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FM25CL64-S Fiches technique(PDF) 1 Page - Ramtron International Corporation

No de pièce FM25CL64-S
Description  64Kb FRAM Serial 3V Memory
Download  13 Pages
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Fabricant  RAMTRON [Ramtron International Corporation]
Site Internet  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM25CL64-S Fiches technique(HTML) 1 Page - Ramtron International Corporation

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This product conforms to specifications per the terms of the Ramtron
Ramtron International Corporation
standard warranty. Production processing does not necessarily in-
1850 Ramtron Drive, Colorado Springs, CO 80921
clude testing of all parameters.
(800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058
www.ramtron.com
Rev. 2.1
Apr. 2003
Page 1 of 13
FM25CL64
64Kb FRAM Serial 3V Memory
Features
64K bit Ferroelectric Nonvolatile RAM
Organized as 8,192 x 8 bits
Unlimited Read/Write Cycles
10 Year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Very Fast Serial Peripheral Interface - SPI
Up to 20 MHz Frequency
Direct Hardware Replacement for EEPROM
SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)
Sophisticated Write Protection Scheme
Hardware Protection
Software Protection
Low Power Consumption
Low Voltage Operation 2.7-3.65V
1
µA Standby Current
Industry Standard Configuration
Industrial Temperature -40
°C to +85°C
8-pin SOIC
Description
The FM25CL64 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 10 years
while eliminating the complexities, overhead, and
system
level
reliability
problems
caused
by
EEPROM and other nonvolatile memories.
Unlike serial EEPROMs, the FM25CL64 performs
write operations at bus speed. No write delays are
incurred. The next bus cycle may commence
immediately without the need for data polling. The
next bus cycle may start immediately. In addition, the
product offers virtually unlimited write endurance,
orders of magnitude more endurance than EEPROM.
Also, FRAM exhibits much lower power during
writes than EEPROM since write operations do not
require an internally elevated power supply voltage
for write circuits.
These capabilities make the FM25CL64 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 FM25CL64 provides substantial benefits to users
of
serial
EEPROM
as
a
hardware
drop-in
replacement. The FM25CL64 uses the high-speed
SPI bus, which enhances the high-speed write
capability
of
FRAM
technology.
Device
specifications are guaranteed over an industrial
temperature range of -40°C to +85°C.
Pin Configuration
Pin Name
Function
/CS
Chip Select
/WP
Write Protect
/HOLD
Hold
SCK
Serial Clock
SI
Serial Data Input
SO
Serial Data Output
VDD
Supply Voltage
VSS
Ground
Ordering Information
FM25CL64-S
8-pin SOIC
CS
SO
WP
VSS
VDD
HOLD
SCK
SI
1
2
3
4
8
7
6
5


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