IS46LR32400G datasheet(10/43 Pages) ISSI

Part #	IS46LR32400G

Description	Four internal banks for concurrent operation

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

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10 / 43 page

10

Rev. 00A | June 2014

www.issi.com - dram@issi.com

IS43/46LR32400G

Advanced Information

Notes:

1.

PCG = PRECHARGE command, MRS = LOAD MODE REGISTER command, AREF = AUTOREFRESH command,

ACT = ACTIVE command, RA = Row address, BA = Bank address.

2.

NOP or DESELECT commands are required for at least 200μs.

3.

Other valid commands are possible.

4.

NOPs or DESELECTs are required during this time.

Figure6 : Power up sequence

ACT

BA

BA0=L,

BA1=H

BA0=L,

BA1=L

All

Banks

MRS

AREF

PCG

NOP

NOP2

NOP3

CLK

/CLK

CKE

T0

Command1

T1

Ta0

tCL

DM

A0~A9, A11

Tb0

Tc0

Td0

Te0

Tf0

tCK

LVCMOS

HIGH LEVEL

A10

BA0, BA1

DQS, DQ

High-Z

T = 200 µs

tIS

RA

CODE

tIS

tIH

RA

CODE

tIS

tIH

tIS

tIH

tRP4

tRFC4

tMRD4

tIH

VDDQ

VDD

tIS

tIH

Load Standard Mode

Register

Load Extended Mode

Register

Power-up: VDD and CLK stable

Don’ t care

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