M2V56S20AKT-5 View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M2V56S20AKT-5

256M Synchronous DRAM

MITSUBISHI ELECTRIC  

SDRAM (Rev.1.31)

Single Data Rate

Apr. '02

MITSUBISHI LSIs

M2V56S20/ 30/ 40 ATP

M2V56S20/ 30/ 40 AKT

256M Synchronous DRAM

COMMAND TRUTH TABLE

COMMAND

MNEMONIC CKE CKE /CS /RAS /CAS /WE BA0,1 A10 A0-9, note

n-1 n

/AP 11-12

Deselect

DESEL

H

X

H

X

X

X

X

X

X

No Operation

NOP

HX

L

H

HH

X

X

X

Row Address Entry &

Bank Activate

ACT

HX

L

L

HH

V

V

V

Single Bank Precharge

PRE

HX

L

L

HL

V

L

X

Precharge All Banks

PREA

HX

L

L

HL

XH

X

Column Address Entry

& Write

WRITE

HX

L

H

L

L

V

L

V

Column Address Entry

& Write with

WRITEA

H

X

L

H

L

L

V

H

V

Auto-Precharge

Column Address Entry

& Read

READ

HX

L

H

L

H

V

L

V

Column Address Entry

& Read with

Auto-Precharge

READA

HX

L

H

L

H

VH

V

Auto-Refresh

REFA

HH

L

L

L

H

X

X

X

Self-Refresh Entry

REFS

H

L

L

L

L

H

X

X

X

Self-Refresh Exit

Burst Terminate

Mode Register Set

REFSX

TBST

MRS

L

H

H

X

X

X

X

X

X

L

H

L

H

HH

X

X

X

HX

L

H

HL

X

X

X

HX

L

L

L

L

L

L

V1

H=High Level, L=Low Level, V=Valid, X=Don't Care, n=CLK cycle number

NOTE:

1. A7-9,11-12=L, A0-A6 =Mode Address

MITSUBISHI ELECTRIC

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