24LC024T/SN [ETC]

SERIAL EEPROM|256X8|CMOS|SOP|8PIN|PLASTIC ; 串行EEPROM | 256X8 | CMOS |专科| 8PIN |塑料\n


型号：	24LC024T/SN
厂家：	ETC
描述：	SERIAL EEPROM\|256X8\|CMOS\|SOP\|8PIN\|PLASTIC 串行EEPROM \| 256X8 \| CMOS \|专科\| 8PIN \|塑料\n 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件：	总13页 (文件大小：187K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

24LC024/24LC025

2K 2.2V I²C^™Serial EEPROM

PACKAGE TYPES

FEATURES

PDIP/SOIC

• Single supply with operation from 2.2 to 5.5V

• Low power CMOS technology

- 1 mA active current typical

Vcc

- 10 µA standby current typical at 5.5V

• Organized as a single block of 128 bytes (256 x 8)

• Hardware write protection for entire array

(24LC024)

WP*

SCL

• 2-wire serial interface bus, I²C compatible

• 100kHz and 400kHz compatibility

• Page-write buffer for up to 16 bytes

• Self-timed write cycle (including auto-erase)

• 3.5 ms typical write cycle time for page write

• Address lines allow up to eight devices on bus

• 1,000,000 erase/write cycles guaranteed

• ESD protection > 4,000V

Vss

SDA

TSSOP

• Data retention > 200 years

• 8-pin PDIP, SOIC or TSSOP packages

• Available for extended temperature ranges

VCC

WP*

- Commercial (C):

- Industrial (I):

0°C to +70°C

-40°C to +85°C

VSS

SCL

SDA

DESCRIPTION

*WP pin available only on 24LC024. This

pin has no internal connection on 24LC025

The Microchip Technology Inc. 24LC024/24LC025 is a

2K bit Serial Electrically Erasable PROM with a voltage

range of 2.2V to 5.5V. The device is organized as a

single block of 256 x 8-bit memory with a 2-wire serial

interface. Low current design permits operation with

typical standby and active currents of only 10 µA and 1

mA respectively. The device has a page-write capability

for up to 16 bytes of data. Functional address lines

allow the connection of up to eight 24LC024/24LC025

devices on the same bus for up to 16K bits of contigu-

ous EEPROM memory. The device is available in the

standard 8-pin PDIP, 8-pin SOIC (150 mil), and TSSOP

packages.

BLOCK DIAGRAM

WP*

A0 A1 A2

HV Generator

I/O

Control

Logic

Memory

Control

Logic

EEPROM

Array

XDEC

SDA

SCL

VCC

VSS

Write Protect

Circuitry

YDEC

SENSE AMP

R/W CONTROL

*WP pin available only on 24LC024. This

pin has no internal connection on 24LC025

1999 Microchip Technology Inc.

DS21210D-page 1

24LC024/24LC025

TABLE 1-1:

Name

PIN FUNCTION TABLE

Function

1.0

ELECTRICAL

CHARACTERISTICS

1.1

Maximum Ratings*

VSS

SDA

SCL

VCC

Ground

Serial Data

VCC........................................................................7.0V

All inputs and outputs w.r.t. VSS .....-0.6V to VCC +1.0V

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

Ambient temp. with power applied......-65°C to +125°C

Soldering temperature of leads (10 seconds) ..+300°C

ESD protection on all pins ..................................... ≥ 4 kV

Serial Clock

+2.2V to 5.5V Power Supply

A0, A1, A2 Chip Selects

Hardware Write Protect (24LC024)

No internal connection

*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 peri-

ods may affect device reliability.

TABLE 1-2:

All parameters apply across the speci-

fied operating ranges unless otherwise Commercial (C):

DC CHARACTERISTICS

VCC = +2.2V to +5.5V

Tamb = 0°C to +70°C

Tamb = -40°C to +85°C

noted.

Industrial (I):

Parameter

Symbol

Min.

Max.

Units

Conditions

SCL and SDA pins:

High level input voltage

VIH

VIL

0.7 VCC

0.05 VCC

Low level input voltage

0.3 VCC

—

Hysteresis of Schmitt trigger inputs

Low level output voltage

VHYS

VOL

(Note)

0.40

IOL = 3.0 mA, VCC = 4.5V

IOL = 2.1 mA, VCC = 2.5V

Input leakage current

ILI

ILO

-10

—

µA

VIN = 0.1V to 5.5V, WP = Vss

VOUT = 0.1V to 5.5V

Output leakage current

Pin capacitance (all inputs/outputs)

CIN, COUT

VCC = 5.0V (Note)

Tamb = 25°C, f = 1 MHz

ICC Read

ICC Write

ICCS

—

µA

VCC = 5.5V, SCL = 400 kHz

VCC = 5.5V

Operating current

Standby current

VCC = 5.5V, SDA = SCL = VCC

WP = VSS, A0, A1, A2 = VSS

Note: This parameter is periodically sampled and not 100% tested.

DS21210D-page 2

1999 Microchip Technology Inc.

24LC024/24LC025

TABLE 1-3:

AC CHARACTERISTICS

All parameters apply across the specified operat- Vcc = 2.2V to 5.5V

ing ranges unless otherwise noted.

Commercial (C):

Industrial (I):

Tamb = 0°C to +70°C

Tamb = -40°C to +85°C

Vcc = 2.2V - 5.5V Vcc = 4.5V - 5.5V

STD MODE FAST MODE

Parameter

Symbol

Units

Remarks

Min.

Max.

Min.

Max.

Clock frequency

FCLK

THIGH

TLOW

—

4000

4700

—

100

—

600

1300

—

400

—

kHz

Clock high time

Clock low time

—

SDA and SCL rise time

SDA and SCL fall time

START condition hold time

1000

300

—

300

—

(Note 1)

—

THD:STA

4000

600

After this period the first

clock pulse is generated

START condition setup time TSU:STA

4700

—

600

—

Only relevant for repeated

START condition

Data input hold time

Data input setup time

STOP condition setup time

Output valid from clock

Bus free time

THD:DAT

TSU:DAT

TSU:STO

TAA

—

(Note 2)

250

4000

—

100

600

—

3500

—

900

—

(Note 2)

TBUF

4700

1300

Time the bus must be free

before a new transmission

can start

Output fall time from VIH

minimum to VIL maximum

TOF

TSP

TWC

—

250

20 +0.1

C_B

250

(Note 1), C_B≤ 100 pF

Input filter spike suppression

(SDA and SCL pins)

—

(Note 3)

Write cycle time

Endurance

—

ms Byte or Page mode

cycles 25°C, VCC = 5.0V, Block

Mode (Note 4)

Note 1: Not 100% tested. C_B= total capacitance of one bus line in pF.

2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region

(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions.

3: The combined TSP and VHYS specifications are due to Schmitt trigger inputs which provide improved noise

spike suppression. This eliminates the need for a TI specification for standard operation.

4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific

application, please consult the Total Endurance Model which can be obtained on our website.

FIGURE 1-1: BUS TIMING DATA

THIGH

SCL

TSU:STA

TLOW

THD:DAT

TSU:DAT

TSU:STO

SDA

THD:STA

TSP

TBUF

TAA

SDA

OUT

1999 Microchip Technology Inc.

DS21210D-page 3

24LC024/24LC025

2.0

PIN DESCRIPTIONS

3.0

FUNCTIONAL DESCRIPTION

The 24LC024/24LC025 supports a bi-directional 2-wire

bus and data transmission protocol. A device that

sends data onto the bus is defined as transmitter, and

a device receiving data as receiver. The bus has to be

controlled by a master device which generates the

serial clock (SCL), controls the bus access, and gener-

ates the START and STOP conditions, while the

24LC024/24LC025 works as slave. Both master and

slave can operate as transmitter or receiver but the

master device determines which mode is activated.

2.1

SDA Serial Data

This is a bi-directional pin used to transfer addresses

and data into and data out of the device. It is an open

drain terminal, therefore the SDA bus requires a pull-up

resistor to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for

400 kHz).

For normal data transfer SDA is allowed to change only

during SCL low. Changes during SCL high are

reserved for indicating the START and STOP condi-

tions.

2.2

SCL Serial Clock

This input is used to synchronize the data transfer from

and to the device.

2.3

A0, A1, A2

The levels on these inputs are compared with the cor-

responding bits in the slave address. The chip is

selected if the compare is true.

Up to eight 24LC024/24LC025 devices may be con-

nected to the same bus by using different chip select bit

combinations. These inputs must be connected to

either VCC or VSS.

2.4

WP (24LC024 only)

This is the hardware write protect pin. It must be tied to

VCC or VSS. If tied to Vcc, the hardware write protection

is enabled. If the WP pin is tied to Vss the hardware

write protection is disabled. Note that the WP pin is

available only on the 24LC024. This pin is not internally

connected on the 24LC025.

2.5

Noise Protection

The 24LC024/24LC025 employs a VCC threshold

detector circuit which disables the internal erase/write

logic if the VCC is below 1.5 volts at nominal conditions.

The SCL and SDA inputs have Schmitt trigger and filter

circuits which suppress noise spikes to assure proper

device operation even on a noisy bus.

DS21210D-page 4

1999 Microchip Technology Inc.

24LC024/24LC025

The data on the line must be changed during the LOW

period of the clock signal. There is one bit of data per

clock pulse.

4.0

BUS CHARACTERISTICS

The following bus protocol has been defined:

• Data transfer may be initiated only when the bus

is not busy.

• During data transfer, the data line must remain

stable whenever the clock line is HIGH. Changes

in the data line while the clock line is HIGH will be

interpreted as a START or STOP condition.

Each data transfer is initiated with a START condition

and terminated with a STOP condition. The number of

the data bytes transferred between the START and

STOP conditions is determined by the master device

and is theoretically unlimited, although only the last six-

teen will be stored when doing a write operation. When

an overwrite does occur it will replace data in a first in

first out fashion.

Accordingly, the following bus conditions have been

defined (Figure 4-1).

4.1

Both data and clock lines remain HIGH.

4.2 Start Data Transfer (B)

Bus not Busy (A)

4.5

Acknowledge

Each receiving device, when addressed, is required to

generate an acknowledge after the reception of each

byte. The master device must generate an extra clock

pulse which is associated with this acknowledge bit.

A HIGH to LOW transition of the SDA line while the

clock (SCL) is HIGH determines a START condition. All

commands must be preceded by a START condition.

Note: The 24LC024/24LC025 does not generate

any acknowledge bits if an internal pro-

gramming cycle is in progress.

4.3

Stop Data Transfer (C)

The device that acknowledges has to pull down the

SDA line during the acknowledge clock pulse in such a

way that the SDA line is stable LOW during the HIGH

period of the acknowledge related clock pulse. Of

course, setup and hold times must be taken into

account. A master must signal an end of data to the

slave by not generating an acknowledge bit on the last

byte that has been clocked out of the slave. In this case,

the slave must leave the data line HIGH to enable the

master to generate the STOP condition (Figure 4-2).

A LOW to HIGH transition of the SDA line while the

clock (SCL) is HIGH determines a STOP condition. All

operations must be ended with a STOP condition.

4.4

Data Valid (D)

The state of the data line represents valid data when,

after a START condition, the data line is stable for the

duration of the HIGH period of the clock signal.

FIGURE 4-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS CHARACTERISTICS

(A)

(B)

(C)

(D)

(C)

(A)

SCL

SDA

START

CONDITION

STOP

CONDITION

ADDRESS OR

ACKNOWLEDGE

VALID

DATA

ALLOWED

TO CHANGE

FIGURE 4-2: ACKNOWLEDGE TIMING

Acknowledge

Bit

SCL

SDA

Data from transmitter

Receiver must release the SDA line at this point

so the Transmitter can continue sending data.

Transmitter must release the SDA line at this point

allowing the Receiver to pull the SDA line low to

acknowledge the previous eight bits of data.

1999 Microchip Technology Inc.

DS21210D-page 5

24LC024/24LC025

FIGURE 5-1: CONTROL BYTE FORMAT

5.0

DEVICE ADDRESSING

Read/Write Bit

A control byte is the first byte received following the

start condition from the master device (Figure 5-1). The

control byte consists of a four bit control code; for the

24LC024/24LC025 this is set as 1010 binary for read

and write operations. The next three bits of the control

byte are the chip select bits (A2, A1, A0). The chip

select bits allow the use of up to eight 24LC024/

24LC025 devices on the same bus and are used to

select which device is accessed. The chip select bits in

the control byte must correspond to the logic levels on

the corresponding A2, A1, and A0 pins for the device to

respond. These bits are in effect the three most signifi-

cant bits of the word address.

Chip Select

Control Code

Bits

A2 A1 A0 R/W ACK

Slave Address

Acknowledge Bit

Start Bit

5.1

Contiguous Addressing Across

Multiple Devices

The last bit of the control byte defines the operation to

be performed. When set to a one a read operation is

selected, and when set to a zero a write operation is

selected. Following the start condition, the 24LC024/

24LC025 monitors the SDA bus checking the control

byte being transmitted. Upon receiving a 1010 code

and appropriate chip select bits, the slave device out-

puts an acknowledge signal on the SDA line. Depend-

ing on the state of the R/W bit, the 24LC024/24LC025

will select a read or write operation.

The chip select bits A2, A1, A0 can be used to expand

the contiguous address space for up to 16K bits by add-

ing up to eight 24LC024/24LC025 devices on the same

bus. In this case, software can use A0 of the control

byte as address bit A8, A1 as address bit A9, and A2

as address bit A10. It is not possible to sequentially

read across device boundaries.

DS21210D-page 6

1999 Microchip Technology Inc.

24LC024/24LC025

address remains constant. If the master should transmit

more than 16 bytes prior to generating the stop condi-

tion, the address counter will roll over and the previously

received data will be overwritten. As with the byte write

operation, once the stop condition is received an inter-

nal write cycle will begin (Figure 6-2). If an attempt is

made to write to the protected portion of the array when

the hardware write protection has been enabled, the

device will acknowledge the command but no data will

be written. The write cycle time must be observed even

if the write protection is enabled.

6.0

WRITE OPERATIONS

6.1

Byte Write

Following the start signal from the master, the device

code(4 bits), the chip select bits (3 bits), and the R/W

bit which is a logic low is placed onto the bus by the

master transmitter. The device will acknowledge this

control byte during the ninth clock pulse. The next byte

transmitted by the master is the word address and will

be written into the address pointer of the 24LC024/

24LC025. After receiving another acknowledge signal

from the 24LC024/24LC025 the master device will

transmit the data word to be written into the addressed

memory location. The 24LC024/24LC025 acknowl-

edges again and the master generates a stop condi-

tion. This initiates the internal write cycle, and during

this time the 24LC024/24LC025 will not generate

acknowledge signals (Figure 6-1). If an attempt is

made to write to the protected portion of the array when

the hardware write protection (24LC024 only) has been

enabled, the device will acknowledge the command but

no data will be written. The write cycle time must be

observed even if the write protection is enabled.

Note: Page write operations are limited to writing

bytes within a single physical page, regard-

less of the number of bytes actually being

written. Physical page boundaries start at

addresses that are integer multiples of the

page buffer size (or ‘page size’) and end at

addresses that are integer multiples of

[page size - 1]. If a page write command

attempts to write across a physical page

boundary, the result is that the data wraps

around to the beginning of the current page

(overwriting data previously stored there),

instead of being written to the next page as

might be expected. It is therefore neces-

sary for the application software to prevent

page write operations that would attempt to

cross a page boundary.

6.2

Page Write

The write control byte, word address and the first data

byte are transmitted to the 24LC024/24LC025 in the

same way as in a byte write. But instead of generating a

stop condition, the master transmits up to 15 additional

data bytes to the 24LC024/24LC025 which are tempo-

rarily stored in the on-chip page buffer and will be writ-

ten into the memory after the master has transmitted a

stop condition. After the receipt of each word, the four

lower order address pointer bits are internally incre-

mented by one. The higher order four bits of the word

6.3

WRITE PROTECTION

The WP pin (available on 24LC024 only) must be tied

to VCC or VSS. If tied to VCC, the entire array will be

write protected. If the WP pin is tied to VSS, then write

operations to all address locations are allowed.

FIGURE 6-1: BYTE WRITE

BUS ACTIVITY

MASTER

CONTROL

BYTE

WORD

ADDRESS

DATA

SDA LINE

BUS ACTIVITY

FIGURE 6-2: PAGE WRITE

BUS ACTIVITY

MASTER

CONTROL

BYTE

WORD

ADDRESS (n)

DATA n

DATA n +1

DATA n + 15

SDA LINE

BUS ACTIVITY

1999 Microchip Technology Inc.

DS21210D-page 7

24LC024/24LC025

FIGURE 7-1: ACKNOWLEDGE POLLING

FLOW

7.0

ACKNOWLEDGE POLLING

Since the device will not acknowledge during a write

cycle, this can be used to determine when the cycle is

complete (this feature can be used to maximize bus

throughput). Once the stop condition for a write com-

mand has been issued from the master, the device ini-

tiates the internally timed write cycle. ACK polling can

be initiated immediately. This involves the master send-

ing a start condition followed by the control byte for a

write command (R/W = 0). If the device is still busy with

the write cycle, then no ACK will be returned. If no ACK

is returned, then the start bit and control byte must be

re-sent. If the cycle is complete, then the device will

return the ACK and the master can then proceed with

the next read or write command. See Figure 7-1 for

flow diagram.

Send

Write Command

Send Stop

Condition to

Initiate Write Cycle

Send Start

Send Control Byte

with R/W = 0

Did Device

Acknowledge

(ACK = 0)?

YES

Operation

DS21210D-page 8

1999 Microchip Technology Inc.

24LC024/24LC025

condition following the acknowledge. This terminates

the write operation, but not before the internal address

pointer is set. Then the master issues the control byte

again but with the R/W bit set to a one. The 24LC024/

24LC025 will then issue an acknowledge and transmits

the eight bit data word. The master will not acknowl-

edge the transfer but does generate a stop condition

and the 24LC024/24LC025 discontinues transmission

(Figure 8-2). After this command, the internal address

counter will point to the address location following the

one that was just read.

8.0

READ OPERATIONS

Read operations are initiated in the same way as write

operations with the exception that the R/W bit of the

slave address is set to one. There are three basic types

of read operations: current address read, random read,

and sequential read.

8.1

Current Address Read

The 24LC024/24LC025 contains an address counter

that maintains the address of the last word accessed,

internally incremented by one. Therefore, if the previ-

ous read access was to address n, the next current

address read operation would access data from

address n + 1. Upon receipt of the slave address with

the R/W bit set to one, the 24LC024/24LC025 issues

an acknowledge and transmits the eight bit data word.

The master will not acknowledge the transfer but does

generate a stop condition and the 24LC024/24LC025

discontinues transmission (Figure 8-1).

8.3

Sequential Read

Sequential reads are initiated in the same way as a ran-

dom read except that after the 24LC024/24LC025

transmits the first data byte, the master issues an

acknowledge as opposed to a stop condition in a ran-

dom read. This directs the 24LC024/24LC025 to trans-

mit the next sequentially addressed 8-bit word

(Figure 8-3).

8.2

Random Read

To provide sequential reads the 24LC024/24LC025

contains an internal address pointer which is incre-

mented by one at the completion of each operation.

This address pointer allows the entire memory con-

tents to be serially read during one operation. The inter-

nal address pointer will automatically roll over from

address 0FFh to address 000h.

Random read operations allow the master to access

any memory location in a random manner. To perform

this type of read operation, first the word address must

be set. This is done by sending the word address to the

24LC024/24LC025 as part of a write operation. After

the word address is sent, the master generates a start

FIGURE 8-1: CURRENT ADDRESS READ

BUS ACTIVITY

MASTER

CONTROL

BYTE

DATA

SDA LINE

BUS ACTIVITY

FIGURE 8-2: RANDOM READ

BUS ACTIVITY

MASTER

CONTROL

BYTE

WORD

ADDRESS (n)

CONTROL

BYTE

DATA (n)

SDA LINE

BUS ACTIVITY

FIGURE 8-3: SEQUENTIAL READ

BUS ACTIVITY

CONTROL

DATA n

DATA n + 1

DATA n + 2

DATA n + X

MASTER

SDA LINE

BYTE

BUS ACTIVITY

1999 Microchip Technology Inc.

DS21210D-page 9

24LC024/24LC025

NOTES:

DS21210D-page 10

1999 Microchip Technology Inc.

24LC024/24LC025

24LC024/24LC025 PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office..

24LC024/24LC025

—

P = Plastic DIP (300 mil Body), 8-lead

SN = Plastic SOIC (150 mil Body)

ST = TSSOP, 8-lead

Package:

Blank = 0°C to +70°C

I = –40°C to +85°C

Temperature

Range:

24LC024

24LC024T

2.K I²C Serial EEPROM with WP

Device:

2 K I²C Serial EEPROM with WP pin

(Tape and Reel)

24LC025

24LC025T

2K I²C Serial EEPROM

2K I²C Serial EEPROM (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 recom-

mended workarounds. To 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: (602) 786-7277

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

1999 Microchip Technology Inc.

DS21210D-page 11

Note the following details of the code protection feature on PICmicro MCUs.

•

The PICmicro family meets the specifications contained in the Microchip Data Sheet.

Microchip believes that its family of PICmicro microcontrollers is one of the most secure products 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 knowl-

edge, require using the PICmicro microcontroller in a manner outside the operating specifications contained in the data sheet.

The person doing so may be 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 product.

If you have any further questions about this matter, please contact the local sales office nearest to you.

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 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,

KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER,

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.

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. The

Company’s quality system processes and

procedures are QS-9000 compliant for its

PICmicro^®8-bit MCUs, KEELOQ^®code hopping

devices, Serial EEPROMs and microperipheral

products. In addition, Microchip’s quality

system for the design and manufacture of

development systems is ISO 9001 certified.

 2002 Microchip Technology Inc.

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Tel: 480-792-7200 Fax: 480-792-7277

Technical Support: 480-792-7627

Web Address: http://www.microchip.com

Australia

Tel: 61-2-9868-6733 Fax: 61-2-9868-6755

Korea

Rocky Mountain

China - Beijing

Microchip Technology Korea

168-1, Youngbo Bldg. 3 Floor

Samsung-Dong, Kangnam-Ku

Seoul, Korea 135-882

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7966 Fax: 480-792-7456

Microchip Technology Consulting (Shanghai)

Co., Ltd., Beijing Liaison Office

Unit 915

Bei Hai Wan Tai Bldg.

Atlanta

500 Sugar Mill Road, Suite 200B

Atlanta, GA 30350

Tel: 82-2-554-7200 Fax: 82-2-558-5934

No. 6 Chaoyangmen Beidajie

Beijing, 100027, No. China

Tel: 86-10-85282100 Fax: 86-10-85282104

Singapore

Microchip Technology Singapore Pte Ltd.

200 Middle Road

#07-02 Prime Centre

Singapore, 188980

Tel: 65-334-8870 Fax: 65-334-8850

Taiwan

Microchip Technology Taiwan

11F-3, No. 207

Tung Hua North Road

Taipei, 105, Taiwan

Tel: 770-640-0034 Fax: 770-640-0307

China - Chengdu

Boston

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

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

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

Detroit

Tri-Atria Office Building

32255 Northwestern Highway, Suite 190

Farmington Hills, MI 48334

Tel: 248-538-2250 Fax: 248-538-2260

Kokomo

France

2767 S. Albright Road

Kokomo, Indiana 46902

Tel: 765-864-8360 Fax: 765-864-8387

Los Angeles

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

18201 Von Karman, Suite 1090

Irvine, CA 92612

Tel: 949-263-1888 Fax: 949-263-1338

Germany

New York

150 Motor Parkway, Suite 202

Hauppauge, NY 11788

Microchip Technology GmbH

Gustav-Heinemann Ring 125

D-81739 Munich, Germany

Tel: 49-89-627-144 0 Fax: 49-89-627-144-44

Tel: 631-273-5305 Fax: 631-273-5335

San Jose

Hong Kong

Italy

Microchip Technology Inc.

2107 North First Street, Suite 590

San Jose, CA 95131

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

Microchip Technology SRL

Centro Direzionale Colleoni

Palazzo Taurus 1 V. Le Colleoni 1

20041 Agrate Brianza

Tel: 408-436-7950 Fax: 408-436-7955

Toronto

Milan, Italy

Tel: 39-039-65791-1 Fax: 39-039-6899883

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

United Kingdom

Arizona Microchip Technology Ltd.

505 Eskdale Road

Winnersh Triangle

Wokingham

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

Berkshire, England RG41 5TU

Tel: 44 118 921 5869 Fax: 44-118 921-5820

01/18/02

 2002 Microchip Technology Inc.

24LC024T/SN [ETC]

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