3

4 Meg x 4 FPM DRAM

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

D49_5V.p65 – Rev. 5/00

©2000, Micron Technology, Inc.

4 MEG x 4

FPM DRAM

FUNCTIONAL BLOCK DIAGRAM – 2K REFRESH

4,096

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

RAS#

12

12

10

NO. 2 CLOCK

GENERATOR

REFRESH

CONTROLLER

NO. 1 CLOCK

GENERATOR

Vss

12

WE#

CAS#

10

COLUMN-

ADDRESS

BUFFER(10)

ROW-

ADDRESS

BUFFERS (12)

4,096

1,024

COLUMN

DECODER

OE#

DQ0

DQ1

DQ2

DQ3

4

4

4

4

REFRESH

COUNTER

1,024

4,096 x 1,024 x 4

MEMORY

ARRAY

SENSE AMPLIFIERS

I/O GATING

DATA-OUT

BUFFER

DATA-IN

BUFFER

4,096

2,048

2,048

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

RAS#

11

11

11

NO. 2 CLOCK

GENERATOR

REFRESH

CONTROLLER

NO. 1 CLOCK

GENERATOR

11

WE#

CAS#

10

COLUMN-

ADDRESS

BUFFER(11)

ROW-

ADDRESS

BUFFERS (11)

2,048

2,048

1,024

COLUMN

DECODER

OE#

DQ0

DQ1

DQ2

DQ3

4

4

4

4

REFRESH

COUNTER

1

1,024

4,096 x 1,024 x 4

MEMORY

ARRAY

SENSE AMPLIFIERS

I/O GATING

DATA-OUT

BUFFER

DATA-IN

BUFFER

2,048

FUNCTIONAL BLOCK DIAGRAM – 4K REFRESH