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STK14D88-3RF35

Description
32KX8 NON-VOLATILE SRAM, 35ns, PDSO48, 0.300 INCH, 0.25 MM PITCH, LEAD FREE, PLASTIC, SSOP-48
Categorystorage    storage   
File Size216KB,15 Pages
ManufacturerCypress Semiconductor
Environmental Compliance  
Download Datasheet Parametric View All

STK14D88-3RF35 Overview

32KX8 NON-VOLATILE SRAM, 35ns, PDSO48, 0.300 INCH, 0.25 MM PITCH, LEAD FREE, PLASTIC, SSOP-48

STK14D88-3RF35 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerCypress Semiconductor
Parts packaging codeSSOP
package instructionSSOP, SSOP48,.4
Contacts48
Reach Compliance Codeunknow
ECCN codeEAR99
Maximum access time35 ns
JESD-30 codeR-PDSO-G48
JESD-609 codee3
length15.88 mm
memory density262144 bi
Memory IC TypeNON-VOLATILE SRAM
memory width8
Humidity sensitivity level3
Number of functions1
Number of terminals48
word count32768 words
character code32000
Operating modeASYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize32KX8
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP48,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Parallel/SerialPARALLEL
Peak Reflow Temperature (Celsius)260
power supply3/3.3 V
Certification statusNot Qualified
Maximum seat height2.79 mm
Maximum standby current0.002 A
Maximum slew rate0.055 mA
Maximum supply voltage (Vsup)3.6 V
Minimum supply voltage (Vsup)2.7 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width7.52 mm
STK14D88-3
32K x 8
AutoStore
nvSRAM
TM
QuantumTrap
CMOS
Nonvolatile Static RAM
FEATURES
25ns, 35ns and 45ns Access Times
“Hands-off” Automatic
STORE
on Power Down
with only a small capacitor
STORE
to
QuantumTrap™
Nonvolatile
Elements is Initiated by Software , device pin
or
AutoStore™
on Power Down
RECALL
to SRAM Initiated by Software or
Power Restore
Unlimited READ, WRITE and
RECALL
Cycles
5mA Typical I
CC
at 200ns Cycle Time
1,000,000
STORE
Cycles to
QuantumTrap™
100-Year Data Retention to
QuantumTrap™
Single 3V +20%, -10% Operation
Commercial and Industrial Temperatures
SSOP and SOIC Packages
RoHS Compliance
TM
DESCRIPTION
The Simtek STK14D88-3 is a fast static RAM with a
nonvolatile element in each memory cell. The
embedded
nonvolatile
elements
incorporate
Simtek’s
QuantumTrap™
technology producing the
world’s most reliable nonvolatile memory. The
SRAM provides unlimited read and write cycles,
while independent, nonvolatile data resides in the
TM
highly reliable
QuantumTrap
cell. Data transfers
from the SRAM to the nonvolatile elements (the
STORE
operation) takes place automatically at
power down. On power up, data is restored to the
SRAM (the
RECALL
operation) from the nonvolatile
memory. Both the
STORE
and
RECALL
operations
are also available under software control.
BLOCK DIAGRAM
A
5
A
6
A
7
A
8
A
9
A
11
A
12
A
13
A
14
Quatum Trap
512 X 512
ROW DECODER
STORE
STATIC RAM
ARRAY
512 X 512
RECALL
V
CC
V
CAP
POWER
CONTROL
STORE/
RECALL
CONTROL
HSB
SOFTWARE
DETECT
INPUT BUFFERS
COLUMN I/O
COLUMN DEC
A
13
– A
0
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
A
0
A
1
A
2
A
3
A
4
A
10
G
E
W
Figure 1. Block Diagram
December 2004
1
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