduction had occurred. This is useful if the microcontroller has a Watchdog Reset or otherwise loses track of where the TC3403 is in the conversion and data readout sequence. The microcontroller can simply transition SCLK until it "finds" a Start Conversion condition.
FIGURE 3-1:
SCLK
SCLK, SDAT LOGIC STATE DIAGRAM
3.2
Reading the Data Word
SDAT A B C
After the conversion is complete and SDAT goes high, the conversion value can be clocked serially onto the SDAT line by high to low transitions of the SCLK. The data word is in two's compliment format with the sign bit clocked onto the SDAT line, first followed by the MSB and ending in the LSB. For a 16-bit conversion the data word would consist of a sign bit followed by 15 magnitude bits, Table 3-1 shows the data word versus input voltage for a 16-bit conversion. Note that the full scale input voltage range is (2 REFIN - 1LSB). When REFOUT is fed back directly to REFIN, an LSB is 73V for a 16-bit conversion, as REFOUT is typically 1.193V. Figure 3-4 shows typical SCLK and SDAT waveforms for 16, 12 and 10-bit conversions. Note that any complete convert and read cycle requires 17 negative edge clock pulses. The first is the convert command. Then, up to six of these can occur in the resolution reduction window, t4, to decrement resolution. The remaining pulses clock out the conversion data word.
TABLE 3-2:
A 1 0 x x B 1 1 1 0
SCLK, SDAT LOGIC STATE
C 0 0 1 0 Status Start Conversion Resolution Reduction Data Transfer Data Transfer or Busy*
*Note: The code X00 has a dual meaning: Data Transfer or
Busy converting. To avoid confusion, the user should send only the required number of pulses for the desired resolution, then wait for SDAT to rise to 1, indicating conversion is complete before clocking SCLK again to read out data bits.
DS21412C-page 6
(c) 2005 Microchip Technology Inc.
TC3403
FIGURE 3-2:
t2 SCLK t1
CONVERSION AND DATA OUTPUT TIMING
t4 SDAT
t8
t8 DN (MSB)
t5 DN-1 DN-2
Sleep Mode D0 (LSB)
t3 Data Conversion Complete t6 t7 A0, A1 Start Conversion and Resolution Control Timing Data Output Timing
FIGURE 3-3:
Volts
RESET AND POWER FAIL TIMING
VDD
1.80 1.23 1.20 1.1 0 Time t9 t11 t9 t11 VTH Hysteresis
RESET
VDD Reset Generator Timing
Volts
VDD PFI
1.23 1.20 1.1 0
Hysteresis
Time t10 t10 t10 t10
PFO
Power Fail Comparator Timing
(c) 2005 Microchip Technology Inc.
DS21412C-page 7
TC3403
FIGURE 3-4: SCLK AND SDAT WAVEFORMS FOR 16, 12 AND 10-BIT CONVERSIONS
16-bit Data Conversion, Data Word A5A5h SCLK t3a SDAT Data Conversion Complete 16-bit Data Conversion, Long Start Pulse, Data Word 5A5Ah SCLK > t3a SDAT Data Conversion Complete 12-bit Conversion, Data Word = AB3h SCLK < t4 SDAT Data Conversion Complete 10-bit Conversion with "Extra" Data Reduction Clocks, Data Word = 3A4h SCLK < t4 t3g SDAT Data Conversion Complete
t3e
DS21412C-page 8
(c) 2005 Microchip Technology Inc.
TC3403
FIGURE 3-5: A/D OPERATIONAL FLOWCHART
POR
SDAT = Low
Sleep SDAT = High
CONVCLK = 2m? (Conversion Done?)
No
Yes
No
SCLK Hgh to Low? Yes
Power Down Analog, Conversion Complete, SDAT = High
Power Up Analog, Start CONVCLK (= 0), Start Conversion, Resolution = 2m (m = 16), Latch Input Channel Address (if applicable).
SCLK High to Low? Yes
No
SCLK Low to High transition? Yes SDAT = Low
No SDAT = Dm; m=m-1
m 0? CONVCLK < 2 9? Yes SDAT = High Internal Reset No SCLK High to Low? Yes Sleep No No
Yes
No
A/D Resolution > 210? Yes Reduce A/D Resolution by 1-bit (m = m - 1); SDAT = High
(c) 2005 Microchip Technology Inc.
DS21412C-page 9
TC3403
3.3 VDD Monitor 3.4 Power Fail Detector
The TC3403 RESET output is high impedance provided the voltage at VTH is greater than the internal voltage reference. This reference is approximately the same value as the voltage appearing at REFOUT. When VTH is less than the internal reference, RESET is pulled low. When VTH rises above the internal reference voltage again, RESET is held low for the reset active timeout period, t9, before being released. The RESET output is ensured to be valid for VDD = 1.3V to 5.5V. When used to generate a Power-on or Brown-out Reset, an external resistor network is required to divide the appropriate VDD threshold down to 1.23V at the VTH input, (See the Typical Application circuit). For example, to generate a POR for a VDD at 3V- 10%, then the values of R1 and R2 should be 137k and 115k respectively. Since RESET is an open drain, it can be wired-OR'ed with another open drain or external switch if desired. The Power Fail detector is a comparator in which the inverting input is connected to the internal voltage reference. The non-inverting input is the PFI pin of the TC3403 and the PFO pin is the active low, open drain output. This comparator is suitable as an early warning fail or low battery indicator. In a typical application, where a voltage regulator is being used to supply power to a system, the Power Fail comparator would monitor the input voltage to the regulator while the VDD monitor would measure the output voltage of the regulator. Both PFO and RESET would drive interrupt pins of a microcontroller. The Power Fail detector may be used as a Wake-up or Watchdog Timer. The Typical Application circuit shows an RC network on PFI with the capacitor tied to a tristated C I/O pin. If R4 is 1 M and C2 is 10F, the time constant is roughly ten seconds. The C resets the RC network by driving the I/O tied to PFI low and then tristating it. The RC network will ramp to 1.23V in roughly 9 seconds, assuming a VBATT of 3.0V. With PFO tied to a C input or interrupt, the C will see a low to high transition on PFO when the voltage on PFI exceeds 1.23V. The PFO output is specified to be valid for VDD = 1.3 to 5.5V.
DS21412C-page 10
(c) 2005 Microchip Technology Inc.
TC3403
4.0
4.1
PACKAGING INFORMATION
Package Marking Information
Package marking data not available at this time.
4.2
Taping Forms
Component Taping Orientation for 16-Pin QSOP (Narrow) Devices
User Direction of Feed
PIN 1
W
P Standard Reel Component Orientation for TR Suffix Device
Carrier Tape, Reel Size, Number of Components Per Reel and Reel Size
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
16-Pin QSOP (N)
12 mm
8 mm
2500
13 in
(c) 2005 Microchip Technology Inc.
DS21412C-page 11
TC3403
4.3 Package Dimensions
16-Pin PDIP (Narrow)
PIN 1
.270 (6.86) .240 (6.10)
.045 (1.14) .030 (0.76) .770 (19.56) .740 (18.80) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) .310 (7.87) .290 (7.37)
.040 (1.02) .020 (0.51)
.014 (0.36) .008 (0.20) .400 (10.16) .310 (7.87)
10 MAX.
.110 (2.79) .090 (2.29)
.070 (1.78) .045 (1.14)
.022 (0.56) .015 (0.38) Dimensions: inches (mm)
16-Pin QSOP (Narrow)
PIN 1
.157 (3.99) .150 (3.81) .244 (6.20) .228 (5.80)
.196 (4.98) .189 (4.80)
.010 (0.25) .004 (0.10) .069 (1.75) .053 (1.35) 8 MAX.
.010 (0.25) .007 (0.19) .050 (1.27) .016 (0.41) Dimensions: inches (mm)
.025 (0.635) TYP.
.012 (0.31) .008 (0.21)
DS21412C-page 12
(c) 2005 Microchip Technology Inc.
TC3403
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.
(c) 2005 Microchip Technology Inc.
DS21412C-page 13
TC3403
NOTES:
DS21412C-page 14
(c) 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.
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DS21412C-page 15
WORLDWIDE SALES AND SERVICE
AMERICAS
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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: 86-28-8676-6200 Fax: 86-28-8676-6599 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 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 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7250 Fax: 86-29-8833-7256
ASIA/PACIFIC
India - Bangalore Tel: 91-80-2229-0061 Fax: 91-80-2229-0062 India - New Delhi Tel: 91-11-5160-8631 Fax: 91-11-5160-8632 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea - Gumi Tel: 82-54-473-4301 Fax: 82-54-473-4302 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Malaysia - Penang Tel: 60-4-646-8870 Fax: 60-4-646-5086 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350
EUROPE
Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 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
10/31/05
DS21412C-page 16
(c) 2005 Microchip Technology Inc.

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