link to page 18 link to page 19 link to page 19 link to page 19 link to page 20 link to page 3 link to page 3 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 link to page 7 link to page 7 link to page 7 link to page 9 link to page 9 link to page 9 link to page 9 link to page 9 link to page 10 link to page 10 link to page 10 link to page 11 link to page 13 link to page 13 link to page 14 link to page 14 link to page 15 link to page 15 link to page 16 link to page 17 link to page 17 link to page 17 link to page 21 link to page 21 link to page 21 link to page 21 link to page 21 link to page 21 STK14C88CContentsPinout .. 3AutoStore/Power-up RECALL ... 13Pin Definitions .. 3Switching Waveforms .. 13Device Operation .. 4Software Controlled STORE/RECALL Cycle .. 14 SRAM Read .. 4 Switching Waveforms .. 14 SRAM Write ... 4 Hardware STORE Cycle ... 15 AutoStore Operation .. 4 Switching Waveforms .. 15 Hardware STORE Operation ... 4 Truth Table For SRAM Operations .. 16 Hardware RECALL (Power-up) ... 5 Ordering Information .. 17 Software STORE ... 5 Ordering Code Definitions Software RECALL ... 5 for Industrial Temperature .. 17 Preventing AutoStore .. 5 Ordering Code Definitions Data Protection .. 5 for Military Temperature ... 17 Maximum Ratings ... 7Package Diagrams .. 18Operating Range ... 7Acronyms .. 19DC Electrical Characteristics .. 7Document Conventions ... 19Data Retention and Endurance ... 9 Units of Measure ... 19 Capacitance .. 9Document History Page ... 20Thermal Resistance .. 9Sales, Solutions, and Legal Information .. 21AC Test Loads .. 9 Worldwide Sales and Design Support ... 21 AC Test Conditions .. 9 Products .. 21 AC Switching Characteristics ... 10 PSoC® Solutions .. 21 SRAM Read Cycle .. 10 Cypress Developer Community ... 21 SRAM Write Cycle ... 10 Technical Support ... 21 Switching Waveforms .. 11 Document Number: 002-23965 Rev. *A Page 2 of 21 Document Outline 256-Kbit (32K × 8) nvSRAM Features Functional Description Logic Block Diagram Contents Pinout Pin Definitions Device Operation SRAM Read SRAM Write AutoStore Operation Hardware STORE Operation Hardware RECALL (Power-up) Software STORE Software RECALL Preventing AutoStore Data Protection Maximum Ratings Operating Range DC Electrical Characteristics Data Retention and Endurance Capacitance Thermal Resistance AC Test Loads AC Test Conditions AC Switching Characteristics SRAM Read Cycle SRAM Write Cycle Switching Waveforms AutoStore/Power-up RECALL Switching Waveforms Software Controlled STORE/RECALL Cycle Switching Waveforms Hardware STORE Cycle Switching Waveforms Truth Table For SRAM Operations Ordering Information Ordering Code Definitions for Industrial Temperature Ordering Code Definitions for Military Temperature Package Diagram Acronyms Document Conventions Units of Measure Document History Page Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC® Solutions Cypress Developer Community Technical Support