Datasheet > NM24W02LN

NM24W02LN

更新时间： 2024-11-11 23:53:59

品牌	Logo	应用领域
其他 - ETC		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
页数	文件大小	规格书
14页	151K
描述
I2C Serial EEPROM

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中文翻译

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数据手册

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NM24W02LN 数据手册

PRELIMINARY

March 1999

NM24Wxx

2K/4K/8K/16K-Bit Standard 2-Wire Bus Interface

Serial EEPROM with Full Array Write Protect

General Description

Features

The NM24Wxx devices are 2048/4096/8192/16,384 bits, respec-

tively, of CMOS non-volatile electrically erasable memory. These

devices conform to all specifications in the IIC 2-wire protocol and

are designed to minimize device pin count, and simplify PC board

layout requirements.

■ Hardware Write Protect for entire memory

■ Low Power CMOS

200µA active current typical

10µA standby current typical

1µA standby typical (L)

0.1µA standby typical (LZ)

The entire ememory can be disabled (Write Protected) by con-

nectingtheWPpintoV_CC.Thememorythenbecomesunalterable

■ IIC Compatible interface

unless WP is switched to V_SS

— Provides bidirectional data transfer protocol

■ Sixteen byte page write mode

— Minimizes total write time per byte

This communications protocol uses CLOCK (SCL) and DATA

I/O (SDA) lines to synchronously clock data between the master

(forexampleamicroprocessor)andtheslaveEEPROMdevice(s).

The Standard IIC protocol allows for a maximum of 16K of

EEPROM memory which is supported by Fairchild's family in 2K,

4K, 8K, and 16K devices, allowing the user to configure the

memory as the application requires with any combination of

EEPROMs.

■ Self timed write cycle

— Typical write cycle time of 6ms

■ Endurance: 1,000,000 data changes

■ Data retention greater than 40 years

■ Packages available: 8-pin DIP, 8-pin SO, and 8-pin TSSOP

■ Available in three temperature ranges

- Commercial: 0° to +70°C

Fairchild EEPROMs are designed and tested for applications

requiringhighendurance, highreliabilityandlowpowerconsump-

tion.

- Extended (E): -40° to +85C

- Automotive (V): -40° to +125°C

Block Diagram

H.V. GENERATION

TIMING &CONTROL

START CYCLE

START

STOP

SDA

LOGIC

CONTROL

LOGIC

SLAVE ADDRESS

COMPARATOR

16/

32/

64/

PROM

ARRAY

XDEC

SCL

128/

LOAD

INC

WORD

ADDRESS

COUNTER

0/1/2/3

R/W

YDEC

Device Address Bits

OUT

DATA REGISTER

DS500074-1

www.fairchildsemi.com

NM24Wxx Rev. C.2

12 3 4 5 6 7...14

中文翻译

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