STK14C88-CF45 データシートの表示（PDF） - Cypress Semiconductor
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STK14C88-CF45 Datasheet PDF : 20 Pages
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STK14C88
32 K x 8 AutoStore nvSRAM
Features
Description
■ 25, 35, 45 ns read access and R/W cycle time
■ Unlimited read/write endurance
The Cypress STK14C88 is a 256 Kb fast static RAM with a
nonvolatile Quantum Trap storage element included with each
memory cell.
■ Automatic nonvolatile STORE on power loss
The SRAM provides the fast access and cycle times, ease of
■ Nonvolatile STORE under hardware or software control
s ■ Automatic RECALL to SRAM on power up
n ■ Unlimited RECALL cycles
ig ■ 1-Million STORE cycles
es ■ 100-year nonvolatile data retention
D ■ Single 5 V+10% power supply
■ Commercial, industrial, military temperatures
w ■ 32-Pin 300 mil SOIC (RoHS-compliant)
e ■ 32-Pin CDIP and LCC packages
use, and unlimited read and write endurance of a normal SRAM.
Data automatically transfers to the nonvolatile storage 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 Cypress nvSRAM is the first monolithic nonvolatile memory
to offer unlimited writes and reads. It is the highest performance,
most reliable nonvolatile memory available.
r N Logic Block Diagram
ded fo A5
n A6
A7
e A8
A9
m A11
A12
m A13
o A14
ec DQ0
DQ1
R DQ2
t DQ3
oDQ4
DQ5
NDQ6
Quantum Trap
512 x 512
STATIC RAM
ARRAY
512 x 512
STORE
RECALL
VCCX VCAP
POWER
CONTROL
STORE/
RECALL
CONTROL
HSB
COLUMN I/O
COLUMN DEC
A0 A1 A2 A3 A4 A10
SOFTWARE
DETECT
A0 - A13
G
DQ7
E
W
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-52038 Rev. *C
• San Jose, CA 95134-1709 • 408-943-2600
Revised March 30, 2011
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