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AS4C64M8D2 데이터시트(PDF) 47 Page - Alliance Semiconductor Corporation

부품명 AS4C64M8D2
상세설명  Fully synchronous operation
PDF  59 Pages
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제조업체  ALSC [Alliance Semiconductor Corporation]
홈페이지  https://www.alliancememory.com
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AS4C64M8D2 데이터시트(HTML) 47 Page - Alliance Semiconductor Corporation

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AS4C64M8D2
Confidential
47
Rev. 1.0
Feb. /2014
Figure 34. Burst read operation followed by precharge:
(RL=4, AL=0, CL=4, BL=8, tRTP>2 clocks)
CK#
CK
CMD
T0
T1
T4
T5
T6
T7
T8
T2
T3
Post CAS#
READ A
NOP
NOP
NOP
NOP
Precharge A
NOP
NOP
Bank A
Activate
DQS
DQS#
RL= 4
DOUT
A0
DOUT
A1
DOUT
A2
DOUT
A3
DQ's
AL + 2 + max( tRTP, 2 tCK)*
CL = 4
AL = 0
First 4-bit prefetch
>=tRTP
Second 4-bit prefetch
DOUT
A4
DOUT
A5
DOUT
A6
DOUT
A7
>=tRP
>=tRAS
*: rounded to next integer.
Figure 35. Burst write operation followed by precharge: WL= (RL-1) =3
CK#
CK
CMD
T0
T1
T4
T5
T6
T7
T8
T2
T3
Post CAS#
Write A
NOP
NOP
NOP
NOP
NOP
NOP
NOP
Precharge A
DQS
DQS#
DNA0 DNA1 DNA2 DNA3
DQ's
>=tWR
WL= 3
Completion of the Burst Write



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