W9412G6JH
11.8 Auto-precharge Timing (Read Cycle, CL = 2)
1) tRCD (READA) tRAS (min) – (BL/2) tCK
tRAS
tRP
CLK
CLK
BL=2
ACT
READA
ACT
AP
CMD
DQS
DQ
Q0 Q1
BL=4
ACT
READA
AP
ACT
CMD
DQS
DQ
Q0 Q1 Q2 Q3
BL=8
READA
ACT
AP
ACT
CMD
DQS
DQ
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
Notes: CL=2 shown; same command operation timing with CL = 2,5 and CL=3
In this case, the internal precharge operation begin after BL/2 cycle from READA 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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