Datasheet

Figure 41. Burst read operation with auto precharge:
(RL=4, AL=1, CL=3, BL=4, 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
Bank A
Activate
NOP
DQS
DQS#
DoutA
0
DoutA
1
DoutA
2
DoutA
3
DQ's
CL= 3
Autoprecharge
>= AL+t
RTP
+t
RP
AL= 1
RL= 4
t
RTP
t
RP
First 4-bit prefetch Precharge begins here
Figure 42. Burst read operation with auto precharge followed by activation to the same
bank (t
RC
Limit): RL=5(AL=2, CL=3, internal t
RCD
=3, BL=4, 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#
DoutA
0
DoutA
1
DoutA
2
DoutA
3
DQ's
CL= 3
>=t
RAS
(min)
AL= 2
RL= 5
>= t
RC
CL=3
A10= 1
Auto Precharge Begins
>=t
RP
AS4C64M16D2A-25BIN
AS4C64M16D2A-25BCN
Confidential
- 53 of 62 -
Rev.1.1 October 2017