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FM25C041ULN

产品描述EEPROM, 512X8, Serial, CMOS, PDIP8, DIP-8
产品类别存储    存储   
文件大小145KB,共13页
制造商Fairchild
官网地址http://www.fairchildsemi.com/
下载文档 详细参数 全文预览

FM25C041ULN概述

EEPROM, 512X8, Serial, CMOS, PDIP8, DIP-8

FM25C041ULN规格参数

参数名称属性值
是否无铅含铅
是否Rohs认证不符合
零件包装代码DIP
包装说明DIP, DIP8,.3
针数8
Reach Compliance Codeunknown
ECCN代码EAR99
Is SamacsysN
最大时钟频率 (fCLK)1 MHz
数据保留时间-最小值40
耐久性1000000 Write/Erase Cycles
JESD-30 代码R-PDIP-T8
JESD-609代码e0
长度9.817 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DIP
封装等效代码DIP8,.3
封装形状RECTANGULAR
封装形式IN-LINE
并行/串行SERIAL
峰值回流温度(摄氏度)NOT SPECIFIED
电源2.7/4.5 V
认证状态Not Qualified
座面最大高度5.08 mm
串行总线类型SPI
最大待机电流0.00001 A
最大压摆率0.003 mA
最大供电电压 (Vsup)4.5 V
最小供电电压 (Vsup)2.7 V
标称供电电压 (Vsup)3.3 V
表面贴装NO
技术CMOS
温度等级COMMERCIAL
端子面层Tin/Lead (Sn/Pb)
端子形式THROUGH-HOLE
端子节距2.54 mm
端子位置DUAL
处于峰值回流温度下的最长时间NOT SPECIFIED
宽度7.62 mm
最长写入周期时间 (tWC)15 ms
写保护HARDWARE/SOFTWARE
Base Number Matches1

文档预览

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FM25C041U 4K-Bit SPI Interface Serial CMOS EEPROM
February 2002
FM25C041U
4K-Bit SPI™ Interface
Serial CMOS EEPROM
General Description
The FM25C041U 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
which uses Chip Select (/CS), Clock (SCK), Data-in (SI) and Data-
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.
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
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.
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.
Functions
I
SPI MODE 1 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
Features
I
Sequential read of entire array
I
4 byte "Page write" mode to minimize total write time per
byte
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
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
SI
Instruction
Register
Instruction
Decoder
Control Logic
and Clock
Generators
V
CC
V
SS
/WP
Address
Counter/
Register
Program
Enable
V
PP
High Voltage
Generator
and
Program
Timer
Decoder
EEPROM Array
Read/Write Amps
Data In/Out Register
8 Bits
Data Out
Buffer
SO
Non-Volatile
Status Register
SPI™ is a trademark of Motorola Corporation
© 2002 Fairchild Semiconductor Corporation
FM25C041U Rev. B
1
www.fairchildsemi.com
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