Cypress Perform STK12C68 User Manual

STK12C6864 Kbit (8K x 8) AutoStore nvSRAMCypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600Document Number

STK12C68Document Number: 001-51027 Rev. ** Page 10 of 20SRAM Write CycleParameterDescription25 ns 35 ns 45 ns UnitMin Max Min Max Min MaxCypressPara

STK12C68Document Number: 001-51027 Rev. ** Page 11 of 20AutoStore or Power Up RECALLParameter Alt DescriptionSTK12C68UnitMin MaxtHRECALL [13]tRESTORE

STK12C68Document Number: 001-51027 Rev. ** Page 12 of 20Software Controlled STORE/RECALL CycleThe software controlled STORE/RECALL cycle follows. [18]

STK12C68Document Number: 001-51027 Rev. ** Page 13 of 20Hardware STORE CycleParameter Alt DescriptionSTK12C68UnitMin MaxtSTORE [9, 14]tHLHZ STORE Cycl

STK12C68Document Number: 001-51027 Rev. ** Page 14 of 20Part Numbering nomenclaturePackaging Option:TR = Tape and ReelBlank = TubeSpeed:25 - 25 ns35 -

STK12C68Document Number: 001-51027 Rev. ** Page 15 of 2045 STK12C68-SF45TR 001-85058 28-pin SOIC (330 mil) CommercialSTK12C68-SF45 001-85058 28-pin SO

STK12C68Document Number: 001-51027 Rev. ** Page 16 of 20Package DiagramsFigure 14. 28-Pin (330 Mil) SOIC (51-85058)Figure 15. 28-Pin (300 Mil) PDIP

STK12C68Document Number: 001-51027 Rev. ** Page 17 of 20Figure 16. 28-Pin (600 Mil) PDIP (51-85017)Package Diagrams (continued)51-85017 *B[+] Feedbac

STK12C68Document Number: 001-51027 Rev. ** Page 18 of 20Figure 17. 28-Pin (300 Mil) Side Braze DIL (001-51695)Package Diagrams (continued)001-51695 *

STK12C68Document Number: 001-51027 Rev. ** Page 19 of 20Figure 18. 28-Pad (350 Mil) LCC (001-51696)Package Diagrams (continued)1. ALL DIMENSION ARE I

STK12C68Document Number: 001-51027 Rev. ** Page 2 of 20Pin ConfigurationsPin DefinitionsPin Name Alt IO Type DescriptionA0–A12Input Address Inputs. Us

Document Number: 001-51027 Rev. ** Revised January 30, 2009 Page 20 of 20AutoStore and QuantumTrap are registered trademarks of Cypress Semiconductor

STK12C68Document Number: 001-51027 Rev. ** Page 3 of 20Device OperationThe STK12C68 nvSRAM is made up of two functional compo-nents paired in the same

STK12C68Document Number: 001-51027 Rev. ** Page 4 of 20Figure 3. AutoStore Inhibit ModeIf the power supply drops faster than 20 us/volt before Vccrea

STK12C68Document Number: 001-51027 Rev. ** Page 5 of 203. Read address 0x0AAA, Valid READ4. Read address 0x1FFF, Valid READ5. Read address 0x10F0, Val

STK12C68Document Number: 001-51027 Rev. ** Page 6 of 20Best PracticesnvSRAM products have been used effectively for over 15 years.While ease-of-use is

STK12C68Document Number: 001-51027 Rev. ** Page 7 of 20Maximum RatingsExceeding maximum ratings may shorten the useful life of thedevice. These user g

STK12C68Document Number: 001-51027 Rev. ** Page 8 of 20Data Retention and EnduranceParameter Description Min UnitDATARData Retention 100 YearsNVCNonvo

STK12C68Document Number: 001-51027 Rev. ** Page 9 of 20AC Switching Characteristics SRAM Read CycleParameterDescription25 ns 35 ns 45 ns UnitMin Max