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| HY5FS123235AFCP Datasheet, PDF (30/74 Pages) Hynix Semiconductor – 512M (16Mx32) GDDR4 SDRAM | |||
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HY5FS123235AFCP
T0
T1
T2
T3
T4
CK#
CK
CKE#
CMD NOP
tIS
tRP
NOP
Auto
Refresh
Enter
Self Refresh
Mode
NOP
tCKE
NOP
Tm Tm+1 Tm+2
Tn
tIS
tXSNR
tXSRD
NOP
Exit
Self Refresh
Mode
NOP
Non
READ
READ
Figure 22: Self Refresh Entry and Exit
Note:
1. Device must be in the âAll banks idleâ state prior to entering Self Refresh mode.
2. Minimum CKE# pulse width must satisfy tCKE.
3. After issuing Self Refresh command, two more NOPs should be issued.
Rev. 1.2 /June. 2008
30
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