FM24CL16B Datasheet, PDF (1/13 Pages) Ramtron International Corporation – 16Kb Serial 3V F-RAM Memory

Preliminary
FM24CL16B
16Kb Serial 3V F-RAM Memory
Features
16K bit Ferroelectric Nonvolatile RAM
• Organized as 2,048 x 8 bits
• High Endurance 10¹⁴ Read/Writes
• 38 year Data Retention
• NoDelay™ Writes
• Advanced High-Reliability Ferroelectric Process
Fast Two-wire Serial Interface
• Up to 1MHz Maximum Bus Frequency
• Direct Hardware Replacement for EEPROM
• Supports legacy timing for 100 kHz & 400 kHz
Description
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.
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.
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.
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.
This is a product that has fixed target specifications but are subject
to change pending characterization results.
Rev. 1.4
Feb. 2011
Low Power Operation
• 2.7 - 3.65V Operation
• 100 µA Active Current (100 kHz)
• 3 µA (typ.) Standby Current
Industry Standard Configuration
• Industrial Temperature -40° C to +85° C
• 8-pin “Green”/RoHS SOIC and TDFN Packages
Pin Configuration
NC
1
8
VDD
NC
2
7
WP
NC
3
6
SCL
VSS
4
5
SDA
Top View
NC 1
NC 2
NC ³
VSS ⁴
8 VDD
7 WP
6 SCL
5 SDA
Pin Names
SDA
SCL
WP
VDD
VSS
Function
Serial Data/Address
Serial Clock
Write Protect
Supply Voltage
Ground
Ordering Information
FM24CL16B-G
“Green”/RoHS 8-pin SOIC
FM24CL16B-GTR
“Green”/RoHS 8-pin SOIC,
Tape & Reel
FM24CL16B-DG
“Green”/RoHS 8-pin TDFN
FM24CL16B-DGTR “Green”/RoHS 8-pin TDFN,
Tape & Reel
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, [phone]
www.ramtron.com
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