HYB39S256400 Datasheet, PDF (42/56 Pages) Siemens Semiconductor Group – 256 MBit Synchronous DRAM

14. Self Refresh (Entry and Exit)
HYB 39S256400/800/160T
256 MBit Synchronous DRAM
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CLK
CKE
t _CKS
CS
RAS
CAS
WE
BS
AP
Addr.
DQM
Hi-Z
DQ
t _CKS
t _SREX
t _RC
All Banks
must be idle
Self Refresh
Entry
Begin Self Refresh
Exit Command
Self Refresh Exit
Command issued
Self Refresh
Exit
Any
Command
SPT03919
Semiconductor Group
42
1998-10-01