Figure 121: Transition Period for Short CKE LOW Cycles with Entry and Exit Period Overlapping
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
Ta0
Ta1
Ta2
Ta3
Ta4
CK#
CK
Command
CKE
REF
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
PDE transition period
t
ANPD
t
RFC (MIN)
PDX transition period
t
t
ANPD
XPDLL
Short CKE low transition period (R
change asynchronous or synchronous)
TT
Indicates break
in time scale
Transitioning
Don’t Care
1. AL = 0, WL = 5, tANPD = 4.
Note:
Figure 122: Transition Period for Short CKE HIGH Cycles with Entry and Exit Period Overlapping
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
Ta0
Ta1
Ta2
Ta3
Ta4
CK#
CK
Command
CKE
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
t
t
ANPD
XPDLL
t
ANPD
Short CKE HIGH transition period (R change asynchronous or synchonous)
TT
Indicates break
in time scale
Transitioning
Don’t Care
1. AL = 0, WL = 5, tANPD = 4.
Note: