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HYM72V4005GU-50 データシートの表示(PDF) - Siemens AG
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HYM72V4005GU-50
3.3V 4M × 64-Bit EDO-DRAM Module 3.3V 4M x 72-Bit EDO-DRAM Module
Siemens AG
HYM72V4005GU-50 Datasheet PDF : 17 Pages
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HYM64(72)V4005/45GU-50/-60
4M x 64/72 DRAM Module
TRUTH TABLE
FUNCTION
RAS
Standby
H
Read
L
Early-Write
L
Late-Write
L
Read-Modify-Write
L
(RMW)
EDO Page Mode Read 1st Cycle L
2nd Cycle L
EDO Page Mode Write 1st Cycle L
2nd Cycle L
EDO Page Mode RMW 1st Cycle L
2st Cycle L
RAS only refresh
L
CAS-before-RAS refresh
H-L
Hidden Refresh
READ L-H-L
WRITE L-H-L
Self Refresh
H-L
CAS
X
L
L
L
L
H-L
H-L
H-L
H-L
H-L
H-L
H
L
L
L
L
WRITE
X
H
L
H-L
H-L
H
H
L
L
H-L
H-L
X
H
H
L
H
OE
X
L
X
H
L-H
L
L
X
X
L-H
L-H
X
X
L
X
X
ROW COL
ADDR ADDR
DQ0-DQ63
X
X High Impedance
ROW COL
Data Out
ROW COL
Data In
ROW COL
Data In
ROW COL Data Out, Data In
ROW
n/a
ROW
n/a
ROW
n/a
ROW
X
ROW
ROW
X
COL
COL
COL
COL
COL
COL
n/a
n/a
COL
COL
X
Data Out
Data Out
Data In
Data In
Data Out, Data In
Data Out, Data In
High Impedance
High Impedance
Data Out
Data In
High Impedance
Semiconductor Group
7
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