M2V56S20AKT-5 View Datasheet(PDF) - Mitsumi

Part Name

Description

Manufacturer

M2V56S20AKT-5

256M Synchronous DRAM

Mitsumi 

SDRAM (Rev.1.01)

Single Data Rate

July '01

MITSUBISHI LSIs

M2V56S20/ 30/ 40 AKT -5, -6, -7

256M Synchronous DRAM

FUNCTION TRUTH TABLE (continued)

Current State /CS

PRE -

H

CHARGING

L

L

L

L

L

L

L

ROW

H

ACTIVATING L

L

L

L

L

L

L

WRITE RE- H

COVERING

L

L

L

L

L

L

L

/RAS /CAS /WE

Address

X

X

XX

H

H

HX

H

H

LX

H

L

X BA, CA, A10

L

H

H BA, RA

L

H

L BA, A10

L

L

HX

Op-Code,

L

L

L

Mode-Add

X

X

XX

H

H

HX

H

H

LX

H

L

X BA, CA, A10

L

H

H BA, RA

L

H

L BA, A10

L

L

HX

Op-Code,

L

L

L

Mode-Add

X

X

XX

H

H

HX

H

H

LX

H

L

X BA, CA, A10

L

H

H BA, RA

L

H

L BA, A10

L

L

HX

Op-Code,

L

L

L

Mode-Add

Command

Action

DESEL NOP (Idle after tRP)

NOP

NOP (Idle after tRP)

TBST

ILLEGAL*2

READ / WRITE ILLEGAL*2

ACT

ILLEGAL*2

PRE / PREA NOP*4 (Idle after tRP)

REFA

ILLEGAL

MRS

ILLEGAL

DESEL NOP (Row Active after tRCD)

NOP

NOP (Row Active after tRCD)

TBST

ILLEGAL*2

READ / WRITE ILLEGAL*2

ACT

ILLEGAL*2

PRE / PREA ILLEGAL*2

REFA

ILLEGAL

MRS

ILLEGAL

DESEL NOP

NOP

NOP

TBST

ILLEGAL*2

READ / WRITE ILLEGAL*2

ACT

ILLEGAL*2

PRE / PREA ILLEGAL*2

REFA

ILLEGAL

MRS

ILLEGAL

MITSUBISHI ELECTRIC

9

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