FM25640C

更新时间： 2024-09-24 10:34:35

品牌	Logo	应用领域
铁电 - RAMTRON		存储
页数	文件大小	规格书
13页	282K
描述
64Kb Serial 5V F-RAM Memory

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中文翻译

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FM25640C 数据手册

Preliminary

FM25640C

64Kb Serial 5V F-RAM Memory

Features

Sophisticated Write Protection Scheme

64K bit Ferroelectric Nonvolatile RAM



Hardware Protection

Software Protection



Organized as 8,192 x 8 bits

High Endurance 1 Trillion (10¹²) Read/Writes

36 Year Data Retention at +75C

NoDelay™ Writes

Low Power Consumption



250 A Active Current (1 MHz)

4 A (typ.) Standby Current

Advanced high-reliability ferroelectric process

Very Fast Serial Peripheral Interface - SPI

Industry Standard Configuration



Up to 20 MHz maximum bus frequency

Direct hardware replacement for EEPROM

SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)



Industrial Temperature -40C to +85C

8-pin “Green”/RoHS SOIC (-G)

Description

Pin Configuration

The FM25640C is a 64-kilobit nonvolatile memory

employing an advanced ferroelectric process. A

ferroelectric random access memory or F-RAM is

nonvolatile but operates in other respects as a RAM.

It provides reliable data retention for 36 years while

eliminating the complexities, overhead, and system

level reliability problems caused by EEPROM and

other nonvolatile memories.

VDD

HOLD

SCK

VSS

The FM25640C performs write operations at bus

speed. No write delays are incurred. Data is written to

the memory array immediately after it has been

successfully transferred to the device. The next bus

cycle may commence immediately without the need

for data polling. The FM25640C is capable of

supporting up to 10¹²read/write cycles, or a million

times more write cycles than EEPROM.

Pin Names

/CS

/HOLD

/WP

SCK

Function

Chip Select

Hold

Write Protect

Serial Clock

Serial Data Input

Serial Data Output

These capabilities make the FM25640C ideal for

nonvolatile memory applications requiring frequent

or rapid writes. Examples range from data collection,

where the number of write cycles may be critical, to

demanding industrial controls where the long write

time of EEPROM can cause data loss.

VDD

VSS

Ground

Ordering Information

FM25640C-G

FM25640C-GTR

“Green”/RoHS 8-pin SOIC

“Green”/RoHS 8-pin SOIC,

Tape & Reel

The FM25640C provides substantial benefits to users

of serial EEPROM, in

hardware drop-in

replacement. The FM25640C uses the high-speed SPI

bus, which enhances the high-speed write capability

of F-RAM technology. The specifications are

guaranteed over an industrial temperature range of

-40°C to +85°C.

This is a product that has fixed target specifications but are subject

to change pending characterization results.

Ramtron International Corporation

1850 Ramtron Drive, Colorado Springs, CO 80921

(800) 545-F-RAM, (719) 481-7000

www.ramtron.com

Rev. 1.1

June 2011

Page 1 of 13

12 3 4 5 6 7...13

中文翻译

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与FM25640C相关器件

型号	品牌	获取价格	描述	数据表
FM25640C-G	RAMTRON	获取价格	64Kb Serial 5V F-RAM Memory
FM25640C-GTR	RAMTRON	获取价格	64Kb Serial 5V F-RAM Memory
FM25640-G	RAMTRON	获取价格	64Kb FRAM Serial Memory
FM25640-GA	RAMTRON	获取价格	64Kb FRAM Serial Memory
FM25640-P	ETC	获取价格	IC 64K SERIAL FRAM
FM25640-S	RAMTRON	获取价格	64Kb FRAM Serial Memory
FM25640-STR	RAMTRON	获取价格	暂无描述
FM25C020	FAIRCHILD	获取价格	2K-Bit SPI⑩ Interface Serial CMOS EEPROM
FM25C020U	FAIRCHILD	获取价格	2K-Bit SPI⑩ Interface Serial CMOS EEPROM
FM25C020UE	FAIRCHILD	获取价格	2K-Bit SPI⑩ Interface Serial CMOS EEPROM

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