FM25040C

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	264K
描述
4Kb Serial 5V F-RAM Memory

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中文翻译

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FM25040C 数据手册

Preliminary

FM25040C

4Kb Serial 5V F-RAM Memory

Features

Sophisticated Write Protection Scheme

4K bit Ferroelectric Nonvolatile RAM



Hardware Protection

Software Protection



Organized as 512 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 FM25040C is a 4-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 FM25040C 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 FM25040C is capable of

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

times more write cycles than EEPROM.

Pin Names

/CS

/WP

/HOLD

SCK

VDD

VSS

Function

Chip Select

Write Protect

Hold

Serial Clock

Serial Data Input

Serial Data Output

Supply Voltage 5V

Ground

These capabilities make the FM25040C 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.

Ordering Information

FM25040C-G

FM25040C-GTR

“Green” 8-pin SOIC

“Green” 8-pin SOIC,

Tape & Reel

The FM25040C provides substantial benefits to users

of serial EEPROM, in

hardware drop-in

replacement. The FM25040C 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

July 2011

Page 1 of 13

12 3 4 5 6 7...13

中文翻译

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与FM25040C相关器件

型号	品牌	获取价格	描述	数据表
FM25040-C	ETC	获取价格	NVRAM (Ferroelectric Based)
FM25040C-G	RAMTRON	获取价格	4Kb Serial 5V F-RAM Memory
FM25040C-GTR	RAMTRON	获取价格	4Kb Serial 5V F-RAM Memory
FM25040-P	ETC	获取价格	4Kb FRAM Serial Memory
FM25040-PS	ETC	获取价格	NVRAM (Ferroelectric Based)
FM25040-PT	ETC	获取价格	NVRAM (Ferroelectric Based)
FM25040-S	ETC	获取价格	4Kb FRAM Serial Memory
FM25080	FM	获取价格	EEPROM
FM250A	RECTRON	获取价格	SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
FM250A-T	RECTRON	获取价格	Rectifier Diode, Schottky, 1 Phase, 1 Element, 2A, 50V V(RRM), Silicon, DO-214AC, SMA, 2 P

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