9 / 33 page
Rev.01
9/33
256Mb SDRAM
After the command execution, self refresh operation
continues while CKE remains low. When CKE goes
high, the memory exits the self refresh mode. During
self refresh mode, refresh interval and refresh operation
are performed internally, so there before is no need for
external control. Before executing self refresh, both
banks must be precharged.
( Figure. 7 Self refresh entry command
)
Self refresh entry command ( /CS, / RAS , /CAS, CKE = Low , /WE = High )
Add
/CS
CLK
/RAS
/CAS
/WE
BA
A10
CKE
This command can stop the current burst operation.
( Figure. 8 Burst stop command in full page mode
)
Burst stop command ( /CS, /WE = Low, /RAS, /CAS = High )
Add
/CS
CLK
/RAS
/CAS
/WE
BA
A10
CKE
‘ H ’
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
