MB81N643289 Datasheet, PDF(49/64 Page) Fujitsu Component Limited. – 8 x 256K x 32 BIT DOUBLE DATA RATE FCRAMTM

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MB81N643289 Datasheet, PDF (49/64 Pages) Fujitsu Component Limited. – 8 x 256K x 32 BIT DOUBLE DATA RATE FCRAMTM

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MB81N643289-50/-60 Preliminary (AE1E)

TIMING DIAGRAM â 17 : SELF-REFRESH

(Timing assumes CL=2)

CLK

tPDE

lLOCK

Command

NOP SELF NOP Donât Care

SELFX

NOP

Any

Hi-Z

TIMING DIAGRAM â 18 : POWER DOWN

(Timing assumes any CL)

CLK

Command

NOP PDEN

NOP

tPDE

lPDEX

PDEX NOP

Any

NOP

Hi-Z

Note: lPDEX : Latency of Power Down Exit to next command input delay.

tREF must be satisfied for burst refresh and tAREF must be satisfied for distributed

refresh.

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