A43L0616AV datasheet(19/45 Pages) AMICC

19 / 45 page

A43L0616A

(May, 2001, Version 1.0)

AMIC Technology, Inc.

5. Write Interrupted by Precharge & 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

7. Auto Precharge

* 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.

PRE

Note 2

Note 1

Masked by DQM

CLK

CMD

DQM

PRE

CLK

CMD

1) Normal Write (BL=4)

tRDL

PRE

CLK

CMD

DQ(CL2)

2) Read (BL=4)

DQ(CL3)

CLK

CMD

1) Normal Write (BL=4)

Note 1

CLK

CMD

DQ(CL2)

2) Read (BL=4)

DQ(CL3)

Auto Precharge Starts

Note 1

Auto Precharge Starts

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