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參數(shù)資料
| 型號： | IBM13T8644MPD |
| 廠商： | IBM Microeletronics |
| 英文描述： | Two Bank 8M x 64 SDRAM SO DIMM（Small Outline Dual In-line Memory Module）(2組 8M x 64 PC100小外形雙列直插同步動態(tài)RAM模塊) |
| 中文描述： | 兩銀行8米× 64 SDRAM的內(nèi)存蘇（小外形雙列直插內(nèi)存模塊）（2組8米× 64 PC100的小外形雙列直插同步動態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 265K |
| 代理商： | IBM13T8644MPD |
IBM13T8644MPD
Two Bank 8M x 64 SDRAM SO DIMM
45L7124.E93903A
5/99
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 5 of 17
Serial Presence Detect (Part 1 of 2)
Byte #
Description
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Notes
0
Number of Serial PD Bytes Written during Production
128
80
1
Total Number of Bytes in Serial PD device
256
08
2
Fundamental Memory Type
SDRAM
04
3
Number of Row Addresses on Assembly
12
0C
4
Number of Column Addresses on Assembly
8
08
5
Number of DIMM Banks
2
02
6 - 7
Data Width of Assembly
x64
4000
8
Voltage Interface Level of this Assembly
LVTTL
01
9
SDRAM Device Cycle Time at CL=3
10.0ns
A0
10
SDRAM Device Access Time from Clock at CL=3
7.0ns
70
11
DIMM Configuration Type
Non-Parity
00
12
Refresh Rate/Type
SR/1x(15.625us)
80
13
Primary SDRAM Device Width
x16
10
14
Error Checking SDRAM Device Width
N/A
00
15
SDRAM Device Attr: Min Clk Delay, Random Col
Access
1 Clock
01
16
SDRAM Device Attributes: Burst Lengths Supported
1,2,4,8, Full Page
8F
17
SDRAM Device Attributes: Number of Device Banks
4
04
18
SDRAM Device Attributes: CAS Latencies Supported
2, 3
06
19
SDRAM Device Attributes: CS Latency
0
01
20
SDRAM Device Attributes: WE Latency
0
01
21
SDRAM Module Attributes
Unbuffered
00
22
SDRAM Device Attributes: General
Wr-1/Rd Burst, Precharge All,
Auto-Precharge, V
DD
+/- 10%
0E
23
Minimum Clock Cycle at CL=2
15.0ns
F0
24
Maximum Data Access Time (t
AC
) from Clock at CL=2
8.0ns
80
25
Minimum Clock Cycle Time at CL=1
N/A
00
26
Maximum Data Access Time (t
AC
) from Clock at CL=1
N/A
00
27
Minimum Row Precharge Time (t
RP
)
30ns
1E
28
Minimum Row Active to Row Active delay (t
RRD
)
20ns
14
1. cc = Checksum Data byte, 00-FF (Hex)
2. “R” = Alphanumeric revision code, A-Z, 0-9
3. rr = ASCII coded revision code byte “R”
4. yy = Binary coded decimal year code, 00-99 (Decimal)
‘
00-63 (Hex)
5. ww = Binary coded decimal week code, 01-52 (Decimal)
‘
01-34 (Hex)
6. ss = Serial number data byte, 00-FF (Hex)
Discontinued (4/1/00 last order; 7/31/00 - last ship)
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