
FM24C16
16Kb FRAM Serial Memory
Features
This data sheet contains design specifications for product development.
These specifications may change in any manner without notice
28 July 2000
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058
www.ramtron.com
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16K bit Ferroelectric Nonvolatile RAM
Organized as 2,048 x 8 bits
High endurance 10 Billion (10
10
) read/writes
10 year data retention at 85
°
C
No write delay
Advanced high-reliability ferroelectric process
Fast Two-wire Serial Interface
Up to 400 kHz maximum bus frequency
Direct hardware replacement for EEPROM
Description
The FM24C16 is a 16-kilobit nonvolatile memory
employing an advanced ferroelectric process. A
ferroelectric random access memory, or FRAM, is
nonvolatile but operates in other respects as a RAM.
It provides reliable data retention for 10 years while
eliminating the complexities, overhead, and system
level reliability problems caused by EEPROM and
other nonvolatile memories.
Unlike serial EEPROMs, the FM24C16 performs write
operations at bus speed. No write delays are incurred.
Data is written to the memory array mere hundreds of
nanoseconds after it has been successfully
transferred to the device. The next bus cycle may
commence immediately. In addition the product offers
substantial write endurance compared with other
nonvolatile memories. The FM24C16 is capable of
supporting up to 1E10 read/write cycles -- far more
than most systems will require from a serial memory.
These capabilities make the FM24C16 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 FM24C16 provides substantial benefits to users
of serial EEPROM, yet these benefits are available in a
hardware drop-in replacement. The FM24C16 is
provided in industry standard 8-pin packages using a
familiar two-wire protocol. They are guaranteed over
an industrial temperature range of -40°C to +85°C.
Low Power Operation
True 5V operation
150
μ
A Active current (100 kHz)
10
μ
A standby current
Industry Standard Configuration
Industrial temperature -40
°
C to +85
°
C
8-pin SOP or DIP
Pin Configuration
Pin Names
SDA
SCL
WP
VSS
VDD
Ordering Information
FM24C16-P
FM24C16-S
Function
Serial Data/address
Serial Clock
Write Protect
Ground
Supply Voltage 5V
8-pin plastic DIP
8-pin SOP
NC
NC
NC
VSS
VDD
WP
SCL
SDA