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AS4LC4M4883C Datasheet(PDF) 4 Page - Austin Semiconductor

Part No. AS4LC4M4883C
Description  4 MEG x 4 DRAM 3.3V, EDO PAGE MODE
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Manufacturer  AUSTIN [Austin Semiconductor]
Direct Link  http://www.austinsemiconductor.com
Logo AUSTIN - Austin Semiconductor

AS4LC4M4883C Datasheet(HTML) 4 Page - Austin Semiconductor

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AS4LC4M4
Austin Semiconductor, Inc., reserves the right to change products or specifications without notice.
Rev. 11/97
DS000022
AS4LC4M4 883C
4 MEG x 4 DRAM
AUSTIN SEMICONDUCTOR, INC.
FUNCTIONAL BLOCK DIAGRAM
2048
2048
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
VDD
Vss
11
WE
CAS
10
COLUMN-
ADDRESS
BUFFER(11)
ROW-
ADDRESS
BUFFERS (11)
2048
2048
1024
COLUMN
DECODER
OE
DQ1
DQ2
DQ3
DQ4
4
4
4
4
REFRESH
COUNTER
1
1024
4096 x 1024 x 4
MEMORY
ARRAY
SENSE AMPLIFIERS
I/O GATING
DATA-OUT
BUFFER
DATA-IN
BUFFER
2048
TRUTH TABLE
ADDRESSES
DATA-IN/OUT
FUNCTION
?R?A/S
?C?A/S
?W/E
?O/E
tR
tC
DQ1-DQ4
Standby
H
H
>X
XXXX
High-Z
READ
L
L
H
L
ROW
COL
Data-Out
EARLY WRITE
L
L
L
X
ROW
COL
Data-In
READ WRITE
L
L
H
>LL>H
ROW
COL
Data-Out, Data-In
EDO-PAGE-MODE
1st Cycle
L
H
>L
H
L
ROW
COL
Data-Out
READ
2nd Cycle
L
H
>L
H
L
n/a
COL
Data-Out
EDO-PAGE-MODE
1st Cycle
L
H
>L
L
X
ROW
COL
Data-In
EARLY-WRITE
2nd Cycle
L
H
>L
L
X
n/a
COL
Data-In
Any Cycle
L
L
>H
H
L
n/a
n/a
Data-Out
EDO-PAGE-MODE
1st Cycle
L
H
>LH>LL>H
ROW
COL
Data-Out, Data-In
READ-WRITE
2nd Cycle
L
H
>LH>LL>H
n/a
COL
Data-Out, Data-In
HIDDEN
READ
L
>H>L
L
H
L
ROW
COL
Data-Out
REFRESH
WRITE
L
>H>L
L
L
X
ROW
COL
Data-In
?R?A/S-ONLY REFRESH
L
H
X
X
ROW
n/a
High-Z
CBR REFRESH
H
>L
L
H
X
X
X
High-Z


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