參數(shù)資料
型號(hào): MB81N643289
廠商: Fujitsu Limited
英文描述: DRILL BIT HIGH SPEED STEEL .021,1
中文描述: 8 × 256K × 32位的雙倍數(shù)據(jù)速率FCRAMTM
文件頁數(shù): 47/64頁
文件大小: 1732K
代理商: MB81N643289
47
MB81N643289-50/-60
Preliminary (AE1E)
CLK
DQ
DQS
ACTV
Command
CLK
NOP
NOP
Q1 Q2 Q3 Q4
l
RWL
l
RCD
RD
NOP
WR
NOP
RD
l
WRL
D1 D2 D3 D4
TIMING DIAGRAM – 13 : PAGE MODE READ / WRITE
(Timing assumes CL=3, BL=4, Same Bank Access)
Notes: 1.
l
RWL
: Letency of Read to Write command.
l
WRL
: Latency of Read to Write command in same bank.
2.
Hi-Z
Hi-Z
WL
CL
TIMING DIAGRAM – 14 : PAGE MODE READ / WRITE
(Timing assumes CL=3, BL=4, Multiple Bank Access)
CLK
DQ
DQS
ACTVa
Command
CLK
NOP
NOP
Q1 Q2 Q3 Q4
l
RWL
l
RCD
RDa
NOP
WRb
PCa
RDa
l
WRD
D1 D2 D3 D4
ACTVb
NOP
PCb
Q1 Q2 Q3 Q4
Hi-Z
Hi-Z
Notes: 1.
l
WRD
: Latency of Write to Read command in different bank.
Data Strobe Input must be applied after or before output of DQS is in High-Z.
2.
CL (Bank a)
WL (Bank b)
CL (Bank a)
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