Datasheet

Figure 39. Burst write followed by precharge: WL= (RL-1) =4
CK#
CK
CMD
T0 T1 T4 T5 T6 T7 T9T2 T3
Post CAS#
Write A
NOP NOP NOP NOP NOP NOP NOP
Precharge A
DQS
DQS#
DNA
0
DNA
1
DNA
2
DNA
3
DQ's
>=t
WR
WL= 4
Completion of the Burst Write
Figure 40. Burst read operation with auto precharge:
(RL=4,AL=1, CL=3, BL=8, t
RTP
≦2 clocks)
CK#
CK
CMD
T0 T1 T4 T5 T6 T7 T8T2 T3
Post CAS#
READ A
NOP NOP NOP NOP NOP NOP NOP
Bank A
Activate
DQS
DQS#
RL= 4
DOUT
A
0
DOUT
A
1
DOUT
A
2
DOUT
A
3
DQ's
AL + BL/2 clks
CL = 3
AL = 1
Autoprecharge
>=t
RTP
Second 4-bit prefetch
DOUT
A
4
DOUT
A
5
DOUT
A
6
DOUT
A
7
>= t
RP
t
RTP
Precharge begins hereFirst 4-bit prefetch
AS4C64M16D2A-25BIN
AS4C64M16D2A-25BCN
Confidential
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Rev.1.1 October 2017