Datasheet > FM24C256-S

FM24C256-S

更新时间： 2024-09-13 23:52:19

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
12页	82K
描述
IC-SM-256K SERIAL FRAM

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中文翻译

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数据手册

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FM24C256-S 数据手册

Preliminary

FM24C256

256Kb FRAM Serial Memory

Features

Low Power Operation

256K bit Ferroelectric Nonvolatile RAM

True 5V operation

150 mA Active current (100 kHz)

10 mA standby current

Organized as 32,768 x 8 bits

High endurance 10 Billion (10¹⁰) read/writes

10 year data retention at 85° C

NoDelay™ write

Industry Standard Configuration

Advanced high-reliability ferroelectric process

Industrial temperature -40° C to +85° C

20-pin SOP

Fast Two-wire Serial Interface

Up to 1 MHz maximum bus frequency

Supports legacy timing for 100 kHz & 400 kHz

Description

Pin Configuration

The FM24C256 is a 256-kilobit nonvolatile memory

employing an advanced ferroelectric process. A

ferroelectric random access memory or FRAM is

nonvolatile but operates in other respects as a RAM.

It provides reliable data retention for 10 years while

eliminating the complexities, overhead, and system

level reliability problems caused by EEPROM and

other nonvolatile memories.

VDD

The FM24C256 performs write operations at bus

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

the memory array mere hundreds of nanoseconds

after it has been successfully transferred to the

device. The next bus cycle may commence

immediately. In addition, the product offers

substantial write endurance compared with other

nonvolatile memories. The FM24C256 is capable of

supporting up to 1E10-read/write cycles -- far more

than most systems will require from a serial memory.

SCL

SDA

VSS

Pin Names

A0-A2

SDA

SCL

Function

These capabilities make the FM24C256 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. The

combination of features allows more frequent data

writing with less overhead for the system.

Device Select Address

Serial Data/address

Serial Clock

Write Protect

Ground

VSS

VDD

Supply Voltage 5V

The FM24C256 is provided in a 20-pin SOP package

using a familiar two-wire protocol. It is guaranteed

over an industrial temperature range of -40°C to

+85°C.

Ordering Information

FM24C256-S

20-pin SOP

This data sheet contains design specifications for product development.

This product is still under development, these specifications may

change in any manner without notice

Ramtron International Corporation

1850 Ramtron Drive, Colorado Springs, CO 80921

(800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058

www.ramtron.com

11 August 2000

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与FM24C256-S相关器件

型号	品牌	获取价格	描述	数据表
FM24C256-S1	RAMTRON	获取价格	Memory Circuit, 32KX8, PDSO8, SOP-8
FM24C256-SE	RAMTRON	获取价格	256Kb FRAM Serial Memory
FM24C256VM8	ETC	获取价格	I2C Serial EEPROM
FM24C256VM8X	FAIRCHILD	获取价格	EEPROM, 32KX8, Serial, CMOS, PDSO8, PLASTIC, SOIC-8
FM24C256VN	ETC	获取价格	I2C Serial EEPROM
FM24C256YYX	FAIRCHILD	获取价格	256 KBit 2-Wire Bus Interface Serial EEPROM with Write Protect
FM24C32	FAIRCHILD	获取价格	32K-Bit Standard 2-Wire Bus Interface Serial EEPROM
FM24C32A	FM	获取价格	EEPROM
FM24C32D	FM	获取价格	EEPROM
FM24C32U	FAIRCHILD	获取价格	32K-Bit Standard 2-Wire Bus Interface Serial EEPROM

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