MT46V128M8 データシートの表示（PDF） - Micron Technology

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MT46V128M8

DOUBLE DATA RATE (DDR) SDRAM

Micron Technology 

PRELIMINARY

1Gb: x4, x8, x16

DDR SDRAM

Figure 2: Functional Block Diagram 256 Meg x4

CKE

CK#

CK

CS#

WE#

CAS#

RAS#

CONTROL

LOGIC

BANK3

BANK2

BANK1

MODE REGISTERS

16

A0-A13,

BA0, BA1

16

ADDRESS

REGISTER

REFRESH 14

COUNTER

ROW-

14

ADDRESS

MUX

14

BANK0

ROW-

ADDRESS

LATCH

16,384

&

DECODER

BANK0

MEMORY

ARRAY

(16,384 x 2,048 x 8)

SENSE AMPLIFIERS

(16,384)

2

BANK

CONTROL

LOGIC

2

I/O GATING

DM MASK LOGIC

8

2048

COLUMN

DECODER

COLUMN-

ADDRESS

11

12

COUNTER/

LATCH

1

CK

4

8

READ

LATCH 4

MUX

COL0

MASK

WRITE

8

FIFO

2

&

DRIVERS

8

clk

clk

out

in DATA

DATA

DLL

4

DQS

GENERATOR

DRVRS

1

INPUT

REGISTERS

1

1

1

1

4

4

4

4

DQS

1

RCVRS

4

CK

1

COL0

DQ0–

DQ3

DQS

DM

09005aef8076894f

1gbDDRx4x8x16_2.fm - Rev. A 3/03 EN

6

Micron Technology, Inc., reserves the right to change products or specifications without notice.

©2003 Micron Technology. Inc.

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