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H5MS1262EFP-K3M Datasheet(PDF) 13 Page - Hynix Semiconductor |
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H5MS1262EFP-K3M Datasheet(HTML) 13 Page - Hynix Semiconductor |
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13 / 62 page  Rev 1.1 / July. 2009 13 Mobile DDR SDRAM 128Mbit (8M x 16bit) H5MS1262EFP Series COMMAND TRUTH TABLE DM TRUTH TABLE Note: 1. All states and sequences not shown are illegal or reserved. 2. DESLECT and NOP are functionally interchangeable. 3. Autoprecharge is non-persistent. A10 High enables Autoprecharge, while A10 Low disables Autoprecharge 4. Burst Terminate applies to only Read bursts with auto precharge disabled. This command is undefined and should not be used for Read with Autoprecharge enabled, and for Write bursts. 5. This command is BURST TERMINATE if CKE is High and DEEP POWER DOWN entry if CKE is Low. 6. If A10 is low, bank address determines which bank is to be precharged. If A10 is high, all banks are precharged and BA0-BA1 are don 't care. 7. This command is AUTO REFRESH if CKE is High, and SELF REFRESH if CKE is low. 8. All address inputs and I/O are ''don't care'' except for CKE. Internal refresh counters control Bank and Row addressing. 9. All banks must be precharged before issuing an AUTO-REFRESH or SELF REFRESH command. 10. BA0 and BA1 value select among MRS, EMRS and SRR. 11. Used to mask write data, provided coincident with the corresponding data. 12. CKE is HIGH for all commands shown except SELF REFRESH and DEEP POWER-DOWN. Function CS RAS CAS WE BA A10/AP ADDR Note DESELECT (NOP) H X X X X X X 2 NO OPERATION (NOP) L H H H X X X 2 ACTIVE (Select Bank and activate Row) L L H H V Row Row READ (Select bank and column and start read burst) L H L H V L Col READ with AP (Read Burst with Autoprecharge) L H L H V H Col 3 WRITE (Select bank and column and start write burst) L H L L V L Col WRITE with AP (Write Burst with Autoprecharge) L H L L V H Col 3 BURST TERMINATE or enter DEEP POWER DOWN L H H L X X X 4, 5 PRECHARGE (Deactivate Row in selected bank) L L H L V L X 6 PRECHARGE ALL (Deactivate rows in all Banks) L L H L X H X 6 AUTO REFRESH or enter SELF REFRESH L L L H X X X 7,8,9 MODE REGISTER SET L L L L V Op code 10 Function DM DQ Note Write Enable L Valid 11 Write Inhibit H X 11 |
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