AS4C32M16D2A-25BAN Datasheet, PDF (58/61 Pages) Alliance Semiconductor Corporation – Fully synchronous operation

AS4C32M16D2A-25BAN
Figure 41. Write with autoprecharge to power-down entry
T0
CK#
CK
CMD
CKE
DQ
DQS
DQS#
T1
Tm
Tm+1 Tm+2 Tm+3
Tx
Tx+1 Tx+2
Tx+3 Tx+4 Tx+5 Tx+6
WRA
BL=4
WL
QQQQ
PRE
tIS
WR*1
T0
CK#
CK
CMD
CKE
DQ
DQS
DQS#
T1
Tm
Tm+1 Tm+2 Tm+3 Tm+4 Tm+5
Tx
Tx+1 Tx+2 Tx+3 Tx+4
WRA
BL=8
WL
QQQQQQQQ
PRE
Start internal Precharge
tIS
WR*1
*1: WR is programmed through MRS
Figure 42. Refresh command to power-down entry
T0
T1
T2
T3
T4
T5
T6
T7
CK#
CK
CMD
CKE
REF
CKE can go to LOW one clock after an Auto-refresh command
t_IS
T8
T9
T10
T11
Figure 43. Active command to power-down entry
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
CMD
CKE
ACT
CKE can go to LOW one clock after an Active command
t_IS
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Rev.1.4
58
Jun./2014