FM28V020TG Ramtron, FM28V020TG Datasheet
FM28V020TG
Manufacturer Part Number
FM28V020TG
Description
TSSOP
Manufacturer
Ramtron
Datasheet
1.FM28V020TG.pdf
(14 pages)
Specifications of FM28V020TG
Date_code
08+
Pre-Production
FM28V020
256Kbit Bytewide F-RAM Memory
Features
256Kbit Ferroelectric Nonvolatile RAM
Superior to Battery-backed SRAM Modules
General Description
The FM28V020 is a 32K x 8 nonvolatile memory that
reads and writes like a standard SRAM. A
ferroelectric random access memory or F-RAM is
nonvolatile, which means that data is retained after
power is removed. It provides data retention for over
10 years while eliminating the reliability concerns,
functional
complexities of battery-backed SRAM (BBSRAM).
Fast write timing and virtually unlimited write
endurance make F-RAM superior to other types of
memory.
In-system operation of the FM28V020 is very similar
to other RAM devices and can be used as a drop-in
replacement for standard SRAM. Read and write
cycles may be triggered by /CE or simply by
changing the address. The F-RAM memory is
nonvolatile due to its unique ferroelectric memory
process. These features make the FM28V020 ideal
for
frequent or rapid writes in the form of an SRAM.
Device specifications are guaranteed over the
industrial temperature range -40°C to +85°C.
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. 2.1
June 2011
Organized as 32K x 8
10
NoDelay™ Writes
Page Mode Operation
Advanced High-Reliability Ferroelectric Process
No battery concerns
Monolithic reliability
True surface mount solution, no rework steps
Superior for moisture, shock, and vibration
Resistant to negative voltage undershoots
nonvolatile
14
Read/Write Cycles
disadvantages,
memory applications requiring
and
system
design
SRAM Replacement
Low Power Operation
Industry Standard Configurations
Pin Configuration
FM28V020-SG
FM28V020-SGTR
FM28V020-TG
FM28V020-TGTR
VDD
A11
A13
A14
A12
WE
NC
OE
NC
A9
A8
A7
A6
A5
A4
A3
JEDEC 32Kx8 SRAM pinout
70 ns Access Time, 140 ns Cycle Time
2.0V – 3.6V Power Supply
Standby Current 90 A (typ)
Active Current 7 mA (typ)
Industrial Temperature -40 C to +85 C
28-pin “Green”/RoHS SOIC (-SG)
32-pin “Green”/RoHS TSOP (-TG)
DQ0
DQ1
DQ2
VSS
A12
A14
A7
A6
A5
A4
A3
A2
A1
A0
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
1850 Ramtron Drive, Colorado Springs, CO 80921
Ordering Information
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Ramtron International Corporation
SOIC
28-pin “Green”/RoHS SOIC
28-pin “Green”/RoHS SOIC,
Tape & Reel
32-pin “Green”/RoHS TSOP
32-pin “Green”/RoHS TSOP,
Tape & Reel
TSOP-I
(800) 545-FRAM, (719) 481-7000
28
27
26
25
24
23
22
21
20
19
18
17
16
15
http://www.ramtron.com
VDD
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
Page 1 of 14
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
NC
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
NC
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