MSM54V32128 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Fabricante

MSM54V32128

131,072-Word x 32-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO

Oki Electric Industry 

¡ Semiconductor

MSM54V32126/8

CASn-DQ FUNCTION TABLE

CAS1

H

H

H

H

H

H

H

H

L

L

L

L

L

L

L

L

CAS2

H

H

H

H

L

L

L

L

H

H

H

H

L

L

L

L

CAS3

H

H

L

L

H

H

L

L

H

H

L

L

H

H

L

L

CAS4

H

L

H

L

H

L

H

L

H

L

H

L

H

L

H

L

DQ0-7

*

*

*

*

*

*

*

*

Enable

Enable

Enable

Enable

Enable

Enable

Enable

Enable

DQ8-15

*

*

*

*

Enable

Enable

Enable

Enable

*

*

*

*

Enable

Enable

Enable

Enable

DQ16-23

*

*

Enable

Enable

*

*

Enable

Enable

*

*

Enable

Enable

*

*

Enable

Enable

DQ24-31

*

Enable

*

Enable

*

Enable

*

Enable

*

Enable

*

Enable

*

Enable

*

Enable

Read cycle

Write cycle

Enable

Valid Data-out

Write Data

*

High-Z

Don't Care

WRITE CYCLE FUNCTION TABLE

CODE

RWM (*1)

RW

RAS falling edge

A

B

WB / WE

DQ

L

Write mask

H (*2)

Don't care

CAS or WB / WE falling edge

C

Function

DQ

Write data

Write per bit

Write data

Normal write

Write mask : 'L' = Mask, 'H' = No mask

(*1): MSM54V32128 only.

(*2): In case of MSM54V32126, don't care.

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