FM24C64-G Ramtron, FM24C64-G Datasheet

IC, FRAM, 64KBIT, 1MHZ, SOIC-8

FM24C64-G

Manufacturer Part Number
FM24C64-G
Description
IC, FRAM, 64KBIT, 1MHZ, SOIC-8
Manufacturer
Ramtron
Datasheet

Specifications of FM24C64-G

Memory Size
64Kbit
Memory Configuration
8K X 8
Ic Interface Type
2 Wire, Serial
Supply Voltage Range
4.5V To 5.5V
Memory Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number
Manufacturer
Quantity
Price
Part Number:
FM24C64-G
Manufacturer:
RAMTRON
Quantity:
7
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FM24C64-G
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RAMTRON
Quantity:
20 000
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FM24C64-GTR
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RAM
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Part Number:
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FM24C64
64Kb FRAM Serial Memory
Features
64K bit Ferroelectric Nonvolatile RAM
Fast Two-wire Serial Interface
Description
The FM24C64 is a 64-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
EEPROM and other nonvolatile memories.
The FM24C64 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. The FM24C64 is
capable of supporting 10
million times more write cycles than EEPROM.
These capabilities make the FM24C64 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
writes with less overhead for the system.
The FM24C64 provides substantial benefits to users
of serial EEPROM, yet these benefits are available in
a hardware drop-in replacement. The FM24C64 is
available in an industry standard 8-pin SOIC package
using a two-wire protocol. The specifications are
guaranteed over an industrial temperature range of
-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. 3.2
Feb. 2011
Organized as 8,192 x 8 bits
High Endurance 1 Trillion (10
45 Year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Up to 1 MHz maximum bus frequency
Direct hardware replacement for EEPROM
Supports legacy timing for 100 kHz & 400 kHz
level
reliability
12
read/write cycles, or a
problems
12
) Read/Writes
caused
by
Industry Standard Configuration
Pin Configuration
Low Power Operation
* End of life. Last time buy June 2009.
Pin Names
A0-A2
SDA
SCL
WP
VSS
VDD
Ordering Information
FM24C64-G
FM24C64-GTR
FM24C64-S *
FM24C64-STR *
5V operation
150 µA Active Current (100 kHz)
10 µA Standby Current
Industrial Temperature -40° C to +85° C
8-pin “Green”/RoHS SOIC (-G)
Grade 3 AEC-Q100 Qualified (-G)
VSS
A0
A1
A2
1850 Ramtron Drive, Colorado Springs, CO 80921
Function
Device Select Address
Serial Data/address
Serial Clock
Write Protect
Ground
Supply Voltage
1
2
3
4
Ramtron International Corporation
“Green”/RoHS 8-pin SOIC
“Green”/RoHS 8-pin SOIC,
Tape & Reel
8-pin SOIC
8-pin SOIC, Tape & Reel
(800) 545-FRAM, (719) 481-7000
8
7
6
5
www.ramtron.com
VDD
WP
SCL
SDA
1 of 12

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FM24C64-G Summary of contents

Page 1

... SOIC (-G) • Grade 3 AEC-Q100 Qualified (-G) Pin Configuration caused by VSS Pin Names A0-A2 SDA SCL WP VSS VDD Ordering Information FM24C64-G FM24C64-GTR FM24C64-S * FM24C64-STR * * End of life. Last time buy June 2009. VDD SCL 3 6 SDA 4 5 Function Device Select Address Serial Data/address ...

Page 2

... When WP is low, all addresses may be written. This pin must not be left floating. VDD Supply Supply Voltage: 5V VSS Supply Ground Rev. 3.2 Feb. 2011 Address Latch Converter Figure 1. FM24C64 Block Diagram FM24C64 1,024 x 64 FRAM Array 8 Data Latch ...

Page 3

... This is explained in more detail in the interface section below. Users can expect several obvious system benefits from the FM24C64 due to its fast write cycle and high endurance as compared with EEPROM. However there are less obvious benefits as well. For example in a high noise environment, the fast-write operation is less susceptible to corruption than an EEPROM since it is completed quickly ...

Page 4

... If the receiver acknowledges the last byte, this will cause the FM24C64 to attempt to drive the bus on the next clock while the master is sending a new command such as a Stop command. ...

Page 5

... After the address information has been transmitted, data transfer between the bus master and the FM24C64 can begin. For a read operation, the FM24C64 will place 8 data bits on the bus then wait for an Acknowledge from the master. If the Acknowledge occurs, the FM24C64 will transfer the next sequential byte ...

Page 6

... Current Address & Sequential Read The FM24C64 uses an internal latch to supply the address for a read operation. A current address read uses the existing value in the address latch as a starting place for the read operation. The system reads from the address immediately following that of the last operation ...

Page 7

... The FRAM architecture is based on an array of rows which are subdivided into segments. Rows (defined by A12-A5) are subdivided into 4 segments (A4-A3). Each access causes an endurance cycle for a row segment. In the FM24C64, there are 8 bytes (defined by A2-A0) per Rev. 3.2 Feb. 2011 Address Start ...

Page 8

... DD Min Typ 4.5 5.0 115 400 1 1 -0 other inputs -0. Stop command issued FM24C64 Ratings -1.0V to +7.0V -1.0V to +7.0V and V < V +1. -55° 125°C 300° C 4kV 250V MSL-1 Max Units Notes 5 150 µA 500 µA 1.2 ...

Page 9

... DD Max Units FM24C64 Max Min Max Units Notes 400 0 1000 kHz 0.6 µs 0.4 µs 0.9 0.55 µs 0.5 µs 0.25 µs 0.25 µ 100 ns 300 300 ...

Page 10

... tHIGH 1/fSCL Valid Valid tAA tDH Data bit 7 Data bit 6 from FM24C64 from FM24C64 5-0 from FM24C64 tHD:STA tHD:DAT tSU:DAT Valid Valid Data/Address bit 7 Data/Address bit 6 Data/Address bit 5-0 to FM24C64 to FM24C64 Min Units 45 Years FM24C64 Equivalent AC Load Circuit 5.5V 1700 Ω ...

Page 11

... SOIC Package Marking Scheme Legend: XXXX= part number, P= package type LLLLLLL= lot code XXXXXXX-P RIC=Ramtron Int’l Corp, YY=year, WW=work week LLLLLLL RICYYWW Example: FM24C64, “Green” SOIC package, Year 2004, Work Week 39 FM24C64-G A40003G1 RIC0439 Rev. 3.2 Feb. 2011 FM24C64 ...

Page 12

... Changed Data Retention spec. Added ESD and package MSL ratings. New rev. number to comply with new scheme. Added tape and reel ordering information. Added last time buy notice on –S ordering number. Added notation that –G parts are Grade 3. Not Recommended for New Designs. Alternative: FM24C64B. FM24C64 12 cycles. Rewrote Data Retention and ...

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