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IC41UV4105 Datasheet(PDF) 3 Page - Integrated Circuit Solution Inc

Part No. IC41UV4105
Description  1Mx4 bit Dynamic RAM with Fast Page Mode
Download  17 Pages
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Manufacturer  ICSI [Integrated Circuit Solution Inc]
Direct Link  http://www.icsi.com.tw
Logo ICSI - Integrated Circuit Solution Inc

IC41UV4105 Datasheet(HTML) 3 Page - Integrated Circuit Solution Inc

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IC41UV4105
Integrated Circuit Solution Inc.
3
DR020-0B 08/24/2001
FUNCTIONAL BLOCK DIAGRAM
TRUTH TABLE
Function
RAS
RAS
RAS
RAS
RAS
CAS
CAS
CAS
CAS
CAS
WE
WE
WE
WE
WE
OE
OE
OE
OE
OE
Address tR/tC I/O
Standby
H
H
X
X
X
High-Z
Read
L
L
H
L
ROW/COL
DOUT
Write: Word (Early Write)
L
L
L
X
ROW/COL
DIN
Read-Write
L
L
H
→LL→H
ROW/COL
DOUT, DIN
Hidden Refresh
Read
L
→H→L
L
H
L
ROW/COL
DOUT
Write(1)
L
→H→L
L
L
X
ROW/COL
DOUT
RAS-Only Refresh
L
H
X
X
ROW/NA
High-Z
CBR Refresh
H
→L
L
X
X
X
High-Z
Note:
1.
EARLY WRITE only.
OE
WE
CAS
CAS
WE
DATA I/O BUS
COLUMN DECODERS
SENSE AMPLIFIERS
MEMORY ARRAY
1,048,576 x 4
CAS
CONTROL
LOGIC
WE
CONTROL
LOGICS
OE
CONTROL
LOGIC
I/O0-I/O3
RAS
A0-A9
RAS
CLOCK
GENERATOR
REFRESH
COUNTER
ADDRESS
BUFFERS


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