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W949D6CB / W949D2CB
512Mb Mobile LPDDR
7.5.1 Read Command
CK
CK
CKE
CS
RAS
CAS
WE
A0-An
A10
BA0,BA1
(High)
CA
Enable AP
AP
Disable AP
BA
= Don't Care
BA=BANK Address CA=Coulmn Address AP=Auto
Precharge
The basic Read timing parameters for DQs are shown in following figure; they apply to all Read operations.
7.5.2 Basic Read Timing Parameters
t CK
t CK
t CH
t CL
CK
CK
t DQSCK
t DQSCK
DQS
tACmax
t RPRE
t DQSQmax
t AC
t RPST
t HZ
DQ
t LZ
DO n
DO n+1
DO n+2
DO n+3
t QH
t QH
DQS
tACmin
t DQSCK
t RPRE
t AC
t DQSCK
t DQSQmax
t RPST
t HZ
DQ
t LZ
DO n
t QH
DO n+1
DO n+2
DO n+3
t QH
1)DO n=Data Out from column n
= Don,t Care
2)All DQ are vaild tAC after the CK edge.
All DQ are valid tDQSQ after the DQS edge, regardless of tAC
Publication Release Date: Sep, 21, 2011
- 28 -
Revision A01-007
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