參數(shù)資料
型號(hào)： IBM11M8735CB
廠商： IBM Microeletronics
英文描述： 8M x 72 DRAM Module(8M x 72 動(dòng)態(tài)RAM模塊)
中文描述： 8米× 72內(nèi)存（8米× 72動(dòng)態(tài)內(nèi)存模塊）
文件頁(yè)數(shù)： 4/29頁(yè)
文件大?。?/td> 597K
代理商： IBM11M8735CB
IBM11M8735C
IBM11M8735CB
8M x 72 DRAM MODULE
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 4 of 28
50H8010
SA14-4635-04
Revised 12/96
Truth Table
Function
RAS
CAS
WE
OE
Row
Address
Column
Address
PDE
DQx
Standby
H
H
→
X
X
X
X
X
X
High Impedance
Read
L
L
H
L
Row
Col
X
Valid Data Out
Early-Write
L
L
L
X
Row
Col
X
Valid Data In
Late-Write
L
L
H
→
L
H
Row
Col
X
Valid Data In
RMW
L
L
H
→
L
L
→
H
Row
Col
X
Valid Data Out,
Valid Data In
EDO Page Mode - Read
1st Cycle
L
H
→
L
H
L
Row
Col
X
Valid Data Out
Subsequent Cycles
L
H
→
L
H
L
N/A
Col
X
Valid Data Out
EDO Page Mode - Write
1st Cycle
L
H
→
L
L
X
Row
Col
X
Valid Data In
Subsequent Cycles
L
H
→
L
L
X
N/A
Col
X
Valid Data In
EDO Page Mode - RMW
1st Cycle
L
H
→
L
H
→
L
L
→
H
Row
Col
X
Valid Data Out,
Valid Data In
Subsequent Cycles
L
H
→
L
H
→
L
L
→
H
N/A
Col
X
Valid Data Out,
Valid Data In
RAS-Only Refresh
L
H
X
X
Row
N/A
X
High Impedance
CAS-Before-RAS Refresh
H
→
L
L
H
X
X
X
X
High Impedance
Hidden Refresh
Read
L
→
H
→
L
L
H
L
Row
Col
X
Data Out
Write
L
→
H
→
L
L
H
X
Row
Col
X
Data In
Read Presence Detects
X
X
X
X
X
X
L
Not Affected
(PD Bits Valid)
Presence Detect
Pin
-50
-60
-70
PD1 (PD1 - PD4: Addressing/Density)
0
0
0
PD2
0
0
0
PD3
1
1
1
PD4
1
1
1
PD5 (EDO Detection)
1
1
1
PD6 (PD6 - PD7: Speed)
0
1
0
PD7
0
1
1
PD8 (Parity/ECC Designator)
0
0
0
ID0 (DIMM Type/Width)
0
0
0
ID1 (Refresh Mode)
0
0
0
1. PD1-8 are buffered outputs (0 = driven to V
OL
, 1 = open)
2. ID0-1 are unbuffered outputs (0 = V
SS
, 1 = open)
3. PDE should be tied high or low at system level if not used
Discontinued (9/98 - last order; 3/99 - last ship)
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