STK11C68 Datasheet, PDF (1/16 Pages) List of Unclassifed Manufacturers – 8K x 8 nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM

FEATURES
• 25, 35, 45, and 55 ns Read Access & R/W Cycle
Times
• Unlimited Read/Write Endurance
• Pin compatible with Industry Standard SRAMs
• Software-initiated Non-Volatile STORE
• Automatic RECALL to SRAM on Power Up
• Unlimited RECALL cycles
• 1 Million STORE Cycles
• 100-Year Non-volatile Data Retention
• Single 5V + 10% Operation
• Commercial, Industrial, and Military Tempera-
tures
• 28 pin 330 mil SOIC (RoHS-Compatible)
• 28-pin CDIP and LCC packages
STK11C68 (SMD5962–92324)
8Kx8 SoftStore nvSRAM
DESCRIPTION
The Simtek STK11C68 is a 64Kb fast static RAM
with a nonvolatile 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 under software control to the non-vol-
atile storage cells (the STORE operation). On
power-up, data is automatically restored to the
SRAM (the RECALL operation). RECALL operations
are also available under software control.
The Simtek nvSRAM is the first monolithic non-
volatile memory to offer unlimited writes and reads.
It is the highest performance, most reliable non-
volatile memory available.
BLOCK DIAGRAM
BLOCK DIAGRAM
QUANTUM TRAP
128 x 512
A₅
STORE
A₆
A₇
A₈
A₉
STATIC RAM
ARRAY
128 X 512
RECALL
A₁₁
A₁₂
DQ₀
DQ₁
DQ₂
DQ₃
DQ₄
DQ₅
DQ₆
DQ₇
COLUMN I/O
COLUMN DEC
A₀ A₁ A₂ A₃ A₄ A₁₀
STORE/
RECALL
CONTROL
SOFTWARE
DETECT
A₀ – A₁₂
G
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.
E
W
1
Document Control #ML0007 Rev 0.3
February, 2007