MT48LC4M32B2F5-6 데이터 시트보기 (PDF) - Micron Technology

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MT48LC4M32B2F5-6

1 Meg x 32 x 4 Banks SDR SDRAM

Micron Technology 

Functional Block Diagram

Figure 1: 4 Meg x 32 Functional Block Diagram

128Mb: x32 SDRAM

Functional Block Diagram

CKE

CLK

CS#

WE#

CAS#

RAS#

Control

logic

Bank 3

Bank 2

Bank 1

Mode register

12

A[11:0],

BA0, BA1

14

Address

register

Refresh

counter

12

Row-

12

address

MUX

12

Bank 0

row-

address

latch

4096

and

decoder

Bank 0

memory

array

(4096 x 2048 x 4)

Sense amplifiers

4096

2

Bank

control

2

logic

11

Column-

address

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: 09005aef80872800

128mb_x32_sdram.pdf - Rev. U 04/13 EN

8

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