FM24C16A
16Kb FRAM Serial Memory
Features
Low Power Operation
16K bit Ferroelectric Nonvolatile RAM
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5V operation
150 µA Active Current (100 kHz)
10 µA Standby Current
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Organized as 2,048 x 8 bits
High Endurance (1012) 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 (-S)
“Green” 8-pin SOIC (-G)
Fast Two-wire Serial Interface
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Up to 1MHz maximum bus frequency
Direct hardware replacement for EEPROM
Description
Pin Configuration
The FM24C16A 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 over 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 FM24C16A 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
FM24C16A is capable of supporting 1012 read/write
cycles, or a million times more write cycles than
EEPROM.
Pin Names
SDA
SCL
WP
VDD
VSS
Function
Serial Data/Address
Serial Clock
Write Protect
Supply Voltage 5V
Ground
These capabilities make the FM24C16A 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 the system to write
data more frequently, with less system overhead.
Ordering Information
FM24C16A-S
FM24C16A-G
8-pin SOIC
“Green” 8-pin SOIC
The FM24C16A provides substantial benefits to users
of serial EEPROM, and these benefits are available as
a hardware drop-in replacement. The FM24C16A 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.
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
Rev. 3.0
Mar. 2005
www.ramtron.com
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