FM28V202 Datasheet, PDF (1/18 Pages) Cypress Semiconductor – 2Mbit (128Kx16)F-RAM Memory

Preliminary
FM28V202
2Mbit (128K×16)F-RAM Memory
FEATURES
2Mbit Ferroelectric Nonvolatile RAM
Organized as 128Kx16
Configurable as 256Kx8 Using /UB, /LB
10¹⁴ Read/Write Cycles
NoDelay™ Writes
Page Mode Operation to 33MHz
Advanced High-Reliability Ferroelectric Process
SRAM Compatible
Industry Std. 128Kx16 SRAM Pinout
60 ns Access Time, 90 ns Cycle Time
Advanced Features
Software Programmable Block Write Protect
DESCRIPTION
The FM28V202 is a 128Kx16 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 disadvantages, and system design
complexities of battery-backed SRAM (BBSRAM).
Fast write timing and high write endurance make the
F-RAM superior to other types of memory.
In-system operation of the FM28V202 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 FM28V202 ideal
for nonvolatile memory applications requiring
frequent or rapid writes in the form of an SRAM.
The device is available in a 400 mil 44-pin TSOP-II
surface mount package. Device specifications are
guaranteed over industrial temperature range –40°C
to +85°C.
Superior to Battery-backed SRAM Modules
No Battery Concerns
Monolithic Reliability
True Surface Mount Solution, No Rework Steps
Superior for Moisture, Shock, and Vibration
Low Power Operation
2.0V – 3.6V Power Supply
Standby Current 120 A (typ)
Active Current 7 mA (typ)
Industry Standard Configuration
Industrial Temperature -40 C to +85 C
44-pin “Green”/RoHS TSOP-II package
Pin Configuration
A4
1
A3
2
A2
3
A1
4
A0
5
CE
6
DQ0
7
DQ1
8
DQ2
9
DQ3
10
VDD
11
VSS
12
DQ4
13
DQ5
14
DQ6
15
DQ7
16
WE
17
A16
18
A15
19
A14
20
A13
21
A12
22
44
A5
43
A6
42
A7
41
OE
40
UB
39
LB
38
DQ15
37
DQ14
36
DQ13
35
DQ12
34
VSS
33
VDD
32
DQ11
31
DQ10
30
DQ9
29
DQ8
28
/ZZ
27
A8
26
A9
25
A10
24
A11
23
NC
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.
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document Number: 001-86602 Rev. **
Revised March 12, 2013