Cypress STK11C88 - Manual
Cypress STK11C88 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – Pin Configurations
- Page 4 – Hardware Protect; Noise Considerations; Low Average Active Power; Figure 2; Best Practices
- Page 6 – DC Electrical Characteristics
- Page 7 – Capacitance; Thermal Resistance; AC Test Conditions
- Page 8 – AC Switching Characteristics; SRAM Read Cycle; Switching Waveforms
- Page 9 – SRAM Write Cycle
- Page 10 – STORE INHIBIT or Power Up RECALL; Power up RECALL Duration
- Page 12 – Ordering Information; Commercial; Part Numbering Nomenclature; Lead Finish
- Page 13 – Package Diagrams
- Page 15 – Worldwide Sales and Design Support; Change
STK11C88
256 Kbit (32K x 8) SoftStore nvSRAM
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Document Number: 001-50591 Rev. **
Revised January 29, 2009
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
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
™
technology
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.
Logic Block Diagram
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
STK11C88 Document Number: 001-50591 Rev. ** Page 2 of 15 Pin Configurations Figure 1. Pin Diagram - 28-Pin SOIC Table 1. Pin Definitions - 28-Pin SOIC Pin Name Alt IO Type Description A 0 –A 14 Input Address Inputs. Used to select one of the 32,768 bytes of the nvSRAM. DQ 0 -DQ 7 Input or Output Bid...
STK11C88 Document Number: 001-50591 Rev. ** Page 4 of 15 Hardware Protect The STK11C88 offers hardware protection against inadvertentSTORE operation and SRAM WRITEs during low voltage conditions. When V CC <V SWITCH , all externally initiated STORE operations and SRAM WRITEs are inhibited. Noise ...
STK11C88 Document Number: 001-50591 Rev. ** Page 6 of 15 Maximum Ratings Exceeding maximum ratings may shorten the useful life of thedevice. These user guidelines are not tested. Storage Temperature ................................. –65 ° C to +150 ° C Temperature under bias ...........................
