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參數(shù)資料
| 型號(hào)： | IBM11D4480BG |
| 廠商： | IBM Microeletronics |
| 英文描述： | 4M x 36 ECC-on-SIMM（single in-line memory module）(4M x 36 片上帶可兼容的糾錯(cuò)代碼的單列動(dòng)態(tài)RAM模塊) |
| 中文描述： | 4米× 36 ECC的問題，上海藥物研究所（單列直插式內(nèi)存模塊）（4米× 36片上帶可兼容的糾錯(cuò)代碼的單列動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 241K |
| 代理商： | IBM11D4480BG |
IBM11D4480BG
IBM11E4480BG
4M x 36 ECC-on-SIMM
26H2527
Revised 10/98
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 1 of 18
Features
72-Pin JEDEC-Standard Single In-Line
Memory Module
Performance:
Single-error-correct (SEC) high-speed ECC
algorithm
Single 5.0V
±
0.25V Power Supply
All inputs & outputs are fully TTL & CMOS
compatible
Fast Page Mode access cycle
Refresh Modes: RAS-Only and CBR
2048 refresh cycles distributed across 32ms
11/11 Addressing (Row/Column)
Provides ECC and retrofits to standard x36
socket
Au and Sn/Pb versions available
Description
The IBM11D4480BG is a 16MB industry standard
72-pin 4-byte single in-line memory module (SIMM)
that has a fully functional, retrofittable and plug-com-
patible on-board error-correcting-code (ECC). The
ECC function is completely self-contained and trans-
parent to the system. The module is manufactured
with 12 4M x 4 DRAMS and 4 ECC ASICs. The
ECC-on-SIMM module corrects single-bit errors that
may occur in any byte of SIMM data. It is recom-
mended for systems that run critical applications but
do not have native ECC. This family of SIMMs (2M x
36, 4M x 36, and 8M x 36) provides the memory reli-
ability required by these applications with no perfor-
mance penalty.
-70
t
RAC
RAS Access Time
70ns
t
CAC
CAS Access Time
20ns
t
AA
Access Time From Address
35ns
t
RC
Cycle Time
130ns
t
PC
Fast Page Mode Cycle Time 45ns
Card Outline
1
36 37
72
IBM11D4480BA4M x 36 EOS11/11, 5.0V, Sn/Pb. IBM11E4480BA4M x 36 EOS11/11, 5.0V, Au.
Discontinued (7/00 - last order; 9/00 - last ship)
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