FM24V02_10 RAMTRON [Ramtron International Corporation], FM24V02_10 Datasheet

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FM24V02_10

Manufacturer Part Number
FM24V02_10
Description
256Kb Serial 3V F-RAM Memory
Manufacturer
RAMTRON [Ramtron International Corporation]
Datasheet
Pre-Production
FM24V02
256Kb Serial 3V F-RAM Memory
Features
256K bit Ferroelectric Nonvolatile RAM
Fast Two-wire Serial Interface
Description
The FM24V02 is a 256Kbit 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 10 years
while eliminating the complexities, overhead, and
system
EEPROM and other nonvolatile memories.
The FM24V02 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
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 FM24V02 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 FM24V02 provides substantial benefits to users
of serial EEPROM, yet these benefits are available in
a hardware drop-in replacement. The devices are
This is a product in the pre-production phase of development. Device
characterization is complete and Ramtron does not expect to change the
specifications. Ramtron will issue a Product Change Notice if any
specification changes are made.
Rev. 2.0
May 2010
Organized as 32,768 x 8 bits
High Endurance 100 Trillion (10
10 year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Up to 3.4 MHz maximum bus frequency
Direct hardware replacement for EEPROM
Supports legacy timing for 100 kHz & 400 kHz
level
orders
reliability
of
magnitude
problems
14
) Read/Writes
higher
caused
than
by
Device ID and Serial Number
Low Voltage, Low Power Operation
Industry Standard Configuration
available in industry standard 8-pin SOIC package
using a familiar two-wire (I
FM24VN02 is offered with a unique serial number
that is read-only and can be used to identify a board
or system. Both devices incorporate a read-only
Device ID that allows the host to determine the
manufacturer, product density, and product revision.
The devices are guaranteed over an industrial
temperature range of -40°C to +85°C.
Pin Configuration
Pin Name
A0-A2
SDA
SCL
WP
VDD
VSS
Device ID reads out Manufacturer ID & Part ID
Unique Serial Number (FM24VN02)
Low Voltage Operation 2.0V – 3.6V
Active Current < 150 µA (typ.
90 µA Standby Current (typ.)
5 µA Sleep Mode Current (typ.)
Industrial Temperature -40° C to +85° C
8-pin “Green”/RoHS SOIC Package
VSS
A0
A1
A2
1850 Ramtron Drive, Colorado Springs, CO 80921
Device Select Address
Function
Serial Data/address
Serial Clock
Write Protect
Supply Voltage
Ground
1
2
3
4
Ramtron International Corporation
(800) 545-FRAM, (719) 481-7000
8
7
6
5
2
http://www.ramtron.com
C) protocol. The
@ 100KHz
SDA
VDD
WP
SCL
Page 1 of 16
)

Related parts for FM24V02_10

FM24V02_10 Summary of contents

Page 1

Pre-Production FM24V02 256Kb Serial 3V F-RAM Memory Features 256K bit Ferroelectric Nonvolatile RAM • Organized as 32,768 x 8 bits • High Endurance 100 Trillion (10 • 10 year Data Retention • NoDelay™ Writes • Advanced High-Reliability Ferroelectric Process Fast ...

Page 2

Counter SDA Serial to Parallel SCL WP A0-A2 Pin Description Pin Name Type Pin Description A0-A2 Input Device Select Address 0-2: These pins are used to select one devices of the same type on the same ...

Page 3

Overview The FM24V02 is a family of serial F-RAM memory devices. The memory array is logically organized as a 32,768 x 8 bit memory array and is accessed using an 2 industry standard two-wire (I C) interface. Functional operation of ...

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 FM24V02 should end with a stop condition. If ...

Page 5

Device Select Slave Figure 4. Slave Address Addressing Overview After the FM24V02 (as receiver) acknowledges the slave address, the master can place the memory address on the ...

Page 6

Start By Master S Slave Address By FM24V02 Start By Master S Slave Address FM24V02 Read Operation There are two basic types of read operations. They are current address read and selective address read current ...

Page 7

This simultaneously aborts the write operation and allows the read command to Start By Master S By FM24V02 Start Address By Master S Slave Address By FM24V02 Start By Master S Slave Address ...

Page 8

Sleep Mode A low power mode called Sleep Mode is implemented on both FM24V02 and FM24VN02 devices. The device will enter this low power state when the Sleep command 86h is clocked-in. Sleep Mode entry can be entered as follows: ...

Page 9

Device ID The FM24V02 and FM24VN02 devices incorporate a means of identifying the device by providing three bytes of data, which are manufacturer, product ID, and die revision. The Device ID is read-only. It can be accessed as follows: 1. ...

Page 10

Unique Serial Number (FM24VN02 only) The FM24VN02 device also incorporates a read-only 8-byte serial number. It can be used to uniquely identify a pc board or system. The serial number includes a 40-bit unique number, an 8-bit CRC, and a ...

Page 11

0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42, 0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A, 0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4, 0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, ...

Page 12

Electrical Specifications Absolute Maximum Ratings Symbol Description 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 ...

Page 13

AC Parameters (T = -40° 85° 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 ...

Page 14

AC Test Conditions Input Pulse Levels Input rise and fall times Input and output timing levels Diagram Notes All start and stop timing parameters apply to both read and write cycles. Clock specifications are identical for read and write cycles. ...

Page 15

Mechanical Drawing 8-pin SOIC (JEDEC Standard MS-012 variation AA) Refer to JEDEC MS-012 for complete dimensions and notes. All dimensions in millimeters. SOIC Package Marking Scheme Legend: XXXXX= part number, P=package type R=rev code, LLLLLLL= lot code XXXXXX-P RIC=Ramtron Int’l ...

Page 16

Revision History Revision Date 0.1 3/2/2009 1.0 1/26/2010 2.0 5/25/2010 Ordering Information Part Number Features FM24V02-G Device ID FM24VN02-G Device ID, S/N FM24V02-GTR Device ID FM24VN02-GTR Device ID, S/N Rev. 2.0 May 2010 Summary Initial Release Changed to Preliminary status. ...

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