MT48LC32M8A2FB-7EL 데이터 시트보기 (PDF) - Micron Technology

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MT48LC32M8A2FB-7EL

256Mb: x4, x8, x16 SDRAM

Micron Technology 

Functional Block Diagrams

Figure 1: 64 Meg x 4 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 2048 x 4)

SENSE AMPLIFIERS

8192

2

BANK

CONTROL

2

LOGIC

COLUMN-

ADDRESS

11

11

COUNTER/

LATCH

I/O GATING

DQM MASK LOGIC

READ DATA LATCH

WRITE DRIVERS

2048

(x4)

COLUMN

DECODER

1

1

DATA

4

OUTPUT

REGISTER

4

DATA

4

INPUT

REGISTER

DQM

DQ[3:0]

PDF: 09005aef8091e6d1

256Mb_sdr.pdf - Rev. S 12/12 EN

8

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

© 1999 Micron Technology, Inc. All rights reserved.

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