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Ramtron

FM24C16A Datasheet Preview

FM24C16A Datasheet

16Kb FRAM Serial Memory

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FM24C16A
16Kb FRAM Serial Memory
Features
16K bit Ferroelectric Nonvolatile RAM
Organized as 2,048 x 8 bits
High Endurance (1012) Read/Write Cycles
45 year Data Retention
NoDelay™ Writes
Advanced High-Reliability Ferroelectric Process
Fast Two-wire Serial Interface
Up to 1MHz maximum bus frequency
Direct hardware replacement for EEPROM
Description
The FM24C16A 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 over 45
years while eliminating the complexities, overhead,
and system level reliability problems caused by
EEPROM and other nonvolatile memories.
Unlike serial EEPROMs, the FM24C16A performs
write operations at bus speed. No write delays are
incurred. The next bus cycle may commence
immediately without the need for data polling. The
FM24C16A is capable of supporting 1012 read/write
cycles, or a million times more write cycles than
EEPROM.
These capabilities make the FM24C16A 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 the system to write
data more frequently, with less system overhead.
The FM24C16A provides substantial benefits to users
of serial EEPROM, and these benefits are available as
a hardware drop-in replacement. The FM24C16A 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.
Low Power Operation
5V operation
150 µA Active Current (100 kHz)
10 µA Standby Current
Industry Standard Configuration
Industrial Temperature -40° C to +85° C
8-pin SOIC (-S)
“Green” 8-pin SOIC (-G)
Pin Configuration
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VDD
WP
SCL
SDA
Pin Names
SDA
SCL
WP
VDD
VSS
Function
Serial Data/Address
Serial Clock
Write Protect
Supply Voltage 5V
Ground
Ordering Information
FM24C16A-S 8-pin SOIC
FM24C16A-G “Green” 8-pin SOIC
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. 3.0
Mar. 2005
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
www.ramtron.com
Page 1 of 12
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Ramtron

FM24C16A Datasheet Preview

FM24C16A Datasheet

16Kb FRAM Serial Memory

No Preview Available !

FM24C16A
Counter
Address
Latch
256 x 64
FRAM Array
SDA
`
SCL
WP
Serial to Parallel
Converter
Control Logic
8
Data Latch
Figure 1. Block Diagram
Pin Description
Pin Name
SDA
Type
I/O
SCL
WP
VDD
VSS
NC
Input
Input
Supply
Supply
-
Pin Description
Serial Data Address: This is a bi-directional data pin for the two-wire interface. It
employs an open-drain output 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. A pull-up resistor is required.
Serial Clock: The serial clock input for the two-wire interface. Data is clocked-out on
the falling edge and clocked-in on the rising edge.
Write Protect: When WP is high, the entire array is write-protected. When WP is low,
all addresses may be written. This pin is internally pulled down.
Supply Voltage (5V)
Ground
No connect
Rev 3.0
Mar. 2005
Page 2 of 12


Part Number FM24C16A
Description 16Kb FRAM Serial Memory
Maker Ramtron
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FM24C16A Datasheet PDF






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