IS45S86400D datasheet(11/66 Pages) ISSI

Part #	IS45S86400D

Description	Internal bank for hiding row access/precharge

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

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Integrated Silicon Solution, Inc. — www.issi.com

11

Rev. A

08/29/2012

IS42/45R86400D/16320D/32160D, IS42/45S86400D/16320D/32160D

Current State

CS

RAS CAS

WE

Address

Command

Action

Idle

H

X

DESL

NoporPowerDown(2)

L

H

X

NOP

NoporPowerDown(2)

L

H

L

X

BST

NoporPowerDown

L

H

L

H

BA,CA,A10

READ/READA

ILLEGAL(3)

L

H

L

A,CA,A10

WRIT/WRITA

ILLEGAL(3)

L

H

BA,RA

ACT

Rowactivating

L

H

L

BA,A10

PRE/PALL

Nop

L

H

X

REF/SELF

AutorefreshorSelf-refresh(4)

L

OC,BA1=L

MRS

Moderegisterset

RowActive

H

X

DESL

Nop

L

H

X

NOP

Nop

L

H

L

X

BST

Nop

L

H

L

H

BA,CA,A10

READ/READA

Beginread(5)

L

H

L

BA,CA,A10

WRIT/WRITA

Beginwrite(5)

L

H

BA,RA

ACT

ILLEGAL(3)

L

H

L

BA,A10

PRE/PALL

Precharge

Precharge all banks(6)

L

H

X

REF/SELF

ILLEGAL

L

OC,BA

MRS

ILLEGAL

Read

H

X

DESL

Continuebursttoendto

Row active

L

H

X

NOP

ContinuebursttoendRow

Row active

L

H

L

X

BST

Burststop,Rowactive

L

H

L

H

BA,CA,A10

READ/READA

Terminateburst,

begin new read (7)

L

H

L

BA,CA,A10

WRIT/WRITA

Terminateburst,

begin write (7,8)

L

H

BA,RA

ACT

ILLEGAL(3)

L

H

L

BA,A10

PRE/PALL

Terminateburst

Precharging

L

H

X

REF/SELF

ILLEGAL

L

OC,BA

MRS

ILLEGAL

Write

H

X

DESL

Continuebursttoend

Write recovering

L

H

X

NOP

Continuebursttoend

Write recovering

L

H

L

X

BST

Burststop,Rowactive

L

H

L

H

BA,CA,A10

READ/READA

Terminateburst,startread:

Determine AP (7,8)

L

H

L

BA,CA,A10

WRIT/WRITA

Terminateburst,newwrite:

Determine AP (7)

L

H

BA,RA

RAACT

ILLEGAL(3)

L

H

L

BA,A10

PRE/PALL

TerminateburstPrecharging(9)

L

H

X

REF/SELF

ILLEGAL

L

OC,BA

MRS

ILLEGAL

FUNCTIONAL TRUTH TABLE

Note:H=Vih,L=Vilx=VihorVil,V=ValidData,BA=BankAddress,CA+ColumnAddress,RA=RowAddress,OC=Op-Code

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