IC41SV4105-100J ICSI [Integrated Circuit Solution Inc], IC41SV4105-100J Datasheet - Page 3

• Manufacturer Part Number: IC41SV4105-100J
• Description: 1Mx4 bit Dynamic RAM with Fast Page Mode
• Manufacturer: ICSI [Integrated Circuit Solution Inc]

IC41SV4105
Integrated Circuit Solution Inc.
DR032-0A 10/29/2001
FUNCTIONAL BLOCK DIAGRAM
TRUTH TABLE
Function
Standby
Read
Write: Word (Early Write)
Read-Write
Hidden Refresh
RAS-Only Refresh
CBR Refresh
Note:
1.
EARLY WRITE only.
A0-A9
CAS
RAS
OE
WE
GENERATOR
REFRESH
CONTROL
COUNTER
ADDRESS
BUFFERS
CLOCK
LOGIC
CAS
RAS
Write
Read
(1)
L→H→L
L→H→L
H→L
RAS
RAS
RAS
RAS
RAS
CAS
H
L
L
L
L
CAS
CAS
CAS
CAS
CAS
H
H
L
L
L
L
L
L
CONTROL
LOGICS
WE
COLUMN DECODERS
SENSE AMPLIFIERS
H→L
WE
WE
WE
WE
WE
MEMORY ARRAY
X
H
H
X
L
X
L
DATA I/O BUS
1,048,576 x 4
L→H
OE
OE
WE
OE
OE
OE
X
X
X
X
X
L
L
Address t
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/NA
CONTROL
LOGIC
X
X
OE
R
/t
C
I/O
High-Z
D
D
D
D
D
High-Z
High-Z
OUT
IN
OUT
OUT
IN
, D
IN
I/O0-I/O3
3