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Ramtron

FM24CL04B Datasheet Preview

FM24CL04B Datasheet

4Kb Serial 3V F-RAM Memory

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www.DataSheet.co.kr
Preliminary
FM24CL04B
4Kb Serial 3V F-RAM Memory
Features
4K bit Ferroelectric Nonvolatile RAM
Organized as 512 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 1 MHz maximum bus frequency
Direct hardware replacement for EEPROM
Supports legacy timing for 100 kHz & 400 kHz
Low Power Operation
2.7V to 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 (-G)
Description
The FM24CL04B is a 4-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 FM24CL04B 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 FM24CL04B is capable of
supporting 1014 read/write cycles, or a million times
more write cycles than EEPROM.
These capabilities make the FM24CL04B 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 FM24CL04B provides substantial benefits to
users of serial EEPROM, yet these benefits are
available in a hardware drop-in replacement. The
FM24CL04B is available in an industry standard 8-
pin SOIC package and uses a familiar two-wire
protocol. The specifications are guaranteed over an
industrial temperature range of -40°C to +85°C.
Pin Configuration
NC
A1
A2
VSS
1
2
3
4
8 VDD
7 WP
6 SCL
5 SDA
Pin Names
A1-A2
SDA
SCL
WP
VSS
VDD
Function
Device Select Address 1 and 2
Serial Data/Address
Serial Clock
Write Protect
Ground
Supply Voltage
Ordering Information
FM24CL04B-G
“Green”/RoHS 8-pin SOIC
FM24CL04B-GTR “Green”/RoHS 8-pin SOIC,
Tape & Reel
This is a product that has fixed target specifications but are subject
to change pending characterization results.
Rev. 1.3
Feb. 2011
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
www.ramtron.com
Page 1 of 12
Datasheet pdf - http://www.DataSheet4U.net/




Ramtron

FM24CL04B Datasheet Preview

FM24CL04B Datasheet

4Kb Serial 3V F-RAM Memory

No Preview Available !

www.DataSheet.co.kr
FM24CL04B
Counter
Address
Latch
64 x 64
FRAM Array
8
SDA Serial to Parallel
Converter
SCL
WP
A1 Control Logic
A2
Data Latch
Figure 1. Block Diagram
Pin Description
Pin Name
A1-A2
I/O
Input
SDA I/O
SCL
WP
NC
VDD
VSS
Input
Input
-
Supply
Supply
Pin Description
Address 1-2: The address pins set the device select address. The device address value
in the 2-wire slave address must match the setting of these two pins. These pins are
internally pulled down.
Serial Data/Address: This is a bi-directional pin used to shift serial data and addresses
for the two-wire interface. It employs an open-drain output and is intended to be wire-
OR’d with other devices on the two-wire bus. The input buffer incorporates a Schmitt
trigger for noise immunity and the output driver includes slope control for falling
edges. A pull-up resistor is required.
Serial Clock: The serial clock input for the two-wire interface. Data is clocked out of
the device on the SCL falling edge, and clocked in on the SCL rising edge. The SCL
input also incorporates a Schmitt trigger input for improved noise immunity.
Write Protect: When WP is high, the entire array is write-protected. When WP is low,
all addresses may be written. This pin is internally pulled down.
No connect
Supply Voltage
Ground
Rev. 1.3
Feb. 2011
Page 2 of 12
Datasheet pdf - http://www.DataSheet4U.net/


Part Number FM24CL04B
Description 4Kb Serial 3V F-RAM Memory
Maker Ramtron
PDF Download

FM24CL04B Datasheet PDF






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