Preliminary
FM24CL16B
16Kb Serial 3V F-RAM Memory
Features
16K bit Ferroelectric Nonvolatile RAM
Low Power Operation
•
•
•
2.7 - 3.65V Operation
•
•
•
•
•
Organized as 2,048 x 8 bits
100 µA Active Current (100 kHz)
3 µA (typ.) Standby Current
High Endurance 1014 Read/Writes
38 year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Industry Standard Configuration
•
•
Industrial Temperature -40° C to +85° C
8-pin “Green”/RoHS SOIC and TDFN Packages
Fast Two-wire Serial Interface
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•
•
Up to 1MHz Maximum Bus Frequency
Direct Hardware Replacement for EEPROM
Supports legacy timing for 100 kHz & 400 kHz
Description
Pin Configuration
The FM24CL16B is a 16-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 level reliability problems caused by EEPROM
and other nonvolatile memories.
1
8
7
6
5
VDD
WP
NC
NC
2
3
NC
SCL
SDA
4
VSS
The FM24CL16B 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. The FM24CL16B is capable of
supporting 1014 read/write cycles, or a million times
more write cycles than EEPROM.
1
2
3
4
8
VDD
WP
SCL
SDA
NC
NC
NC
7
6
5
VSS
Pin Names
SDA
Function
These capabilities make the FM24CL16B 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 a long write time
can cause data loss. The combination of features
allows the system to write data more frequently, with
less system overhead.
Serial Data/Address
Serial Clock
SCL
WP
VDD
VSS
Write Protect
Supply Voltage
Ground
Ordering Information
FM24CL16B-G
“Green”/RoHS 8-pin SOIC
“Green”/RoHS 8-pin SOIC,
Tape & Reel
“Green”/RoHS 8-pin TDFN
“Green”/RoHS 8-pin TDFN,
Tape & Reel
The FM24CL16B provides substantial benefits to
users of serial EEPROM, yet these benefits are
available in a hardware drop-in replacement. The
FM24CL16B is available in an industry standard 8-
pin SOIC package and uses a familiar two-wire
protocol. The specifications are guaranteed over the
industrial temperature range from -40°C to +85°C.
FM24CL16B-GTR
FM24CL16B-DG
FM24CL16B-DGTR
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
www.ramtron.com
Rev. 1.4
Feb. 2011
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