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參數(shù)資料
| 型號： | IBM11E8490BG |
| 廠商： | IBM Microeletronics |
| 英文描述： | 8M x 36 ECC-on-SIMM w/ Error Lines(8M x 36動態(tài)RAM模塊（片上帶糾錯代碼功能）) |
| 中文描述： | 8米× 36 ECC的問題，上海藥物研究所瓦特/錯誤線（8米× 36動態(tài)內(nèi)存模塊（片上帶糾錯代碼功能）） |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 293K |
| 代理商： | IBM11E8490BG |
IBM11D4490BG IBM11E4490BG
IBM11D8490BG IBM11E8490BG
4M/8M x 36 ECC-on-SIMM w/ Error Lines
Preliminary
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 4 of 20
75H3879
Revised 10/98
Truth Table
Function
RAS
CAS
WE
Row
Address
X
Row
Row
Column
Address
X
Col
Col
Error Line
All DQ, PQ bits
Notes
Standby
Read
Early-Write
Fast Page Mode - Read:
1st Cycle
Subsequent Cycles
Fast Page Mode - Write:
1st Cycle
Subsequent Cycles
RAS-Only Refresh
CAS-Before-RAS Refresh
Error during Read
Error during Write
H
L
L
X
L
L
X
H
L
High Impedance
Valid Data Out
Valid Data In
L
H
→
L
H
Row
Col
Valid Data Out
L
H
→
L
H
N/A
Col
Valid Data Out
L
H
→
L
L
Row
Col
Valid Data In
L
L
H
→
L
H
L
L
L
L
X
H
H
L
N/A
Row
X
X
X
Col
N/A
X
X
X
Valid Data In
High Impedance
High Impedance
Data Out
Data In
H
→
L
X
X
L
L
1
2
1. If all PQ’s are valid, ECC has successfully corrected single bit error, DQ contains Valid Data Out. If a PQ is invalid, ECC has
detected a multi-bit error, DQ’s for the corresponding byte contain invalid Data Out.
2. A parity error has been detected on data received from system. A subsequent read of this data will indicate a parity error (PQ
invalid). The operation of the error line during a write has not been characterized.
Presence Detect
Pin
4Mx36 (Industry Standard -70)
8Mx36 (Industry Standard -70)
Notes
PD1
V
ss
NC
1
PD2
NC
V
ss
1
PD3
V
SS
V
SS
1
PD4
NC
NC
1
1.
NC= OPEN
,
V
ss =
GND.
Absolute Maximum Ratings
Symbol
Parameter
Rating
Units
Notes
V
CC
Power Supply Voltage
-0.3 to 6.5
V
1
V
IN
Input Voltage
-0.3 to V
CC
+ 0.3
V
1
V
OUT
Output Voltage
-0.3 to V
CC
+ 0.3
V
1
T
C
Operating Temperature (Case)
0 to +65
°
C
1
T
STG
Storage Temperature
-40 to +125
°
C
1
P
D
Power Dissipation
24
W
1
I
OUT
Short Circuit Output Current
50
mA
1
1. Stresses greater than those listed may cause permanent damage to the device. This is a stress rating only, and device functional
operation at or above the conditions indicated is not implied. Exposure to absolute maximum rating conditions for extended peri-
ods may affect reliability.
Discontinued (7/00 - last order; 9/00 - last ship)
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