Datasheet TC3405VQR, TC3405VPE Datasheet (Microchip Technology)

TC3405

T

16-Bit, Low Cost, Low Power Sigma-Delta A/D Converter

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
250µA; Sleep: 35µA

• microPort™ Serial Bus Requires only two
Interface Lines

• Uses Internal or External Reference

• Automatically Enters Sleep Mode when not in use

• One Differential and Three Single-ended Inputs
with Built-In Multiplexer

•V

Monitor and Reset Generator Operational in

DD

Shutdown Mode

Applications

• Consumer Electronics, Thermostats, CO
Monitors, Humidity Meters, Security Sensors

• Embedded Systems, Data Loggers,
Portable Equipment

• Medical Instruments

Device Selection Table

Part

Number

TC3405VPE 16-PinPDIP(Narrow) 0°Cto+85°C
TC3405VQR 16-PinQSOPNar row) 0°Cto+85°C

Package

Temperature

Range

Package Type

16-Pin PDIP

16-Pin QSOP

IN1+

V

REF

GND

1

215

IN1-

314

IN2

IN3

IN4

TH

IN

TC3405

413

512

611

710

89

16

V

DD

SCLK

A0

A1

RESET

ENABLE

SDAT

REF

OU

General Description

The TC3405 is a l ow cost, low power analog-to-digital
converter based on Microchip’s Sigma-Delta technol­ogy. I t will per form 16-bit conversions (15-bit pl us sign)
at up to eight per second. The TC3405 is optimized for
use as a microcontroller peripheral in low cost, battery
operated systems. A voltage reference is included, or
an external referencecan be used. A V
a resetgeneratorprovidesPower-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 TC3405’s 2-wire microPort™ digital interface is
used for starting conversions and for reading out the
data. Driving the SCLK line l ow starts a conversion.
Afterthe conversion starts, each additional falling edge
(up to six) detected on SCLK for t
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 t hrough LSB of the resulting
dataword onto the SDATline,much like a shift register.
The part automatically sleeps when not performing a
data conversion.

TheTC3405isavailableina16-PinPDIPanda16-Pin
QSOP package.

monitor with

DD

seconds reduces

4



2002 Microchip TechnologyInc. DS21414B-page 1

TC3405

Typical Application

V

BATT

+

Input 1

–

+

Input 2

+

Input 3

Input 4 +

V

BATT

130kΩ

110kΩ

C1

0.1µF

Functional Block Diagram

IN1+

IN1-

IN2

IN3

IN4

A0

R1

R2

±10%

+

–

+

–

+

–

+

–

R3

390

IN1+
IN1-

IN2+
IN3+

IN4+

V

TH

REF

REF

1 of 4

AMux

SET

DQ

CLR

V

DD

ENABLE

TC3405

RESET

IN

OUT

TC3405

Start

Conv.

SDAT

SCLK

AO

AI

V

BATT

R6

100k

V

DD

Σ – ∆

Modulator

CONV done

CONVCLK

Clock Generator

and Control

Circuitry

1.193V

Data
Shift
Reg.

CLKOUT

x2

I/01
I/02

I/03
I/04

RST

V

CC

µ

Controller

REF

OUT

REF

IN

SDAT

SCLK

ENABLE

DS21414B-page 2

SET

A1

V

TH

–

+

1.23V

DQ

CLR

Reset Delay Timer

GND

RESET



2002 Microchip TechnologyInc.

TC3405

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

Absolute Maximum Ratings*

Supply Voltage .....................................................6.0V

operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affectdevice reliability.

Voltage on Pin:

RESET

................................ (GND – 0.3V) to 5.5V

Input Voltage (All Other Pins):

................................. (GND – 0.3V) to (V

DD

+0.3V)

Operating Temperature Range ................. 0°C to 85°C

Storage Temperature ........................ -65°C to +150°C

TC3405 DC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: TA= 25°C and VDD= 2.7V, unless otherwise specified. Boldface type specifications apply for

temperaturesof 0°C to 85°C. V

Symbol Parameter Min Typ Max Unit Test Conditions

Power Supply

V

DD

I

DD

I

DDSLEEP

Supply Voltage 1.8 — 5.5 V
SupplyCurrent, DuringDataConversion — 250 — µA
Supply Current, Sleep Mode — 35 80 µATA=+25°C

Accuracy (Dif fere ntial Inputs)

RES Resolution — 16 — Bits
INL IntegralNon-Linearity — .0038 — %FSR V
V

OS

V

NOISE

Offset Error — — ±0.9 %FSR IN+, IN- = 0V

Referred to input — 60 — µVrms
CMR Common Mode Rejection — 75 — dB At DC
FSE Full Scale Error — 0.4% — %FS
PSRR Power SupplyRejection Ratio — 75 — dB V

INn+, INn-, INn

± Differential Input Voltage — — V

V

IN

Absolute Voltage RangeonINn+, INn-, INn GND — V

Input Bias Current — 1 100 nA
C

IN

R

IN

REF

V

REF

I

REF

V

REFOUT

REF
REF

Input Sampling Capacitance — 2 — pF

Differential Input Resistance — 2.0 — MΩ Note 2

REF

IN,

OUT

REFINVoltage Range 0 — 1.25 V

REFINInput Current — 1 — µA

SINK
SRC

REF

REF

REF

Voltage 1.175 1.193 — V

OUT

Current Sink Capability — 10 — µA

OUT

Current Source Capability 300 — — µA

OUT

Note 1: Differential input voltage defined as (V

2: Resistance from INn+ to INn- or INn to GND.
3: @V

=1.8V,I

DD

= 1.25V, Internal Clock Frequency = 520kHz.

REF

+–VIN-).

IN

≤ 200µA.

SOURCE

— 38 50

DD
DD

µA

DD

DD

V Note 1
V

=2.7V

=2.5Vto3.5V



2002 Microchip TechnologyInc. DS21414B-page 3

TC3405

TC3405 DC ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: TA= 25°C and VDD= 2.7V, unless otherwise specified. Boldface type specifications apply for

temperaturesof 0°C to 85°C. V

Symbol Parameter Min Typ Max Unit Test Conditions

SCLK, A0 A1, ENABLE

V

IL

V

IH

I

LEAK

Input Low Voltage — — 0.3 x

Input High Voltage 0.7xV
Leakage Current — 1 — µA

SDAT, RESET

V

OL

V

OH

V

DDMIN

V

TH

V

CCPFI

V

THR

,PFI

OutputLow Voltage — — 0.4 V IOL=1.5mA
OutputHighVoltage (SDAT) 0.9 x V
MinimumVDDfor PFO, RESET Valid — 1.1 1.3 µA

PFI Input VoltageRange 0 — V

, PFI Input Current -0.1 .01 0.1 µA

V

TH

Threshold (VTH,PFI) — 1.23 — V
Threshold Hysteresis — 30 — mV
Threshold Tempco — 30 — ppm/°C

Note 1: Differential input voltage defined as (V

2: Resistance from INn+ to INn- or INn to GND.
3: @V

=1.8V,I

DD

= 1.25V, Internal Clock Frequency = 520kHz.

REF

+–VIN-).

IN

≤ 200µA.

SOURCE

DD

DD

V

V

DD

——V

——VI

DD

SOURCE

V

=400µA (Note 3 )

TC3405 AC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: T

temperaturesof 0°C to 85°C. V

Symbol Parameter Min Typ Max Unit Test Conditions

t

1

t

2

t

3

Resolution Reduction Clock Width 1 — — µsec Width of SCLK (Negative)
Resolution Reduction Clock Width 1 — — µsec Width of SCLK (Positive)
Conversion Time(15-bit Plus Sign) — 125 — msec 16-bit Conversion, TA=25°C(Note 1)
Conversion Time (14-bit Plus Sign) — t
Conversion Time (13-bit Plus Sign) — t
Conversion Time (12-bit Plus Sign) — t
Conversion Time(11-bit Plus Sign) — t
Conversion Time (10-bit Plus Sign) — t
Conversion Time(9-bitP lus Sign) — t

t

4

t

5

t

6

t

7

t

8

t

9

t

11

Resolution Reduction Window — t3/85.7 — msec Widthof SCLK
SCLK to Data Valid 1000 — — nsec SCLK FallingEdgeto SDAT Valid
Address Setup 0 — — nsec Address Valid to SCLK
Address Hold 1000 — — nsec SCLK to AddressValidHold
Acknowledge Delay — — 1000 nsec SCLKto SDAT Delay
RESET Active Time-out Period — t3*2 — msec Delay from POR or Brown-out

RESET Delay 5 — 64 µsec Delay VTHFalling at 10V/msec to

Note 1: Nominal temperature driftis -2830ppm/C° for temperature less than 25°C and -1340ppm/°C for temperatures

greater than 25°C

= 25°C and VDD= 2.7V, unless otherwise specified. Boldface type specifications apply for

A

= 1.25V, Internal Clock Frequency = 520kHz.

REF

/2.0 — msec 15-bit Conversion

3

/4.0 — msec 14-bit Conversion

3

/7.8 — msec 13-bit Conversion

3

/15.1 — msec 12-bitConversion

3

/28.6 — msec 11-bit Conversion

3

/51.4 — msec 10-bitConversion

3

Recovery to RESET

RESET

Low

=V

.

OH

DS21414B-page 4



2002 Microchip TechnologyInc.

TC3405

2.0 PIN DESCRIPTIONS

ThedescriptionsofthepinsarelistedinTable2-1.

TABLE 2-1: PIN FUNCTION TABLE

Pin No.

(16-Pin PDIP)

(16-Pin QSOP)

1 IN1+ AnalogInput. This is the positive terminalof a true differential input consisting of IN1+ and IN1-.

2 IN1- AnalogInput. This is the negative terminalof a true differential input consisting of IN1+ and IN1-.

3 IN2 Analog Input. This is the positive terminal of a true differential input with the negative input tied

4 IN3 Analog Input. This is the positive terminal of a true differential input with the negative input tied

5 IN4 Analog Input. This is the positive terminal of a true differential input with the negative input tied

6V

7REF

8 GND Ground Terminal.
9REF

10 SDAT Digital Output (push-pull). This is the microPort™ serial data output.S DAT is driven low while the

11 ENABLE Digital Input.Whenthisinput control is pulled low,t he partisinternally restarted.Thatis, any data

12 RESET

13 A1 DigitalInput. Controlsanalogmultiplexerinconjunction withA0 to select one of thefour input

14 A0 DigitalInput. Controlsanalogmultiplexerinconjunction withA1 to select one of thefour input

15 SCLK DigitalInput. This is the microPort™ serial clock input. The TC3405comes out of Sleep mode and a

16 V

Symbol Description

V

= (IN1+ – IN-). See Section 1.0, Electrical Characteristics.

IN1

= (IN+ – IN-) IN1- can swing to, but not below, ground. See Section 1.0, Electrical Characteristics.

V

IN1

internally to GND. See Section 1.0, Electrical Characteristics.

internally to GND. See Section 1.0, Electrical Characteristics.

internally to GND. See Section 1.0, Electrical Characteristics.
AnalogInput. This is the positive input to the internal comparator used to monitor the voltage supply.

TH

The negative input is tied to an internal reference. When V
reset generator drives RESET

AnalogInput. The converter’sreference voltageis the differentialbetween this pin and ground times

IN

two.ItmaybetieddirectlytoREF
reference voltage less than 1.25 may be used in place of REF

AnalogOutput. The internalreferenceconnects to this pin. It may be scaledexternally, and tiedto the

OUT

REF

inputto providetheconverter’s reference voltage.Caremustbe taken in connectingexternal

IN

circuitry to this pin. This pin is in a high impedance state during Sleep mode.

TC3405is converting data, effectively providing a “busy” signal. Afterthe conversion is complete,
every highto low transition on the SCLKpin putsa bit from the resulting data word on theSDAT pin
(from MSB to LSB).

conversion or data read sequence is cleared and the part goes into Sleep mode. When ENABLE
returns high, the part resumes normaloperation.

Digital Output(open drain).This is the outputoftheVDDmonitor reset generator. RESET is driven low
when a Power-on Reset or Brown-out condition is detected.
See Section 1.0, AC Electrical Characteristics.

channels. This address is latched at the falling edgeof the SCLK, which startsan A/D conversion.
A1, A0 = 00 = Input 1; 01 = Input 2; 10 = Input 3; 11 = Input 4.

channels. Thisaddress is latchedatthe fallingedgeofthe SCLK, whichstarts an A/Dconversion.A1,

A0=00=Input1;01=Input2;10=Input3;11=Input4.

conversion cycle begins when this pin is driven low. After the conversion starts, each additional
fallingedge(uptosix) detectedon SCLK for t
the conversion is complete, the data word can be shifted out on the S DAT pin by clocking the SCLK
pin.

Power SupplyInput.

DD

low. See Section 1.0, Electrical Characteristics.

or scaled using a resistor divider. Any user supplied

OUT

seconds, reduces the A/D resolution by one bit. When

4

falls belowtheinternal reference, the

TH

.

OUT



2002 Microchip TechnologyInc. DS21414B-page 5

TC3405

3.0 DETAILED DESCRIPTION

The TC3405 has a 16-bit sigma-delta A/D converter. It
has one differentialinput,three single-endedinputs,an
analog multiplexerand a V
ator. See the Typical Application circuit and the
Functional Block diagram. The key components of the
TC3405 are described below.

Alsoreferto Figure 3-5, A/D OperationalFlowchart and
the Timing Diagrams, Figure 3-1, Figure 3-2 and
Figure 3-3.

3.1 A/D Converter Operation

When the TC3405 is not converting, it is in Sleep mode
with both the SCLK and SDAT lines high. An A/D
conversionis initiated by a high to low transition on the
SCLK line at which time the internal clock of the
TC3405 is started and the address value (A0 and A1)
is internally latched. The addressvalue steers theana­log multiplexer to select the input channel to be
converted. Each additional high to low transition of
SCLK (following the initial SCLK falling edge) during
thetimeintervalt
resolutionbyonebit and reduce the conversion time by
one half. The time interval t
resolution reduction window. The minimum conversion
resolution is 10-bits so any more than 6 SCLK
transitionsduring t

After each high to low transition of SCLK, in the t
interval,the SDAT output is driven high by the TC3405
to acknowledge that the resolution has been decre­mented. W hen the SCLK returns hi gh or the t
ends,theSDAT line returnslow(seeFigure 3-2). When
the conversion is complete SDAT is driven high. The
TC3405 now enters Sleep mode and the conversion
value can be read as a serial data word on the SDAT
line.

4,

will be ignored.

4

monitorwith reset gener-

DD

will decrement the conversion

is referred to as the

4

interval

4

TABLE 3-1: DATA CONVERSION WORD

VS. VOLTAGE INPUT
(REF

Data Word INn+ –INn-(Volts)

0111 1111 1111 1111 2.38596 (PositiveFullScale)
0000 0000 0000 0001 72.8 E -6
0000 0000 0000 0000 0
1111 1111 1111 1111 -72.8 E -6
1000 0000 0000 0001 -2.38596 (Negative Full Scale)
1000 0000 0000 0000 Reserved Code

The SCLK i nput has a f ilter which r ejects 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 Table3-2 show information for deter­mining the mode of operation for the TC3401 part by
recording the value of SDAT for SCLK in a high, t hen
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
starteda new dataconversion.A 0-1-0 for SDAT would
have indicated a resolution reduction had occurred.
This i s useful if the microcontroller has a Watchdog
Reset or otherwise loses track of where the TC3405 is
in the conversion and data readout sequence. The

4

microcontroller can simply transition SCLK until it
“finds” a StartConversion condition.

= 1.193V)

IN

FIGURE 3-1: SCLK, SDAT LOGIC

STATE DIAGRAM

SCLK

3.2 Reading the Data Word

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
datawordisintwo’scomplimentformat 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 c onsist 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 REF
REF

is fed back directly to REFIN,anLSBis73µV

OUT

for a 16-bit conversion, as REF
Figure 3-4 shows typical SCLK and SDAT waveforms

for 16, 12 and 10-bit conversions. Note that any com­pleteconvert and read cycle requires17 negative edge
clock pulses. The first is the convert command. Then,
up to six of these can occur in the resolution reduction
window, t

, to decrement resolution. The remaining

4

pulses clock out the conversion data word.

DS21414B-page 6

– 1LSB). When

IN

is typically 1.193V.

OUT

SDAT

A

BC

TABLE 3-2: SCLK, SDAT LOGIC STATE

AB C Status

1 1 0 StartConversion
0 1 0 Resolution Reduction
x 1 1 Data Transfer
x 0 0 Data Transfer or Busy*

*Note: The code X00has a dualmeaning: DataTransferor

Busy converting. Toavoid 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 againto read out data bits.



2002 Microchip TechnologyInc.

FIGURE 3-2: CONVERSION AND DATA OUTPUT TIMING

t

2

t

SCLK

SDAT

1

t

t

4

t

3

t

8

8

D

N

(MSB)

Data Conversion

Complete

t6t

7

A0, A1

Start Conversion and Resolution Control Timing Data Output Timing

FIGURE 3-3: RESET AND POWER FAIL TIMING

TC3405

t

5

D

N-1

D

N-1

D

0

(LSB)

Sleep

Mode

1.80

1.23

1.20

1.1

0

RESET

Volts

Hysteresis

V

DD

V

TH

Time

t

9

Reset Generator Timing

V

DD

t

t

9

11

t

11



2002 Microchip TechnologyInc. DS21414B-page 7

TC3405

FIGURE 3-4: SCLK AND SDAT WAVEFORMS FOR 16, 12 AND 10-BIT CONVERSIONS

16-bit Data Conversion,

SCLK

t3a

SDAT

Data Conversion

Complete

Data Word A5A5h

SCLK

SDAT

SCLK

SDAT

SCLK

SDAT

> t3a

Data Conversion

Complete

< t

4

t3e

< t

4

t3g

16-bit Data Conversion, Long Start Pulse,

Data Word 5A5Ah

12-bit Conversion,

Data Word = AB3h

Data Conversion

Complete

10-bit Conversion with "Extra"

Data Reduction Clocks, Data Word = 3A4h

DS21414B-page 8

Data Conversion

Complete



2002 Microchip TechnologyInc.

FIGURE 3-5: A/D OPERATIONAL FLOWCHART

TC3405

POR

Sleep

SDAT = High

No

Channel Address (if applicable).

SCLK

Hgh to Low?

Yes

Power Up Analog,

Start CONVCLK (= 0),

Start Conversion,

Resolution = 2m

(m = 16), Latch Input

SCLK

Low to High

transition?

Yes

No

SDAT = Low

CONVCLK = 2m?

(Conversion Done?)

Yes

Power Down Analog,

Conversion Complete,

SDAT = High

SCLK

High to Low?

Yes

SDAT = Dm;

m = m – 1

No

No

SDAT = Low

CONVCLK

No

No

SCLK

High to Low?

Resolution

> 2

Reduce A/D

Resolution by 1-bit

(m = m – 1);

SDAT = High

< 2

A/D

9

10

?

Yes

Yes

?

Yes

No

m ≥ 0?

No

SDAT = High

Internal Reset

Sleep

Yes



2002 Microchip TechnologyInc. DS21414B-page 9

TC3405

3.3 VDDMonitor

The TC3405 RESET output is in high impedance
provided the voltage at V
voltage reference. This reference is approximately the
samevalue as the voltage appearingat REF
V

is lessthan the internalreference,RESETispulled

TH

low. When V

rises above the internal reference

TH

voltage again, RESET
time-out period, t

, before being released. The RESET

9

output is valid for VDD=1.3Vto5.5V.
When used to generate a Power-on or Brown-out

Reset,an external resistor network is required to divide
the appropriate V
V

input, (See the Typical Application circuit). For

TH

DD

example, to generate a POR for a V
values of R1 and R2 should be 137kΩ and 115kΩ
respectively.

Since RESET

is an open drain, it can be wired-OR’ed

with another open drain or external switch if desired.

is greater than the internal

TH

.When

OUT

is held low for the reset active

threshold down to 1.23V at the

at 3V -10%, the

DD

DS21414B-page 10



2002 Microchip TechnologyInc.

4.0 PACKAGING INFORMATION

4.1 Package Marking Information

Package marking data not available at this time.

4.2 Taping Forms

Component Taping Orientation for 16-Pin QSOP (Narrow) Devices

PIN 1

TC3405

User Direction of Feed

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



2002 Microchip TechnologyInc. DS21414B-page 11

TC3405

)

4.3 Package Dimensions

16-Pin PDIP (Narrow)

.045 (1.14)
.030 (0.76)

.200 (5.08)
.140 (3.56)

.150 (3.81)
.115 (2.92)

.770 (19.56)
.740 (18.80)

PIN 1

.270 (6.86)
.240 (6.10)

.040 (1.02)
.020 (0.51)

.014 (0.36)
.008 (0.20)

.310 (7.87)
.290 (7.37)

10°

MAX.

.110 (2.79)
.090 (2.29)

.070 (1.78)
.045 (1.14)

16-Pin QSOP (Narrow)

PIN 1

.157 (3.99)
.150 (3.81)

.010 (0.25)
.004 (0.10)

.025

(0.635)

TYP.

.196 (4.98)
.189 (4.80)

.012 (0.31)
.008 (0.21)

.022 (0.56)
.015 (0.38)

.244 (6.20)
.228 (5.80)

.069 (1.75)
.053 (1.35)

8°

MAX.

.400 (10.16)

.310 (7.87)

Dimensions: inches (mm

.010 (0.25)
.007 (0.19)

.050 (1.27)
.016 (0.41)

Dimensions: inches (mm)

DS21414B-page 12



2002 Microchip TechnologyInc.

TC3405

SALES AND SUPPORT

Data Sheets

Products supportedby a preliminaryData Sheet may have an errata sheet describing minor operational differences and recom­mendedworkarounds.To determine if an erratasheetexists for a particular device,please contact one of the following:

1. Y our local Microchip sales office

2. The MicrochipCorporate Literature Center U.S. FAX: [phone]

3. The Microchip Worldwide Site (www.microchip.com)
Pleasespecify which device, revision of silicon and Data Sheet (includeLiterature #) you are using.

New Customer Notification System

Register on our web site (www.microchip.com/cn) to receive the mostcurrenti nformationon our products.

© 2002 Microchip TechnologyInc. DS21414B-page13

TC3405

NOTES:

DS21414B-page 14 © 2002 Microchip TechnologyInc.

TC3405

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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EELOQ,microID,MPLAB,PIC,PICmicro,PICMASTER,

PICSTART, PRO MATE, SEEVAL and The Embedded Control
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In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
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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
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systemsisISO 9001certified.



2002 Microchip TechnologyInc. DS21414B-page 15

8-bit MCUs, KEELOQ®code hopping

WORLDWIDE SALES AND SERVICE

AMERICAS

Corporate Office

2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: [phone] Fax: [phone]
Technical Support: 480-792-7627
Web Address: http://www.microchip.com

Rocky Mountain

2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: [phone] Fax: [phone]

Atlanta

500 Sugar Mill Road, Suite 200B
Atlanta, GA 30350
Tel: [phone] Fax: [phone]

Boston

2 Lan Drive, Suite 120
Westford, MA 01886
Tel: [phone] Fax: [phone]

Chicago

333 Pierce Road, Suite 180
Itasca, IL 60143
Tel: [phone] Fax: [phone]

Dallas

4570 Westgrove Drive, Suite 160
Addison, TX 75001
Tel: [phone] Fax: [phone]

Detroit

Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334
Tel: [phone] Fax: [phone]

Kokomo

2767 S. Albright Road
Kokomo, Indiana 46902
Tel: [phone] Fax: [phone]

Los Angeles

18201 Von Karman, Suite 1090
Irvine, CA 92612
Tel: [phone] Fax: [phone]

New York

150 Motor Parkway, Suite 202
Hauppauge, NY 11788
Tel: [phone] Fax: [phone]

San Jose

Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Tel: [phone] Fax: [phone]

Toronto

6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, Canada
Tel: [phone] Fax: [phone]

ASIA/PACIFIC

Australia

Microchip Technology Australia Pty Ltd
Suite 22, 41 Rawson Street
Epping 2121, NSW
Australia
Tel: [phone] Fax: [phone]

China - Beijing

Microchip T echnology Consulting (Shanghai)
Co., Ltd., Beijing Liaison Office
Unit 915
Bei Hai Wan Tai Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: [phone] Fax: [phone]

China - Chengdu

Microchip T echnology Consulting (Shanghai)
Co., Ltd., Chengdu Liaison Office
Rm. 2401, 24th Floor,
Ming Xing Financial Tower
No. 88 TIDU Street
Chengdu 610016, China
Tel: [phone] Fax: [phone]

China - Fuzhou

Microchip T echnology Consulting (Shanghai)
Co., Ltd., Fuzhou Liaison Office
Unit 28F, World Trade Plaza
No. 71 Wusi Road
Fuzhou 350001, China
Tel: [phone] Fax: [phone]

China - Shanghai

Microchip T echnology Consulting (Shanghai)
Co., Ltd.
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Tel: [phone] Fax: [phone]

China - Shenzhen

Microchip T echnology Consulting (Shanghai)
Co., Ltd., Shenzhen Liaison Office
Rm. 1315, 13/F , Shenzhen Kerry Centre,
Renminnan Lu
Shenzhen 518001, China
Tel: [phone] Fax: [phone]

China - Hong Kong SAR

Microchip Technology Hongkong Ltd.
Unit 901-6, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: [phone] Fax: [phone]

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: [phone] Fax: [phone]

Japan

Microchip Technology Japan K.K.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: [phone] Fax: [phone]

Korea

Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea 135-882
Tel: [phone] Fax: [phone]

Singapore

Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: [phone] Fax: [phone]

Taiwan

Microchip Technology Taiwan
11F-3, No. 207
Tung HuaNorth Road
Taipei, 105, Taiwan
Tel: [phone] Fax: [phone]

EUROPE

Denmark

Microchip Technology Nordic ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: [phone] Fax: [phone]

France

Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
Batiment A - ler Etage
91300 Massy, France
Tel: [phone] Fax: [phone]

Germany

Microchip Technology GmbH
Gustav-Heinemann Ring 125
D-81739 Munich, Germany
Tel: [phone] Fax: [phone]

Italy

Microchip Technology SRL
Centro Direzionale Colleoni
Palazzo Taurus 1 V. Le Colleoni 1
20041 Agrate Brianza
Milan, Italy
Tel: [phone] Fax: [phone]

United Kingdom

Microchip Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Berkshire, EnglandRG41 5TU
Tel: [phone] Fax: [phone]

05/01/02

DS21414B-page 16

*DS21414B*



2002 Microchip Technology Inc.