A43L0616BV-6F Ver la hoja de datos (PDF) - AMIC Technology

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A43L0616BV-6F

512K X 16 Bit X 2 Banks Synchronous DRAM

AMIC Technology 

5. Write Interrupted by Precharge & DQM

A43L0616B

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

DQ(CL2)

RD

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

DQ

WR

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.

PRELIMINARY (May, 2005, Version 0.0)

18

AMIC Technology, Corp.

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