Discontinued (9/98 - last order; 3/99 last ship)
IBM11T8645HP
8M x 64 144 PIN SO DIMM
Truth Table
Row
Address
Column
Address
Function
RAS
CAS
WE
OE
DQx
Standby
H
L
L
L
L
L
L
L
L
L
L
X
L
X
H
X
L
X
X
High Impedance
Valid Data Out
Valid Data In
Read
Row
Row
Row
Row
Row
N/A
Col
Early-Write
L
L
X
Col
H→L
H→L
Late-Write
L
H
Col
Valid Data In
L→H
RMW
L
Col
Valid Data In/Out
Valid Data Out
Valid Data Out
Valid Data In
H→L
H→L
H→L
H→L
H→L
H→L
EDO Page Mode - Read 1st Cycle
Subsequent Cycles
EDO Page Mode - Write 1st Cycle
Subsequent Cycles
EDO Page Mode - RMW 1st Cycle
Subsequent Cycles
H
H
L
L
Col
Col
L
X
Row
N/A
Col
L
X
Col
Valid Data In
H→L
H→L
L→H
L→H
Row
N/A
Col
Valid Data In/Out
Valid Data In/Out
Col
L
H
L
L
X
H
H
X
X
L
Row
X
N/A
X
High Impedance
High Impedance
Data Out
RAS-Only Refresh
H→L
CAS-Before-RAS Refresh
L→H→L
Read
Write
Row
Col
Hidden Refresh
Self Refresh
L→H→L
H→L
L
L
H
H
X
X
Row
X
Col
X
Data In
High Impedance
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Use is further subject to the provisions at the end of this document.
75H3164
GA14-4479-02
Rev 11/97
Page 4 of 32
IBM [ IBM ]
