- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379204 > IBM11M2640H (IBM Microeletronics) 2M x 64 DRAM Module(2M x 64 動態(tài)RAM模塊) PDF資料下載
參數(shù)資料
| 型號： | IBM11M2640H |
| 廠商： | IBM Microeletronics |
| 英文描述： | 2M x 64 DRAM Module(2M x 64 動態(tài)RAM模塊) |
| 中文描述： | 200萬× 64內存（2米× 64動態(tài)內存模塊） |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 480K |
| 代理商： | IBM11M2640H |
IBM11M2640H
IBM11M2640HB
2M x 64 DRAM MODULE
64G1559
SA14-4612-04
Revised 5/96
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 1 of 26
Features
168 Pin JEDEC Standard, 8 Byte Dual In-line
Memory Module
2Mx64 Fast Page Mode DIMM
Performance:
All inputs and outputs are LVTTL (3.3V) or TTL
(5.0V) compatible
Single 3.3V
±
0.3V or 5V
±
0.5V Power Supply
Au contacts
Description
Optimized for byte-write non-parity applications
System Performance Benefits:
- Buffered inputs (except RAS, Data)
- Reduced noise (32 V
SS
/V
CC
pins)
- 4 Byte Interleave enabled
- Byte write, byte read accesses
- Buffered PDs
Fast Page Mode, Read-Modify-Write Cycles
Refresh Modes: RAS-Only, CBR and Hidden
Refresh
2048 refresh cycles distributed across 32ms
11/10 addressing (Row/Column)
Card size: 5.25" x 1.0" x 0.157"
DRAMS in TSOP Package
IBM11M2640H is an industry standard 168-pin
8-byte Dual In-line Memory Module (DIMM) which is
organized as a 2Mx64 high speed memory array for
non-parity applications. The DIMM uses 8 2Mx8
DRAMs in TSOP packages.
Improved system performance is provided by the
on-DIMM buffering of selected input signals. The
specified timings include all buffer, net and skew
delays, which simplifies the memory subsystem
design analysis. The data and
RAS
signals are not
buffered, which preserves the DRAM access specifi-
cations of 60ns and 70ns.
Presence Detect (PD) and Identification Detect (ID)
bits provide information about the DIMM density,
addressing, performance and features. PD bits can
be dotted at the system level and activated for each
DIMM position using the PD enable (PDE) signal. ID
bits also allow detection of card features, and may
be dot-or’d at the system level to provide information
for the entire DIMM bank. For example, if a x64 par-
ity DIMM were inserted into a bank of x72 parity
DIMMs, ID0 (grounded) would indicate that at least
one DIMM in that memory bank is x64, and if the
memory controller is designed to do so, all DIMMs in
that memory bank will function as x64s.
All IBM 168-pin DIMMs provide a high performance,
flexible 8-byte interface in a 5.25” long space-saving
footprint. Related products are the x72 parity (5V)
and ECC DIMMs (5V and 3.3V).
-60
-70
t
RAC
RAS Access Time
60ns
70ns
t
CAC
CAS Access Time
20ns
25ns
t
AA
Access Time From Address
35ns
40ns
t
RC
Cycle Time
110ns
130ns
t
PC
Fast Page Mode Cycle Time
40ns
45ns
Card Outline (3.3V)
1
85
10
94
11
95
40
124
41
125
84
168
(Front)
(Back)
See Detail A
for 5.0V Version
Detail A
IBM11M2640H2M x 6411/10, 5.0V, Au.
Discontinued (9/98 - last order; 3/99 last ship)
相關PDF資料 |
PDF描述 |
|---|---|
| IBM11M2730HB | 2M x 72 DRAM Module(2M x 72 動態(tài)RAM模塊) |
| IBM11M2730H | 2M x 72 DRAM Module(2M x 72 動態(tài)RAM模塊) |
| IBM11M4640CB | 4M x 64 DRAM MODULE(4M x 64 工業(yè)標準的168腳8位動態(tài)RAM模塊) |
| IBM11M4640C | 4M x 64 DRAM MODULE(4M x 64 工業(yè)標準的168腳8位動態(tài)RAM模塊) |
| IBM11M4730CF | 4M x 72 DRAM Module(4M x 72 動態(tài)RAM模塊) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IBM14H5481 | 制造商:AVED Memory Products 功能描述: |
| IBM14H5540 | 制造商:AVED MEMORY PRODUCTS 功能描述: 制造商:AVED Memory Products 功能描述: |
| IBM17R8251 | 制造商:AVED Memory Products 功能描述: |
| IBM17R8252 | 制造商:AVED Memory Products 功能描述: |
| IBM1805T | 制造商:Schneider Electric 功能描述:IBM1805T |
發(fā)布緊急采購，3分鐘左右您將得到回復。