W949D6DB Datasheet, PDF (25/60 Pages) Winbond – Standard Self Refresh Mode

W949D6DB / W949D2DB
8. OPERATION
8.1 Deselect
The DESELECT function ( CS = High) prevents new commands from being executed by the LPDDR
SDRAM. The LPDDR SDRAM is effectively deselected. Operations already in progress are not
affected.
8.2 No Operation
The NO OPERATION (NOP) command is used to perform a NOP to a LPDDR SDRAM that is
selected ( CS = Low). This prevents unwanted commands from being registered during idle or wait
states. Operations already in progress are not affected.
8.2.1 NOP Command
CK
CK
CKE
CS
(High)
RAS
CAS
WE
Address
BA0,BA1
= Don't Care
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Publication Release Date: Oct. 08, 2014
Revision: A01-003