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STK12C68-LF25TR

Description
8K X 8 NON-VOLATILE SRAM, 25 ns, PDSO28
Categorystorage   
File Size284KB,20 Pages
ManufacturerSimtek
Websitehttp://www.simtek.com
Download Datasheet Parametric View All

STK12C68-LF25TR Overview

8K X 8 NON-VOLATILE SRAM, 25 ns, PDSO28

STK12C68-LF25TR Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals28
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage5.5 V
Minimum supply/operating voltage4.5 V
Rated supply voltage5 V
maximum access time25 ns
Processing package description0.330 INCH, ROHS COMPLIANT, PLASTIC, SOIC-28
stateACTIVE
CraftsmanshipCMOS
packaging shapeRectangle
Package SizeSMALL OUTLINE
surface mountYes
Terminal formGULL WING
Terminal spacing1.27 mm
terminal coatingMATTE Tin
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
memory width8
organize8K × 8
storage density65536 deg
operating modeSynchronize
Number of digits8192 words
Number of digits8K
Memory IC typenon-volatile memory
serial parallelparallel
STK12C68 (SMD5962-94599)
8Kx8 AutoStore nvSRAM
FEATURES
• 25, 35, 45, 55 ns Read Access & Write Cycle Time
• Unlimited Read/Write Endurance
• Automatic Non-volatile STORE on Power Loss
• Non-Volatile STORE Under Hardware or Software
Control
• Automatic RECALL to SRAM on Power Up
• Unlimited RECALL Cycles
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 5V ± 10% Power Supply
• Commercial, Industrial, Military Temperatures
• 28-pin 330-mil SOIC, 300-mil PDIP, and 600-mil
PDIP Packages (RoHS-Compliant)
• 28-Pin CDIP and LCC Military Packages
DESCRIPTION
The Simtek STK12C68 is a 64Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
The SRAM provides the fast access & cycle times,
ease of use and unlimited read & write endurance of
a normal SRAM.
Data transfers automatically to the non-volatile stor-
age cells when power loss is detected (the
STORE
operation). On power up, data is automatically
restored to the SRAM (the
RECALL
operation). Both
STORE and RECALL operations are also available
under software control.
The Simtek nvSRAM is the first monolithic non-vola-
tile memory to offer unlimited writes and reads. It is
the highest performance, most reliable non-volatile
memory available.
Block Diagram
V
CCX
V
CAP
QUANTUM TRAP
128 x 512
POWER
CONTROL
ROW DECODER
A
5
A
6
A
7
A
8
A
9
A
11
A
12
STORE
STATIC RAM
ARRAY
128 X 512
RECALL
STORE/
RECALL
CONTROL
SOFTWARE
DETECT
A
0
– A
12
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
INPUT BUFFERS
COLUMN I/O
COLUMN DEC
A
0
A
1
A
2
A
3
A
4
A
10
G
E
W
This product conforms to specifications per the
terms of Simtek standard warranty. The product
has completed Simtek internal qualification testing
and has reached production status.
1
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