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FM24C32UFTLZN

更新时间： 2024-11-13 23:52:19

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		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
13页	88K
描述
EEPROM

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中文翻译

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数据手册

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FM24C32UFTLZN 数据手册

September 2002

FM24C32U – 32K-Bit Standard 2-Wire Bus

Interface Serial EEPROM

General Description

Features

FM24C32U is a 32Kbit CMOS non-volatile serial EEPROM orga-

nized as 4K x 8 bit memory. This device confirms to Extended IIC

2-wire protocol that allows accessing of memory in excess of

16Kbit on an IIC bus. This serial communication protocol uses a

Clock signal (SCL) and a Data signal (SDA) to synchronously

clock data between a master (e.g. a microcontroller) and a slave

(EEPROM). FM24C32U is designed to minimize pin count and

simplify PC board layout requirements.

I Extended operating voltage: 2.7V to 5.5V

I Up to 400 KHz clock frequency at 2.7V to 5.5V

I Low power consumption

—0.2mA active current typical

—10µA standby current typical

—1µA standby current typical (L version)

—0.1µA standby current typical (LZ version)

I Schmitt trigger inputs

FM24C32U offers hardware write protection where by the upper

half (upper 16Kbit) of the memory array can be write protected by

connecting WP pin to V_CC. This section of memory then becomes

I 32 byte page write mode

I Self timed write cycle (6ms typical)

I Hardware Write Protection for upper half of the array

unalterable until the WP pin is switched to V_SS

I Low V_CCprogramming lockout for V_CC= 5V 10% (“H” option)

—Internal ERASE/WRITE logic is disabled if V_CCis below 3.8V

“LZ” and “L” versions of FM24C32U offer very low standby current

making them suitable for low power applications. This device is

offered in both SO and DIP packages.

I Endurance: 1 Million data changes

I Data Retention: Greater than 40 years

I Packages: 8-Pin DIP and 8-Pin SO

Fairchild EEPROMs are designed and tested for applications

requiringhighendurance, highreliabilityandlowpowerconsump-

tion.

I Temperature range

—Commercial: 0°C to +70°C

—Industrial (V): -40°C to +85°C

—Automotive (E): -40°C to +125°C

Block Diagram

WRITE

LOCKOUT

H.V. GENERATION

TIMING &CONTROL

START

STOP

SDA

LOGIC

CONTROL

LOGIC

SLAVE ADDRESS

COMPARATOR

PROM

ARRAY

XDEC

SCL

WORD

ADDRESS

COUNTER

R/W

YDEC

OUT

DATA REGISTER

FM24C32U Rev. A.1

www.fairchildsemi.com

12 3 4 5 6 7...13

中文翻译

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