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AS4C64M8D2 Datasheet(PDF) 54 Page - Alliance Semiconductor Corporation

Part # AS4C64M8D2
Description  Fully synchronous operation
PDF  59 Pages
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

AS4C64M8D2 Datasheet(HTML) 54 Page - Alliance Semiconductor Corporation

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AS4C64M8D2
Confidential
54
Rev. 1.0
Feb. /2014
Figure 49. Read with autoprecharge to power-down entry
CK#
CMD
BL=4
T0
T2
Tx
Tx+1
Tx+2
Tx+3
Tx+4
Tx+5
Tx+6
Tx+7
T1
Tx+8
Tx+9
RDA
Q
AL+CL
DQS
CKE
CK
DQS#
CKE should be kept HIGH until the end of burst operation
tIS
Q
Q
Q
DQ
CK#
CMD
BL=8
T0
T2
Tx
Tx+1
Tx+2
Tx+3
Tx+4
Tx+5
Tx+6
Tx+7
T1
Tx+8
Tx+9
RD
Q
AL+CL
DQS
CKE
CK
DQS#
CKE should be kept HIGH until the end of burst operation
tIS
Q
Q
Q
DQ
Q
Q
Q
Q
PRE
AL+BL/2 with tRTP = 7.5ns
& tRAS min satisfied
PRE
Start internal precharge
AL+BL/2 with tRTP = 7.5ns
& tRAS min satisfied
Figure 50. Write to power-down entry
CK#
CMD
BL=4
T0
Tm
Tm+1
Tm+2
Tm+3
Tx
Tx+1
Tx+2
Ty
Ty+1
T1
Ty+2
Ty+3
WR
Q
WL
DQS
CKE
CK
DQS#
tIS
Q
Q
Q
DQ
CK#
CMD
BL=8
T0
Tm
Tm+1
Tm+2
Tm+3
Tm+4
Tm+5
Tx
Tx+1
Tx+2
T1
Tx+3
Tx+4
WR
Q
WL
DQS
CKE
CK
DQS#
Q
Q
Q
DQ
Q
Q
Q
Q
tWTR
tIS
tWTR



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