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AS4LC4M4883C 데이터 시트보기 (PDF) - Austin Semiconductor
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AS4LC4M4883C
4 MEG x 4 DRAM 3.3V, EDO PAGE MODE
Austin Semiconductor
AS4LC4M4883C Datasheet PDF : 20 Pages
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AUSTIN SEMICONDUCTOR, INC.
AS4LC4M4 883C
4 MEG x 4 DRAM
WE
CAS
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
RAS
NO. 2 CLOCK
GENERATOR
COLUMN-
11
ADDRESS
BUFFER(11)
REFRESH
CONTROLLER
REFRESH
COUNTER
11
ROW-
11
ADDRESS
BUFFERS (11)
NO. 1 CLOCK
GENERATOR
FUNCTIONAL BLOCK DIAGRAM
DATA-IN
4
BUFFER
DATA-OUT
4
BUFFER
4
DQ1
DQ2
DQ3
DQ4
OE
10
COLUMN
DECODER
1
1024
4
SENSE AMPLIFIERS
I/O GATING
1024
2048
2048
4096 x 1024 x 4
2048
MEMORY
11
2048
2048
ARRAY
V
DD
Vss
TRUTH TABLE
FUNCTION
Standby
READ
EARLY WRITE
READ WRITE
EDO-PAGE-MODE
READ
EDO-PAGE-MODE
EARLY-WRITE
EDO-PAGE-MODE
READ-WRITE
HIDDEN
REFRESH
?
R
?
A
/
S-ONLY REFRESH
CBR REFRESH
1st Cycle
2nd Cycle
1st Cycle
2nd Cycle
Any Cycle
1st Cycle
2nd Cycle
READ
WRITE
?
R
?
A
/
S
H
L
L
L
L
L
L
L
L
L
L
L
>
H
>
L
L
>
H
>
L
L
H
>
L
?
C
?
A
/
S
H
>
X
L
L
L
H
>
L
H
>
L
H
>
L
H
>
L
L
>
H
H
>
L
H
>
L
L
L
H
L
?
W
/
E
X
H
L
H
>
L
H
H
L
L
H
H
>
L
H
>
L
H
L
X
H
?
O
/
E
X
L
X
L
>
H
L
L
X
X
L
L
>
H
L
>
H
L
X
X
X
ADDRESSES
t
R
t
C
X
X
ROW COL
ROW COL
ROW COL
ROW COL
n/a
COL
ROW COL
n/a
COL
n/a
n/a
ROW COL
n/a
COL
ROW COL
ROW COL
ROW
n/a
X
X
DATA-IN/OUT
DQ1-DQ4
High-Z
Data-Out
Data-In
Data-Out, Data-In
Data-Out
Data-Out
Data-In
Data-In
Data-Out
Data-Out, Data-In
Data-Out, Data-In
Data-Out
Data-In
High-Z
High-Z
AS4LC4M4
Rev. 11/97
DS000022
2-76
Austin Semiconductor, Inc., reserves the right to change products or specifications without notice.
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