STK11C68-5 Datasheet, PDF (1/15 Pages) Cypress Semiconductor – 64 Kbit (8K x 8) SoftStore nvSRAM

STK11C68-5 (SMD5962-92324)
64 Kbit (8K x 8) SoftStore nvSRAM
Features
■ 35 ns, 45 ns, and 55 ns access times
■ Pin compatible with industry standard SRAMs
■ Software initiated nonvolatile STORE
■ Unlimited Read and Write endurance
■ Automatic RECALL to SRAM on power up
■ Unlimited RECALL cycles
■ 1,000,000 STORE cycles
■ 100 year data retention
■ Single 5V ± 10% operation
■ Military temperature
■ 28-pin (300 mil) CDIP and 28-pad LCC packages
Functional Description
The Cypress STK11C68-5 is a 64 Kb fast static RAM with a
nonvolatile element in each memory cell. The embedded
nonvolatile elements incorporate QuantumTrap technology to
produce the world’s most reliable nonvolatile memory. The
SRAM provides unlimited read and write cycles, while
independent nonvolatile data resides in the highly reliable
QuantumTrap cell. Data transfers under software control from
SRAM to the nonvolatile elements (the STORE operation). On
power up, data is automatically restored to the SRAM (the
RECALL operation) from the nonvolatile memory. RECALL
operations are also available under software control.
Logic Block Diagram
A₅
A₆
A₇
A₈
A₉
A ₁₁
A ₁₂
DQ ₀
DQ ₁
DQ ₂
DQ ₃
DQ ₄
DQ ₅
DQ ₆
DQ ₇
Quantum Trap
128 X 512
STORE
STATIC RAM
ARRAY
128 X 512
RECALL
COLUMN I/O
COLUMN DEC
A₀ A₁ A₂ A₃ A₄ A₁₀
V_CC
V_CAP
POWER
CONTROL
STORE/
RECALL
CONTROL
HSB
SOFTWARE
DETECT
- A0 A₁₂
OE
CE
WE
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-51001 Rev. *A
• San Jose, CA 95134-1709 • 408-943-2600
Revised April 07, 2009
[+] Feedback