M66281FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M66281FP

5120 x 8-BIT x 2 LINE MEMORY

MITSUBISHI ELECTRIC  

MITSUBISHI <DIGITAL ASSP>

M66281FP

5120 x 8-BIT x 2 LINE MEMORY

• Notes on reading of written data in read disable

When writing operation is performed at n cycle and n+1 cycle on the writing side in the read disable period after n-1 cycle on

the reading side, output at n cycle and n+1 cycle after read enable is invalid. For output at n+2 cycle and after, however, data

written in the read disable period is to be output.

WCK

Dn

RCK

REB

Q0n

(Q1n)

n-1 cycle

n cycle

n+1 cycle n+2 cycle n+3 cycle n+4 cycle n+5 cycle n+6 cycle n+7 cycle

tDS tDH

(n-1)

(n)

(n+1)

(n+2)

(n+3)

(n+4)

(n+5)

(n+6)

(n+7)

n-1 cycle

Disable cycle

n cycle

n+1 cycle n+2 cycle

tAC

tODIS

(n-1)

HIGH-Z

tOEN

invalid

invalid

(n+2)

WEB = "L"

WRESB = "H"

RRESB = "H"

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