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A43L8316A Ver la hoja de datos (PDF) - AMIC Technology

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A43L8316A 128K X 16 Bit X 2 Banks Synchronous DRAM AMICC
AMIC Technology AMICC
A43L8316A Datasheet PDF : 45 Pages
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5. Write Interrupted by Precharge & DQM
A43L8316A
CLK
CMD
DQM
DQ
WR
Note 2
PRE
Note 1
D0 D1 D2 D3
Masked by DQM
Note : 1. To inhibit invalid write, DQM should be issued.
2. This precharge command and burst write command should be of the same bank, otherwise it is not precharge
interrupt but only another bank precharge of dual banks operation.
6. Precharge
1) Normal Write (BL=4)
CLK
CMD
WR
DQ
D0
D1
2) Read (BL=4)
CLK
CMD
RD
DQ(CL2)
DQ(CL3)
PRE
D2
D3
tRDL
PRE
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
7. Auto Precharge
1) Normal Write (BL=4)
CLK
CMD
WR
DQ
D0 D1
2) Read (BL=4)
CLK
CMD
RD
DQ(CL2)
D2 D3
Note 1
Auto Precharge Starts
Q0 Q1 Q2 Q3
DQ(CL3)
Q0 Q1 Q2 Q3
Note 1
Auto Precharge Starts
* Note : 1. The row active command of the precharge bank can be issued after tRP from this point.
The new read/write command of other active bank can be issued from this point.
At burst read/write with auto precharge, CAS interrupt of the same/another bank is illegal.
(September, 2003, Version 1.0)
18
AMIC Technology, Corp.
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