Cypress Semiconductor Perform nvSRAM Manual do Utilizador

STK14D8832Kx8 AutoStore nvSRAMCypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600Document Number: 001-5203

STK14D88Document Number: 001-52037 Rev. *A Page 10 of 18Hardware STORE CycleNO.SymbolsParameterSTK14D88Unit NotesStandard Alternate Min Max31 tDELAYtH

STK14D88Document Number: 001-52037 Rev. *A Page 11 of 18Mode SelectionE W G A14–A0Mode IO Power NotesH X X X Not Selected Output High Z StandbyL H L X

STK14D88Document Number: 001-52037 Rev. *A Page 12 of 18nvSRAM OperationnvSRAMThe STK14D88 nvSRAM is made up of two functional compo-nents paired in t

STK14D88Document Number: 001-52037 Rev. *A Page 13 of 18To initiate the software STORE cycle, the following READsequence must be performed:1. Read Add

STK14D88Document Number: 001-52037 Rev. *A Page 14 of 18Figure 13. Current versus Cycle TimeNoise ConsiderationsThe STK14D88 is a high speed memory a

STK14D88Document Number: 001-52037 Rev. *A Page 15 of 18Ordering CodesThese parts are not recommended for new designs.Part Numbering Nomenclature Pack

STK14D88Document Number: 001-52037 Rev. *A Page 16 of 18Package DiagramsFigure 14. 32-Pin (300 Mil) SOIC (51-85127)PIN 1 IDSEATING PLANE11617 32DIMEN

STK14D88Document Number: 001-52037 Rev. *A Page 17 of 18Figure 15. 48-Pin (300 Mil) SSOP (51-85061)Package Diagrams (continued)51-85061-*C[+] Feedbac

Document Number: 001-52037 Rev. *A Revised December 01, 2009 Page 18 of 18All products and company names mentioned in this document may be the tradema

STK14D88Document Number: 001-52037 Rev. *A Page 2 of 18ContentsFeatures...

STK14D88Document Number: 001-52037 Rev. *A Page 3 of 18 Pin ConfigurationsFigure 1. Pin Diagram 48-Pin SSOP/32-SOICPin DescriptionsPin Name I/O Des

STK14D88Document Number: 001-52037 Rev. *A Page 4 of 18Absolute Maximum RatingsVoltage on Input Relative to Ground...–0.5V to 4.1VVoltag

STK14D88Document Number: 001-52037 Rev. *A Page 5 of 18TAOperating Temperature 0 70 -40 85 °CVCCOperating Voltage 2.7 3.6 2.7 3.6 V 3.3V +20%, -10%VCA

STK14D88Document Number: 001-52037 Rev. *A Page 6 of 18 Figure 5. SRAM READ Cycle 2: E Controlled [4, 7] SRAM READ Cycles #1 and #2NO.SymbolsParamete

STK14D88Document Number: 001-52037 Rev. *A Page 7 of 18SRAM WRITE Cycle #1 and #2NO.SymbolsParameterSTK14D88-25 STK14D88-35 STK14D88-45 UnitMin Max

STK14D88Document Number: 001-52037 Rev. *A Page 8 of 18AutoStore/POWER UP RECALLNo. Symbols Alt. ParameterSTK14D88Unit NotesMin Max22 tRECALLPower up

STK14D88Document Number: 001-52037 Rev. *A Page 9 of 18Software-Controlled STORE/RECALL Cycle[13, 14]No.SymbolsParameterSTK14D88-25 STK14D88-35 STK1