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IS42S32800G-6BLI Datasheet(PDF) 11 Page - Integrated Silicon Solution, Inc |
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IS42S32800G-6BLI Datasheet(HTML) 11 Page - Integrated Silicon Solution, Inc |
11 / 58 page 11 Integrated Silicon Solution, Inc. - www.issi.com Rev. A 07/18/2012 IS42S32800G, IS45S32800G CKE RELATED COMMAND TRUTH TABLE(1) CKE Current State Operation n-1 n CS RAS CAS WE Address Self-Refresh(S.R.) INVALID,CLK(n-1)wouldexitS.R. H X X X X X X Self-RefreshRecovery(2) L H H X X X X Self-RefreshRecovery(2) L H L H H X X Illegal L H L H L X X Illegal L H L L X X X MaintainS.R. L L X X X X X Self-RefreshRecoveryIdleAftertrc H H H X X X X Idle After trc H H L H H X X Illegal H H L H L X X Illegal H H L L X X X Beginclocksuspendnextcycle(5) H L H X X X X Beginclocksuspendnextcycle(5) H L L H H X X Illegal H L L H L X X Illegal H L L L X X X Exit clock suspend next cycle(2) L H X X X X X Maintainclocksuspend L L X X X X X Power-Down(P.D.) INVALID,CLK(n-1)wouldexitP.D. H X X X X X — EXITP.D.-->Idle(2) L H X X X X X Maintainpowerdownmode L L X X X X X BothBanksIdle RefertooperationsinOperativeCommandTable H H H X X X — RefertooperationsinOperativeCommandTable H H L H X X — RefertooperationsinOperativeCommandTable H H L L H X — Auto-Refresh H H L L L H X RefertooperationsinOperativeCommandTable H H L L L L Op-Code RefertooperationsinOperativeCommandTable H L H X X X — RefertooperationsinOperativeCommandTable H L L H X X — RefertooperationsinOperativeCommandTable H L L L H X — Self-Refresh(3) H L L L L H X RefertooperationsinOperativeCommandTable H L L L L L Op-Code Power-Down(3) L X X X X X X Anystate RefertooperationsinOperativeCommandTable H H X X X X X otherthan Beginclocksuspendnextcycle(4) H L X X X X X listedabove Exitclocksuspendnextcycle L H X X X X X Maintainclocksuspend L L X X X X X Notes: 1.H:Highlevel,L:lowlevel,X:Highorlowlevel(Don’tcare). 2.CKELowtoHightransitionwillre-enableCLKandotherinputsasynchronously.Aminimumsetup time must be satisfied beforeanycommandotherthanEXIT. 3.PowerdownandSelfrefreshcanbeenteredonlyfromthebothbanksidlestate. 4.MustbelegalcommandasdefinedinOperativeCommandTable. 5. Illegal if txsr is not satisfied. |
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