MT55L256L32P Micron Semiconductor Products, Inc., MT55L256L32P Datasheet - Page 2

• Manufacturer Part Number: MT55L256L32P
• Description: 8Mb: 512K X 18, 256K X 32/36 Pipelined ZBT SRAM
• Manufacturer: Micron Semiconductor Products, Inc.

NOTE: Functional block diagrams illustrate simplified device operation. See truth table, pin descriptions, and timing diagrams
8Mb: 512K x 18, 256K x 32/36 Pipelined ZBT SRAM
MT55L512L18P_C.p65 – Rev. 2/02
for detailed information.
CKE#
CLK
CKE#
CLK
SA0, SA1, SA
SA0, SA1, SA
ADV/LD#
ADV/LD#
BWb#
BWd#
BWa#
MODE
BWc#
R/W#
BWb#
BWa#
CE2#
MODE
K
R/W#
OE#
CE#
CE2
CE2#
K
OE#
CE#
CE2
18
19
WRITE ADDRESS
WRITE ADDRESS
REGISTER 1
REGISTER 1
REGISTER 0
ADDRESS
REGISTER 0
ADDRESS
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
READ LOGIC
READ LOGIC
AND DATA COHERENCY
AND DATA COHERENCY
WRITE REGISTRY
CONTROL LOGIC
WRITE REGISTRY
CONTROL LOGIC
ADV/LD#
WRITE ADDRESS
ADV/LD#
WRITE ADDRESS
REGISTER 2
REGISTER 2
18
19
K
K
SA1
SA0
256K x 32/36
SA1
SA0
512K x 18
D1
D0
D1
D0
BURST
LOGIC
BURST
LOGIC
16
17
Q1
Q0
2
Q1
Q0
36
18
18
SA1'
SA0'
SA0'
SA1'
18
19
18
18
19
19
DRIVERS
DRIVERS
WRITE
WRITE
8Mb: 512K x 18, 256K x 32/36
36
18
Micron Technology, Inc., reserves the right to change products or specifications without notice.
256K x 8 x 4
256K x 9 x 4
512K x 9 x 2
MEMORY
MEMORY
REGISTER 1
ARRAY
ARRAY
(x32)
(x36)
INPUT
REGISTER 1
INPUT
18
36
E
E
PIPELINED ZBT SRAM
M
M
S
E
N
S
E
A
P
S
S
E
N
S
E
A
P
S
18
36
18
36
O
U
U
G
T
P
T
R
E
S
T
E
R
S
E
O
U
T
P
U
T
R
E
G
T
E
R
E
I
S
S
I
18
REGISTER 0
36
REGISTER 0
INPUT
INPUT
D
A
T
A
T
E
E
R
N
G
S
I
D
A
A
R
N
G
T
S
T
E
E
I
18
36
E
E
O
U
U
U
T
P
T
B
F
F
E
R
S
O
U
U
U
T
P
T
B
F
F
E
R
S
E
E
18
©2002, Micron Technology, Inc.
36
DQs
DQs
DQPa
DQPb
DQPc
DQPd