Cypress Semiconductor Perform STK12C68 Manual do Utilizador

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

STK12C68Document Number: 001-51027 Rev. *G Page 10 of 22AC Switching Characteristics SRAM Read CycleParameterDescription25 ns 35 ns 45 ns UnitMin M

STK12C68Document Number: 001-51027 Rev. *G Page 11 of 22SRAM Write CycleParameterDescription25 ns 35 ns 45 ns UnitMin Max Min Max Min MaxCypressPar

STK12C68Document Number: 001-51027 Rev. *G Page 12 of 22AutoStore or Power-up RECALLParameter Alt DescriptionSTK12C68UnitMin MaxtHRECALL [13]tRESTORE

STK12C68Document Number: 001-51027 Rev. *G Page 13 of 22Software Controlled STORE/RECALL CycleThe software controlled STORE/RECALL cycle follows. [18

STK12C68Document Number: 001-51027 Rev. *G Page 14 of 22Hardware STORE CycleParameter Alt DescriptionSTK12C68UnitMin MaxtSTORE [9, 14]tHLHZ STORE Cyc

STK12C68Document Number: 001-51027 Rev. *G Page 15 of 22Part Numbering NomenclaturePackaging Option:TR = Tape and ReelBlank = TubeSpeed:25 - 25 ns35

STK12C68Document Number: 001-51027 Rev. *G Page 16 of 22Package DiagramsFigure 14. 28-Pin (330 Mil) SOIC (51-85058)51-85058 *C

STK12C68Document Number: 001-51027 Rev. *G Page 17 of 22Figure 15. 28-Pin (300 Mil) PDIP (51-85014)Package Diagrams (continued)51-85014 *G

STK12C68Document Number: 001-51027 Rev. *G Page 18 of 22Figure 16. 28-Pin (600 Mil) PDIP (51-85017)Package Diagrams (continued)51-85017 *E

STK12C68Document Number: 001-51027 Rev. *G Page 19 of 22Figure 17. 28-Pin (300 Mil) Side Braze DIL (001-51695)Package Diagrams (continued)001-51695

STK12C68Document Number: 001-51027 Rev. *G Page 2 of 22ContentsPin Configurations ... 3Pin De

STK12C68Document Number: 001-51027 Rev. *G Page 20 of 22Figure 18. 28-Pad (350 Mil) LCC (001-51696)Package Diagrams (continued)001-51696 *B

STK12C68Document Number: 001-51027 Rev. *G Page 21 of 22Document History PageDocument Title: STK12C68 64 Kbit (8 K x 8) AutoStore nvSRAMDocument Numb

Document Number: 001-51027 Rev. *G Revised March 21, 2014 Page 22 of 22All products and company names mentioned in this document may be the trademark

STK12C68Document Number: 001-51027 Rev. *G Page 3 of 22 Pin ConfigurationsPin DefinitionsPin Name Alt I/O Type DescriptionA0–A12Input Address Inputs

STK12C68Document Number: 001-51027 Rev. *G Page 4 of 22Device OperationThe STK12C68 nvSRAM is made up of two functionalcomponents paired in the same

STK12C68Document Number: 001-51027 Rev. *G Page 5 of 22Figure 3. AutoStore Inhibit ModeIf the power supply drops faster than 20 us/volt before Vccre

STK12C68Document Number: 001-51027 Rev. *G Page 6 of 22Software RECALLData is transferred from the nonvolatile memory to the SRAM bya software addres

STK12C68Document Number: 001-51027 Rev. *G Page 7 of 22Best PracticesnvSRAM products have been used effectively for over 15 years.While ease-of-use i

STK12C68Document Number: 001-51027 Rev. *G Page 8 of 22Maximum RatingsExceeding maximum ratings may shorten the useful life of the device. These user

STK12C68Document Number: 001-51027 Rev. *G Page 9 of 22Data Retention and EnduranceParameter Description Min UnitDATARData retention 100 YearsNVCNonv