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IS46LR32640A Datasheet(PDF) 5 Page - Integrated Silicon Solution, Inc |
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IS46LR32640A Datasheet(HTML) 5 Page - Integrated Silicon Solution, Inc |
5 / 43 page 5 Rev. A | Feb 2014 www.issi.com - dram@issi.com IS43/46LR32640A Figure3 : Simplified State Diagram Power On Precharge All Banks MRS EMRS Active Power Down Deep Power Down Idle All Banks Precharged Auto Refresh Row Active Precharge PREALL WRITE WRITE A READ READ A Burst Stop Precharge Power Down DPDS Power Applied DPDSX MRS REFA ACT CKEH CKEL REFS REFSX Self Refresh PRE CKEL CKEH WRITE READ BST PRE PRE PRE WRITE A WRITE READ READ A READ WRITE A READ A Automatic sequence ACT = Active BST = Burst CKEL = Enter Power- Down CKEH = Exit Power-Down DPDS = Enter Deep Power-Down DPDSX = Exit Deep Power- Down EMRS = Ext. Mode Reg. Set MRS = Mode Register Set PRE = Precharge PREALL= Precharge All Banks REFA = Auto Refresh REFS = Enter Self Refresh REFSX = Exit Self Refresh READ = Read w/o Auto Precharge READ A = Read with Auto Precharge WRITE = Write w/o Auto Precharge WRITE A = Write with Auto Precharge |
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