MT48LC32M8A2B4-75LIT(2012-10) 데이터 시트보기 (PDF) - Micron Technology

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MT48LC32M8A2B4-75LIT
(Rev.:2012-10)

256Mb: x4, x8, x16 SDRAM

Micron Technology 

Figure 2: 32 Meg x 8 Functional Block Diagram

256Mb: x4, x8, x16 SDRAM

Functional Block Diagrams

CKE

CLK

CS#

WE#

CAS#

RAS#

CONTROL

LOGIC

BANK3

BANK2

BANK1

MODE REGISTER

12

A[12:0]

BA[1:0]

15

ADDRESS

REGISTER

REFRESH

COUNTER

13

ROW-

13

ADDRESS

MUX

13

BANK0

ROW-

ADDRESS

LATCH

&

DECODER

8192

BANK0

MEMORY

ARRAY

(8192 x 1024 x 8)

SENSE AMPLIFIERS

8192

2

BANK

CONTROL

2

LOGIC

COLUMN-

ADDRESS

10

10

COUNTER/

LATCH

I/O GATING

DQM MASK LOGIC

READ DATA LATCH

WRITE DRIVERS

1024

(x8)

COLUMN

DECODER

1

1

DATA

8

OUTPUT

REGISTER

8

DATA

8

INPUT

REGISTER

DQM

DQ[7:0]

PDF: 09005aef8091e6d1

256Mb_sdr.pdf - Rev. R 10/12 EN

9

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