Datasheet > 存储 > EEPROM> FM25C040UM8X

FM25C040UM8X

更新时间： 2024-02-03 17:03:44

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		内存集成电路光电二极管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时钟
页数	文件大小	规格书
11页	107K
描述
EEPROM, 512X8, Serial, CMOS, PDSO8, SO-8

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技术参数
数据手册

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FM25C040UM8X 技术参数

生命周期：	Contact Manufacturer	包装说明：	SOP,
Reach Compliance Code：	unknown	HTS代码：	8542.32.00.51
风险等级：	5.73	Is Samacsys：	N
最大时钟频率 (fCLK)：	2.1 MHz	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e0	长度：	4.9 mm
内存密度：	4096 bit	内存集成电路类型：	EEPROM
内存宽度：	8	功能数量：	1
端子数量：	8	字数：	512 words
字数代码：	512	工作模式：	SYNCHRONOUS
最高工作温度：	70 °C	最低工作温度：
组织：	512X8	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	并行/串行：	SERIAL
座面最大高度：	1.75 mm	串行总线类型：	SPI
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	TIN LEAD	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	3.9 mm	最长写入周期时间 (tWC)：	10 ms
Base Number Matches：	1

FM25C040UM8X 数据手册

February 2002

FM25C040U

4K-Bit SPI™ Interface

Serial CMOS EEPROM

General Description

Functions

The FM25C040U is a 4K (4,096) bit serial interface CMOS

EEPROM (Electrically Erasable Programmable Read-Only

Memory). This device fully conforms to the SPI 4-wire protocol

whichusesChipSelect(/CS), Clock(SCK), Data-in(SI)andData-

out (SO) pins to synchronously control data transfer between the

SPI microcontroller and the EEPROM. In addition, the serial

interface allows a minimal pin count, packaging designed to

simplify PC board layout requirements and offers the designer a

variety of low voltage and low power options.

I SPI MODE 0 interface

I 4,096 bits organized as 512 x 8

I Extended 2.7V to 5.5V operating voltage

I 2.1 MHz operation @ 4.5V - 5.5V

I Self-timed programming cycle

I "Programming complete" indicated by STATUS REGISTER

polling

I /WP pin and BLOCK WRITE protection

This SPI EEPROM family is designed to work with the 68HC11 or

any other SPI-compatible, high-speed microcontroller and offers

both hardware (/WP pin) and software ("block write") data protec-

tion. For example, entering a 2-bit code into the STATUS REGIS-

TER prevents programming in a selected block of memory and all

Features

I Sequential read of entire array

I 4 byte "Page write" mode to minimize total write time per

byte

programming can be inhibited by connecting the /WP pin to V_SS

;

allowing the user to protect the entire array or a selected section.

In addition, SPI devices feature a /HOLD pin, which allows a

temporary interruption of the datastream into the EEPROM.

I /WP pin and BLOCK WRITE protection to prevent inadvert-

ent programming as well as programming ENABLE and

DISABLE opcodes.

I /HOLD pin to suspend data transfer

Fairchild EEPROMs are designed and tested for applications

requiring high endurance, high reliability, and low power con-

sumption for a continuously reliable non-volatile solution for all

markets.

I Typical 1µA standby current (I_SB) for "L" devices and 0.1µA

standby current for "LZ" devices.

I Endurance: Up to 1,000,000 data changes

I Data retention greater than 40 years

Block Diagram

/CS

/HOLD

SCK

V_CC

V_SS

Instruction

Decoder

Control Logic

and Clock

/WP

Instruction

Generators

Program

Enable

Address

Counter/

High Voltage

Generator

and

Program

Timer

V_PP

Decoder

EEPROM Array

Read/Write Amps

Data In/Out Register

8 Bits

Data Out

Buffer

Non-Volatile

Status Register

SPI™ is a trademark of Motorola Corporation

FM25C040U Rev. B

www.fairchildsemi.com

12 3 4 5 6 7...11

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与FM25C040UM8X相关器件

型号	品牌	获取价格	描述	数据表
FM25C040UMT8	ETC	获取价格	SPI Serial EEPROM
FM25C040UN	FAIRCHILD	获取价格	SERIAL EEPROM\|512X8\|CMOS\|DIP\|8PIN\|PLASTIC
FM25C040UV	FAIRCHILD	获取价格	4K-Bit SPI⑩ Interface Serial CMOS EEPROM
FM25C040UVM8	ETC	获取价格	SPI Serial EEPROM
FM25C040UVM8X	FAIRCHILD	获取价格	EEPROM, 512X8, Serial, CMOS, PDSO8, SO-8
FM25C040UVMT8	FAIRCHILD	获取价格	SERIAL EEPROM\|512X8\|CMOS\|TSSOP\|8PIN\|PLASTIC
FM25C040UVN	FAIRCHILD	获取价格	EEPROM, 512X8, Serial, CMOS, PDIP8, PLASTIC, DIP-8
FM25C041	FAIRCHILD	获取价格	4K-Bit SPI⑩ Interface Serial CMOS EEPROM
FM25C041U	FAIRCHILD	获取价格	4K-Bit SPI⑩ Interface Serial CMOS EEPROM
FM25C041UE	FAIRCHILD	获取价格	4K-Bit SPI⑩ Interface Serial CMOS EEPROM

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