FM24CL16_05 RAMTRON [Ramtron International Corporation], FM24CL16_05 Datasheet

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FM24CL16_05

Manufacturer Part Number
FM24CL16_05
Description
16Kb FRAM Se rial 3V Memory
Manufacturer
RAMTRON [Ramtron International Corporation]
Datasheet
FM24CL16
16Kb FRAM Se rial 3V Memory
Features
16K bit Ferroelectric Nonvolatile RAM
Fast Two-wire Serial Interface
Description
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.
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,
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.
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.
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
Nov. 2005
Organized as 2,048 x 8 bits
Unlimited Read/Write Cycles
45 year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Up to 1MHz Maximum Bus Frequency
Direct Hardware Replacement for EEPROM
the
product
offers
unlimited
write
Low Power Operation
Industry Standard Configuration
Pin Configuration
Pin Names
SDA
SCL
WP
VDD
VSS
Ordering Information
FM24CL16-S
FM24CL16-G
FM24CL16-DG
2.7 - 3.65V Operation
75 A Active Current (100 kHz) @ 3V
1 A Standby Current
Industrial Temperature -40 C to +85 C
8-pin SOIC and 8-pin TDFN Packages
TDFN Footprint Conforms to TSSOP-8
“Green” Packaging Options
VSS
NC
NC
NC
VSS
NC
NC
NC
1850 Ramtron Drive, Colorado Springs, CO 80921
1
2
3
4
1
2
3
4
Function
Serial Data/Address
Serial Clock
Write Protect
Supply Voltage
Ground
Top View
8-pin SOIC
“Green” 8-pin SOIC
“Green” 8-pin TDFN
Ramtron International Corporation
(800) 545-FRAM, (719) 481-7000
8
7
6
5
8
7
6
5
VDD
WP
SCL
SDA
VDD
WP
SCL
SDA
www.ramtron.com
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FM24CL16_05 Summary of contents

Page 1

FM24CL16 16Kb FRAM Se rial 3V Memory Features 16K bit Ferroelectric Nonvolatile RAM Organized as 2,048 x 8 bits Unlimited Read/Write Cycles 45 year Data Retention NoDelay™ Writes Advanced High-Reliability Ferroelectric Process Fast Two-wire Serial Interface Up to 1MHz Maximum ...

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Counter ` SDA Serial to Parallel Converter SCL Control Logic WP Pin Description Pin Name Type Pin Description SDA I/O Serial Data Address: This is a bi-directional data pin for the two-wire interface. It employs an open-drain output and is ...

Page 3

Overview The FM24CL16 is a serial FRAM memory. The memory array is logically organized as a 2,048 x 8 memory array and is accessed using an industry standard two-wire interface. Functional operation of the FRAM is similar to serial EEPROMs. ...

Page 4

SCL SDA Stop (Master) (Master) Stop Condition A stop condition is indicated when the bus master drives SDA from low to high while the SCL signal is high. All operations using the FM24CL16 must end with a Stop condition. If ...

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Page Slave ID Select Figure 4. Slave Address Word Address After the FM24CL16 (as receiver) acknowledges the slave ID, the master will place the word address on the bus for a write operation. The ...

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Start By Master S Slave Address By FM24CL16 Start By Master S Slave Address By FM24CL16 Read Operation There are two types of read operations. They are current address read and selective address read current address read, the ...

Page 7

Start By Master S By FM24CL16 Start Address By Master S Slave Address By FM24CL16 Address Start By Master S Slave ...

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Electrical Specifications Absolute Maximum Ratings Symbol V Power Supply Voltage with respect Voltage on any pin with respect Storage Temperature STG T Lead temperature (Soldering, 10 seconds) LEAD V Electrostatic Discharge Voltage ...

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AC Parameters ( Symbol Parameter f SCL Clock Frequency SCL t Clock Low Period LOW t Clock High Period HIGH t SCL Low to SDA Data Out Valid AA t Bus ...

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Diagram Notes All start and stop timing parameters apply to both read and write cycles. Clock specifications are identical for read and write cycles. Write timing parameters apply to slave address, word address, and write data bits. Functional relationships are ...

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Mechanical Drawing 8-pin SOIC (JEDEC MS-012 variation AA) Pin 1 1.35 4.90 0.10 ± 1.75 1.27 0.33 0.51 Refer to JEDEC MS-012 for complete dimensions and notes. All dimensions in millimeters. SOIC Package Marking Scheme Legend: XXXX= part number, P= ...

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TDFN (3.0mm x 6.4mm body, 0.65mm pitch) Pin 1 3.00 ±0.1 0.75 ±0.05 0.65 0.25 ±0.05 Note: All dimensions in millimeters. This package is footprint compatible with the 8-pin TSSOP. TDFN Package Marking Scheme for Body Size 3mm x ...

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Revision History Revision Date 1.0 2/15/01 1.1 9/29/01 2.0 2/22/02 2.1 3/24/03 2.2 6/24/04 3.0 7/14/04 3.1 11/19/04 3.2 3/8/05 3.3 11/28/05 Rev 3.3 Nov. 2005 Summary Initial Release. Endurance changed to unlimited. Changed to Production status. Added clarification to ...

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