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參數(shù)資料
| 型號(hào)： | IBM11T1645LP |
| 廠商： | IBM Microeletronics |
| 英文描述： | 1M x 64 144 PIN SO DIMM(1M x 64 工業(yè)標(biāo)準(zhǔn)144腳小外形雙列直插動(dòng)態(tài)RAM模塊) |
| 中文描述： | 100萬(wàn)× 64引腳SO DIMM內(nèi)存144（100萬(wàn)× 64工業(yè)標(biāo)準(zhǔn)144腳小外形雙列直插動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁(yè)數(shù)： | 1/32頁(yè) |
| 文件大小： | 607K |
| 代理商： | IBM11T1645LP |
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IBM11T1645LP
1M x 64 144 PIN SO DIMM
50H7629
SA14-4459-03
Revised 4/97
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 1 of 32
Features
144 Pin JEDEC Standard, 8 Byte Small Outline
Dual In-line Memory Module with 8 Byte busses
1Mx64 Extended Data Out SO DIMM
Performance:
All inputs and outputs are LVTTL (3.3V) compat-
ible
Single 3.3V
±
0.3V Power Supply
Au contacts
Optimized for byte-write non-parity applications
System Performance Benefits:
- Reduced noise (18 V
SS
/18V
CC
pins)
- Byte write, byte read accesses
- Serial PDs
Extended Data Out (EDO) Mode, Read-Modify-
Write Cycles
Refresh Modes: RAS-Only, CBR Hidden
Refresh, and Self Refresh
1024 refresh cycles distributed across 128ms
10/10 (Row/Column)
Card size: 2.66" x 1.0" x 0.149"
DRAMS in TSOP Package
Description
IBM11T1645LP is an industry standard 144-pin
8-byte Small Outline Dual In-line Memory Module
(SO DIMM) which is organized as a 1Mx64 high
speed memory array designed for use in non-parity
applications. The SO DIMM uses 4 1Mx16 EDO
DRAMs in TSOP packages. The use of EDO
DRAMs allows for a reduction in Page Mode Cycle
time from 40ns (Fast Page) to 25ns for 60ns EDO
modules. This card uses serial presence detects
implemented via a serial EEPROM using the two pin
I
2
C Protocol. This communication protocol uses
CLOCK (SCL) and DATA I/O (SDA) lines to syn-
chronously clock data between the master (ex: The
System Microprocessor) and the slave EEPROM
device. The device address for the EEPROM is set
to zero at the card. The first 128 bytes are utilized by
the SODIMM manufacturer and the second 128
bytes are available to the end user.
All IBM 144-pin SODIMMs provide a high perfor-
mance, flexible 8-byte interface in a 2.66” long
space-saving footprint. Related products are the
2Mx64, 4Mx64 and the x72 (ECC) SODIMMs.
-60
-6R
-70
t
RAC
RAS Access Time
60ns
60ns
70ns
t
CAC
CAS Access Time
15ns
17ns
20ns
t
AA
Access Time From Address
30ns
30ns
35ns
t
RC
Cycle Time
104ns 104ns 124ns
t
HPC
EDO Mode Cycle Time
25ns
25ns
30ns
Card Outline
1
2
59
60
61
62
143
144
(Front)
(Back)
IBM11T1645LP 1M x 6410/10, 3.3V, EDOMMDD41DSU-001019232.
Discontinued (9/98 - last order; 3/99 last ship)
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