MH8V644AWZJ-6 查看數據表（PDF） - MITSUBISHI ELECTRIC

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MH8V644AWZJ-6

FAST PAGE MODE 536870912 - BIT ( 8388608 - WORD BY 64 - BIT ) DYNAMIC RAM

MITSUBISHI ELECTRIC  

Preliminary Spec.

Specifications subject to

change without notice.

MITSUBISHI LSIs

MH8V644AWZJ -5, -6

FAST PAGE MODE 536870912 - BIT ( 8388608 - WORD BY 64 - BIT ) DYNAMIC RAM

FUNCTION

The MH8V644AWZJ provide, in addition to normal

read, write, and read-modify-write operations,

a number of other functions, e.g., Fast page mode, /RAS-

only refresh, and delayed-write. The input conditions for

each are shown in Table 1.

Table 1 Input conditions for each mode

Operation

Read

Write (Early write)

Write (Delayed write)

Read-modify-write

/CAS before /RAS refresh

Standby

/RAS

ACT

ACT

ACT

ACT

ACT

NAC

/CAS

ACT

ACT

ACT

ACT

ACT

DNC

Inputs

/W

NAC

ACT

ACT

ACT

NAC

DNC

/OE

ACT

DNC

DNC

ACT

DNC

DNC

aRddorwess aCdodluremsns

APD APD

APD APD

APD APD

APD APD

DNC DNC

DNC DNC

Input/Output

Refresh

Input Output

OPN VLD YES

VLD OPN YES

VLD IVD YES

VLD VLD YES

DNC OPN YES

DNC OPN NO

Remark

Fast page

mode

identical

Note : ACT : active, NAC : nonactive, DNC : don' t care, VLD : valid, IVD : Invalid, APD : applied, OPN : open

MIT-DS-0120-0.0

MITSUBISHI

ELECTRIC

( 5 / 20 )

25/Feb./1997

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