Preliminary
FM24C512
512Kb FRAM Serial Memory
Features
512Kbit Ferroelectric Nonvolatile RAM
Organized as 65,536 x 8 bits
High Endurance 10 Billion (10
10
) Read/Writes
45 year Data Retention
NoDelay Writes
Advanced High-Reliability Ferroelectric Process
Fast Two-wire Serial Interface
Up to 1 MHz Maximum Bus Frequency
Supports Legacy Timing for 100 kHz & 400 kHz
Low Power Operation
5V Operation
250 A Active Current (100 kHz)
120 A Standby Current
Industry Standard Configuration
Industrial Temperature -40 C to +85 C
8-pin Green /RoHS EIAJ SOIC Package
Description
The FM24C512 is a 512-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 45 years
while eliminating the complexities, overhead, and
system level reliability problems caused by
EEPROM and other nonvolatile memories.
The FM24C512 performs write operations at bus
speed. No write delays are incurred. The next bus
cycle may commence immediately without the need
for data polling. In addition, the product offers write
endurance orders of magnitude higher 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 FM24C512 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.
The FM24C512 is available in an 8-pin EIAJ SOIC
package using an industry standard two-wire
protocol. Ramtron s green packages are RoHS
compliant. Specifications are guaranteed over an
industrial temperature range of -40°C to +85°C.
Pin Configuration
NC
A1
A2
VSS
1
2
3
4
8
7
6
5
VDD
WP
SCL
SDA
Pin Names
A1,A2
SDA
SCL
WP
VSS
VDD
Function
Device Select Address
Serial Data/Address
Serial Clock
Write Protect
Ground
Supply Voltage 5V
Ordering Information
FM24C512-G
Green /RoHS 8-pin EIAJ SOIC
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-FRAM, (719) 481-7000
Page 1of 12
Rev. 1.0
Aug. 2006
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
