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Ramtron

FM24CL64B Datasheet Preview

FM24CL64B Datasheet

64Kb Serial 3V F-RAM Memory

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Preliminary
AEC Q100 Grade 1 Compliant
FM24CL64B - Automotive Temp.
64Kb Serial 3V F-RAM Memory
Features
64K bit Ferroelectric Nonvolatile RAM
Organized as 8192 x 8 bits
High Endurance 10 Trillion (1013) Read/Writes
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 Consumption
Low Voltage Operation 3.0-3.6V
6 A Standby Current (+85C)
Industry Standard Configuration
Automotive Temperature -40C to +125C
o Qualified to AEC Q100 Specification
8-pin “Green”/RoHS SOIC Package
Description
The FM24CL64B is a 64Kbit nonvolatile memory
employing an advanced ferroelectric process. A
ferroelectric random access memory or F-RAM is
nonvolatile and performs reads and writes like a
RAM. It provides reliable data retention for years
while eliminating the complexities, overhead, and
system level reliability problems caused by
EEPROM and other nonvolatile memories.
The FM24CL64B 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 write
endurance orders of magnitude higher than
EEPROM. Also, F-RAM exhibits much lower power
during writes than EEPROM since write operations
do not require an internally elevated power supply
voltage for write circuits.
These capabilities make the FM24CL64B 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 FM24CL64B provides substantial benefits to
users of serial EEPROM, yet these benefits are
available in a hardware drop-in replacement. The
device is available in industry standard 8-pin SOIC
package using a familiar two-wire (I2C) protocol. The
device is guaranteed over the automotive temperature
range of -40°C to +125°C.
Pin Configuration
A0
A1
A2
VSS
1
2
3
4
8 VDD
7 WP
6 SCL
5 SDA
Pin Name
A0-A2
SDA
SCL
WP
VDD
VSS
Function
Device Select Address
Serial Data/address
Serial Clock
Write Protect
Supply Voltage
Ground
Ordering Information
FM24CL64B-GA
“Green”/RoHS 8-pin SOIC,
Automotive Grade 1
FM24CL64B-GATR “Green”/RoHS 8-pin SOIC,
Automotive Grade 1,
Tape & Reel
This is a product that has fixed target specifications but are subject
to change pending characterization results.
Rev. 1.1
June 2011
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
http://www.ramtron.com
Page 1 of 12
Datasheet pdf - http://www.DataSheet4U.net/




Ramtron

FM24CL64B Datasheet Preview

FM24CL64B Datasheet

64Kb Serial 3V F-RAM Memory

No Preview Available !

www.DataSheet.co.kr
FM24CL64B - 64Kb 3V I2C F-RAM (Automotive Temp.)
Counter
Address
Latch
1K x 64
FRAM Array
SDA
SCL
WP
A0-A2
Serial to Parallel
Converter
Control Logic
8
Data Latch
Figure 1. FM24CL64B Block Diagram
Pin Description
Pin Name
A0-A2
Type
Input
SDA
I/O
SCL
WP
VDD
VSS
Input
Input
Supply
Supply
Pin Description
Device Select Address 0-2: These pins are used to select one of up to 8 devices of
the same type on the same two-wire bus. To select the device, the address value on
the two pins must match the corresponding bits contained in the slave address. The
address pins are pulled down internally.
Serial Data/Address: This is a bi-directional pin for the two-wire interface. It is
open-drain 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. An external pull-up resistor is
required.
Serial Clock: The serial clock pin for the two-wire interface. Data is clocked out of
the part on the falling edge, and into the device on the rising edge. The SCL input
also incorporates a Schmitt trigger input for noise immunity.
Write Protect: When tied to VDD, addresses in the entire memory map will be write-
protected. When WP is connected to ground, all addresses may be written. This pin
is pulled down internally.
Supply Voltage
Ground
Rev. 1.1
June 2011
Page 2 of 12
Datasheet pdf - http://www.DataSheet4U.net/


Part Number FM24CL64B
Description 64Kb Serial 3V F-RAM Memory
Maker Ramtron
PDF Download

FM24CL64B Datasheet PDF






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