參數(shù)資料
型號: A43E06321G-75F
廠商: AMIC Technology Corporation
英文描述: General Purpose
中文描述: 為512k × 32位× 2銀行低功耗同步DRAM
文件頁數(shù): 17/46頁
文件大小: 1351K
代理商: A43E06321G-75F
A43E06321
PRELIMINARY (July, 2005, Version 0.0)
16
AMIC Technology, Corp.
4. CAS Interrupt (II) : Read Interrupted Write & DQM
* Note : 1. To prevent bus contention, there should be at least one gap between data in and data out.
2. To prevent bus contention, DQM should be issued which makes a least one gap between data in and data out.
RD
WR
D0
D1
D2
D3
RD
WR
D0
D1
D2
D3
WR
RD
Hi-Z
Hi-Z
D0
D1
D2
D3
RD
WR
D0
D1
D2
D3
Q0
Hi-Z
Note 1
RD
WR
D0
D1
D2
D3
RD
WR
D0
D1
D2
D3
WR
RD
Hi-Z
D0
D1
D2
D3
RD
WR
D0
D1
D2
Q0
Note 2
D1
D2
D3
RD
WR
WR
(1) CL=2, BL=4
CLK
i) CMD
DQM
DQ
ii) CMD
DQM
DQ
iii) CMD
DQM
DQ
iv) CMD
DQM
DQ
(2) CL=3, BL=4
CLK
i) CMD
DQM
DQ
ii) CMD
DQM
DQ
iii) CMD
DQM
DQ
iv) CMD
DQM
DQ
v) CMD
DQM
DQ
D3
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