IS46LR16640C datasheet(37/47 Pages) ISSI

Il numero della parte	IS46LR16640C

Spiegazioni elettronici	1Gb (x16, x32) Mobile DDR SDRAM

PDF	47 Pages

Scroll/Zoom	100%

Produttore elettronici	ISSI [Integrated Silicon Solution, Inc]

Homepage	http://www.issi.com

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37 / 47 page

Rev. 0A | October 2022

www.issi.com - dram@issi.com

IS43/46LR32320C

IS43/46LR16640C

Figure24 : Random Write to write

Figure25 : Write to Read (Uninterrupting)

Notes:

1. Din n,p,m,q = Data-In from Column n,p,m,q.

2. Each Write command may be to any banks.

Notes:

1. Din n = Data-In from Column n, Dout m = Data-Out from Column m.

2. tWTR is referenced from the first positive CK edge after the last data-in pair.

3. Read and Write command can be directed to different banks, in which case tWTR is not required and the Read command

could be applied ealier.

DIN

q+1

Bank a

COL q

Bank a

COL p

WRITE

NOP

Bank a

COL n

DIN

Bank a

COL m

Address

/CLK

CLK

DQS

tDQSS

(NOM)

Command

DIN

n+1

DIN

p+1

DIN

m+1

DIN

Don’t care

NOP

WRITE

Bank a

COL m

NOP

READ

NOP

Bank a

COL n

Address

/CLK

CLK

DQS

tDQSS

(NOM)

Command

DIN

n+1

DIN

n+2

DIN

n+3

Don’t care

CL=3

NOP

DOUT

m+1

DOUT

tWTR

DOUT

m+2

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