参数资料
型号: W9425G6JB-5
厂商: WINBOND ELECTRONICS CORP
元件分类: DRAM
英文描述: DDR DRAM, PBGA60
封装: 8 X 13 MM, ROHS COMPLIANT, TFBGA-60
文件页数: 32/50页
文件大小: 852K
代理商: W9425G6JB-5
W9425G6JB
Publication Release Date: Oct. 08, 2010
- 38 -
Revision A01
11.8 Auto-precharge Timing (Read Cycle, CL = 2)
1) tRCD (READA)
≥ tRAS (min) – (BL/2) × tCK
AP
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
ACT
READA
ACT
Q0
Q1
Q2
Q3
ACT
READA
ACT
Q0
Q1
ACT
AP
READA
ACT
tRP
tRAS
CMD
DQS
DQ
CMD
DQS
DQ
CMD
DQS
DQ
BL=2
BL=4
BL=8
CLK
AP
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.
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