MT48LC4M32B2 datasheet(4/52 Pages) MICRON

Part #	MT48LC4M32B2

Description	SYNCHRONOUS DRAM

Download	52 Pages

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Manufacturer	MICRON [Micron Technology]

Direct Link	http://www.micron.com

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4

128Mb: x32 SDRAM

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

128MbSDRAMx32_D.p65 – Rev. D; Pub. 6/02

128Mb: x32

SDRAM

FUNCTIONAL BLOCK DIAGRAM

4 Meg x 32 SDRAM

12

RAS#

CAS#

CLK

CS#

WE#

CKE

8

A0–A11,

BA0, BA1

DQM0–

DQM3

14

256

(x32)

8192

I/O GATING

DQM MASK LOGIC

READ DATA LATCH

WRITE DRIVERS

COLUMN

DECODER

BANK0

MEMORY

ARRAY

(4,096 x 256 x 32)

BANK0

ROW-

ADDRESS

LATCH

&

DECODER

4096

SENSE AMPLIFIERS

BANK

CONTROL

LOGIC

DQ0–

DQ31

32

DATA

INPUT

REGISTER

DATA

OUTPUT

REGISTER

32

BANK1

BANK0

BANK2

BANK3

12

8

2

4

2

REFRESH

COUNTER

12

MODE REGISTER

CONTROL

LOGIC

ROW-

ADDRESS

MUX

ADDRESS

REGISTER

COLUMN-

ADDRESS

COUNTER/

LATCH

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