2

8Mb: 512K x 18, 256K x 32/36 Flow-Through SyncBurst SRAM

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

MT58L512L18F_2.p65 – Rev. 7/00

©2000, Micron Technology, Inc.

8Mb: 512K x 18, 256K x 32/36

FLOW-THROUGH SYNCBURST SRAM

FUNCTIONAL BLOCK DIAGRAM

512K X 18

DQs

DQPa

DQPb

ADDRESS

REGISTER

ADV#

CLK

BINARY

COUNTER AND

LOGIC

CLR

Q1

Q0

ADSC#

19

19

17

19

CE#

ENABLE

REGISTER

2

OE#

SENSE

AMPS

512K x 9 x 2

MEMORY

ARRAY

ADSP#

OUTPUT

BUFFERS

INPUT

REGISTERS

2

MODE

CE2

CE2#

GW#

BWE#

SA0, SA1, SAs

BWb#

BWa#

BYTE “b”

WRITE REGISTER

BYTE “a”

WRITE REGISTER

SA0'

SA1'

SA0-SA1

BYTE “b”

WRITE DRIVER

9

18

18

18

18

9

BYTE “a”

WRITE DRIVER

NOTE: Functional Block Diagrams illustrate simplified device operation. See Truth Table, Pin Descriptions, and timing diagrams

for detailed information.

DQs

DQPa

DQPb

DQPc

DQPd

ADDRESS

REGISTER

ADV#

CLK

BINARY

COUNTER

AND LOGIC

CLR

Q1

Q0

ADSP#

ADSC#

18

18

16

18

CE#

CE2

CE2#

OE#

ENABLE

REGISTER

4

SENSE

AMPS

OUTPUT

BUFFERS

INPUT

REGISTERS

256K x 8 x 4

(x32)

256K x 9 x 4

(x36)

MEMORY

ARRAY

MODE

BWE#

GW#

BWd#

BWc#

BWb#

BWa#

BYTE “d”

WRITE REGISTER

BYTE “c”

WRITE REGISTER

BYTE “b”

WRITE REGISTER

BYTE “a”

WRITE REGISTER

BYTE “b”

WRITE DRIVER

BYTE “c”

WRITE DRIVER

BYTE “d”

WRITE DRIVER

9

9

9

36

36

36

36

9

SA0, SA1, SAs

SA0'

SA1'

SA0-SA1

BYTE “a”

WRITE DRIVER

FUNCTIONAL BLOCK DIAGRAM

256K X 32/36