W9412G6JH
11.9 Auto-precharge Timing (Read cycle, CL = 2), continued
2) tRCD/RAP(min) tRCD (READA) tRAS (min) – (BL/2) tCK
tRAS
tRP
CLK
CLK
BL=2
ACT
READA
ACT
AP
CMD
tRAP
tRCD
DQS
DQ
Q0 Q1
BL=4
ACT
READA
AP
ACT
CMD
DQS
DQ
tRAP
tRCD
Q0 Q1 Q2 Q3
BL=8
ACT
READA
AP
ACT
CMD
tRAP
tRCD
DQS
DQ
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
Notes: CL2 shown; same command operation timing with CL = 2.5, CL=3.
In this case, the internal precharge operation does not begin until after tRAS(min) has command.
AP
Represents the start of internal precharging.
The Read with Auto-precharge command cannot be interrupted by any other command.
Publication Release Date: Nov. 29, 2011
Revision A03
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