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Cypress Semiconductor Electronic Components Datasheet

FM24CL64B Datasheet

64-Kbit (8K x 8) Serial (I2C) F-RAM

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FM24CL64B
64-Kbit (8K × 8) Serial (I2C) F-RAM
64-Kbit (8K × 8) Serial (I2C) F-RAM
Features
64-Kbit ferroelectric random access memory (F-RAM) logically
organized as 8K × 8
High-endurance 100 trillion (1014) read/writes
151-year data retention (See Data Retention and Endurance
on page 10)
NoDelay™ writes
Advanced high-reliability ferroelectric process
Fast 2-wire Serial interface (I2C)
Up to 1-MHz frequency
Direct hardware replacement for serial (I2C) EEPROM
Supports legacy timings for 100 kHz and 400 kHz
Low power consumption
100 A (typ) active current at 100 kHz
3 A (typ) standby current
Voltage operation: VDD = 2.7 V to 3.65 V
Industrial temperature: –40 C to +85 C
Packages
8-pin small outline integrated circuit (SOIC) package
8-pin thin dual flat no leads (DFN) package
Restriction of hazardous substances (RoHS) compliant
Functional Description
The FM24CL64B is a 64-Kbit nonvolatile memory employing an
advanced ferroelectric process. A ferroelectric random access
memory or F-RAM is nonvolatile and performs reads and writes
similar to a RAM. It provides reliable data retention for 151 years
while eliminating the complexities, overhead, and system-level
reliability problems caused by EEPROM and other nonvolatile
memories.
Unlike EEPROM, the FM24CL64B performs write operations at
bus speed. No write delays are incurred. Data is written to the
memory array immediately after each byte is successfully
transferred to the device. The next bus cycle can commence
without the need for data polling. In addition, the product offers
substantial write endurance compared with other nonvolatile
memories. 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. The
FM24CL64B is capable of supporting 1014 read/write cycles, or
100 million times more write cycles than EEPROM.
These capabilities make the FM24CL64B ideal for nonvolatile
memory applications, requiring frequent or rapid writes.
Examples range from data logging, 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
(I2C) EEPROM as a hardware drop-in replacement. The device
specifications are guaranteed over an industrial temperature
range of –40 C to +85 C.
For a complete list of related documentation, click here.
Logic Block Diagram
Counter
Address
Latch
13
SDA
SCL
WP
A2-A0
Serial to Parallel
Converter
Control Logic
8
8Kx8
F-RAM Array
8
Data Latch
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-84458 Rev. *K
• San Jose, CA 95134-1709 • 408-943-2600
Revised December 5, 2018


Cypress Semiconductor Electronic Components Datasheet

FM24CL64B Datasheet

64-Kbit (8K x 8) Serial (I2C) F-RAM

No Preview Available !

FM24CL64B
Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 3
Functional Overview ........................................................ 4
Memory Architecture ........................................................ 4
I2C Interface ...................................................................... 4
STOP Condition (P) ..................................................... 4
START Condition (S) ................................................... 4
Data/Address Transfer ................................................ 5
Acknowledge/No-acknowledge ................................... 5
Slave Device Address ................................................. 6
Addressing Overview .................................................. 6
Data Transfer .............................................................. 6
Memory Operation ............................................................ 6
Write Operation ........................................................... 6
Read Operation ........................................................... 7
Endurance ......................................................................... 8
Maximum Ratings ............................................................. 9
Operating Range ............................................................... 9
DC Electrical Characteristics .......................................... 9
Data Retention and Endurance ..................................... 10
Capacitance .................................................................... 10
Thermal Resistance ........................................................ 10
AC Test Loads and Waveforms ..................................... 10
AC Test Conditions ........................................................ 10
AC Switching Characteristics ....................................... 11
Power Cycle Timing ....................................................... 12
Ordering Information ...................................................... 13
Ordering Code Definitions ......................................... 13
Package Diagrams .......................................................... 14
Acronyms ........................................................................ 16
Document Conventions ................................................. 16
Units of Measure ....................................................... 16
Document History Page ................................................. 17
Sales, Solutions, and Legal Information ...................... 19
Worldwide Sales and Design Support ....................... 19
Products .................................................................... 19
PSoC® Solutions ...................................................... 19
Cypress Developer Community ................................. 19
Technical Support ..................................................... 19
Document Number: 001-84458 Rev. *K
Page 2 of 19


Part Number FM24CL64B
Description 64-Kbit (8K x 8) Serial (I2C) F-RAM
Maker Cypress Semiconductor
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FM24CL64B Datasheet PDF






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