EM638165
EtronTech
Figure 27. Power Down Mode and Clock Suspension
(Burst Length=4, CAS# Latency=2)
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
tIH tIS
tPDE
Valid
CS#
RAS#
CAS#
WE#
BA0,1
A10
RAx
A0-A9,
A11
RAx
CAx
DQM
DQ
tHZ
Ax3
Hi-Z
Ax0
Ax1
Ax2
ACTIVE
STANDBY
PRECHARGE
STANDBY
Precharge
Command
Bank A
Activate
Command
Bank A
Power Down
Mode Exit
Read
Command
Bank A
Clock Suspension
Start
Clock Suspension
End
Any
Command
Power Down
Mode Exit
Power Down
Mode Entry
Power Down
Mode Entry
Don’t Care
Rev. 5.2
29
Rev. 5.2
Dec. /2013