FM24C64B-GTR Ramtron, FM24C64B-GTR Datasheet

FM24C64B-GTR

Manufacturer Part Number

FM24C64B-GTR

Description

SOIC8 T&R

Manufacturer

Ramtron

Datasheets

1.FM24C64B-GTR.pdf (12 pages)

2.FM24C64B-GTR.pdf (12 pages)

3.FM24C64B-GTR.pdf (12 pages)

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Preliminary

FM24C64B

64Kb Serial 5V F-RAM Memory

Features

64K bit Ferroelectric Nonvolatile RAM

•

Fast Two-wire Serial Interface

•

Description

The FM24C64B is a 64-kilobit nonvolatile memory

employing an advanced ferroelectric process. A

ferroelectric random access memory or FRAM is

nonvolatile and performs reads and writes like a

RAM. It provides reliable data retention for 38 years

while eliminating the complexities, overhead, and

system

EEPROM and other nonvolatile memories.

The FM24C64B performs write operations at bus

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

the memory array in the cycle after it has been

successfully transferred to the device. The next bus

cycle may commence immediately without the need

for data polling.

supporting 10

more write cycles than EEPROM.

These capabilities make the FM24C64B 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

writes with less overhead for the system.

The FM24C64B provides substantial benefits to users

of serial EEPROM, yet these benefits are available in

a hardware drop-in replacement. The FM24C64B is

available in an industry standard 8-pin SOIC package

and uses a familiar two-wire protocol. 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.

Rev. 1.3

Feb. 2011

Organized as 8,192 x 8 bits

High Endurance 1 Trillion (10

38 Year Data Retention

NoDelay™ Writes

Advanced High-Reliability Ferroelectric Process

Up to 1 MHz maximum bus frequency

Direct hardware replacement for EEPROM

Supports legacy timing for 100 kHz & 400 kHz

level

read/write cycles, or a million times

reliability

The FM24C64B is capable of

problems

) Read/Writes

caused

Low Power Operation

•

Industry Standard Configuration

•

Pin Configuration

Pin Names

A0-A2

SDA

SCL

VSS

VDD

Ordering Information

FM24C64B-G

FM24C64B-GTR

VSS

5V operation

100 µA Active Current (100 kHz)

4 µA (typ.) Standby Current

Industrial Temperature -40° C to +85° C

8-pin “Green”/RoHS SOIC (-G)

1850 Ramtron Drive, Colorado Springs, CO 80921

Function

Device Select Address

Serial Data/address

Serial Clock

Write Protect

Ground

Supply Voltage

Ramtron International Corporation

“Green”/RoHS 8-pin SOIC

“Green”/RoHS 8-pin SOIC,

Tape & Reel

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

VDD

SCL

SDA

www.ramtron.com

Page 1 of 12

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