Cypress Semiconductor STK11C88 Specification Sheet

Features
■ 25 ns and 45 ns access times
■ Pin compatible with industry standard SRAMs
■
Software initiated STORE and RECALL
■ Automatic RECALL to SRAM on power up
■ Unlimited Read and Write endurance
■ Unlimited RECALL cycles
■ 1,000,000 STORE cycles
■ 100 year data retention
■
Single 5V+10% power supply
■
Commercial and Industrial Temperatures
■ 28-pin (300 mil and 330 mil) SOIC packages
■ RoHS compliance
Logic Block Diagram
Cypress Semiconductor Corporation
Document Number: 001-50591 Rev. **
256 Kbit (32K x 8) SoftStore nvSRAM

Functional Description

The Cypress STK11C88 is a 256 Kb fast static RAM with a
nonvolatile element in each memory cell. The embedded
nonvolatile elements incorporate QuantumTrap
producing 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.
• 198 Champion Court
,
• San Jose CA 95134-1709
STK11C88
™
technology
• 408-943-2600
Revised January 29, 2009
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