FM24CL16
16Kb FRAM Se rial 3V Memory
Features
Low Power Operation
16K bit Ferroelectric Nonvolatile RAM
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•
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2.7 - 3.65V Operation
75 µA Active Current (100 kHz) @ 3V
1 µA Standby Current
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•
•
•
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Organized as 2,048 x 8 bits
Unlimited Read/Write Cycles
45 year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Industry Standard Configuration
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Industrial Temperature -40° C to +85° C
8-pin SOIC and 8-pin TDFN Packages
TDFN Footprint Conforms to TSSOP-8
“Green” Packaging Options
Fast Two-wire Serial Interface
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Up to 1MHz Maximum Bus Frequency
Direct Hardware Replacement for EEPROM
Description
Pin Configuration
The FM24CL16 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 45 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
2
NC
3
NC
SCL
SDA
4
VSS
Unlike serial EEPROMs, the FM24CL16 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 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.
1
2
3
4
NC
NC
NC
8
7
6
5
VDD
WP
SCL
SDA
Top View
VSS
Pin Names
SDA
Function
Serial Data/Address
Serial Clock
SCL
WP
VDD
VSS
These capabilities make the FM24CL16 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.
Write Protect
Supply Voltage
Ground
Ordering Information
FM24CL16-S
FM24CL16-G
FM24CL16-DG “Green” 8-pin TDFN
8-pin SOIC
“Green” 8-pin SOIC
The FM24CL16 is available in an industry standard
8-pin SOIC and uses a two-wire protocol. The
specifications are guaranteed over the industrial
temperature range from -40°C to +85°C.
This product conforms to specifications per the terms of the Ramtron
standard warranty. The product has completed Ramtron’s internal
qualification testing and has reached production status.
Rev. 3.3
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
www.ramtron.com
Nov. 2005
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