參數(shù)資料
型號(hào): VS26417801CTG-8L
廠商: VANGUARD INTERNATIONAL SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 2M X 64 SYNCHRONOUS DRAM MODULE, 6 ns, DMA168
封裝: DIMM-168
文件頁數(shù): 20/30頁
文件大小: 296K
代理商: VS26417801CTG-8L
Document:1G5-0156
Rev.1
Page 12
VIS
VS26417801C,VS46417801C
2M,4MX64-Bit
SDRAM Module
Serial presence detect information(VS46417801C)
Byte
Function described
Function Supported
HEX
-8H
-8L
-10
-8H
-8L
-10
0
Number of bytes used by Vanguard
128
80
1
Total SPD memory size
256
8
2
Memory Type
SDRAM
4
3
Number of Row addresses
11
B
4
Number of Column addresses
9
5
Number of Banks on module
2
6
Module data width
64
40
7
Module data width (continued)
0
8
Module voltage interface lelevls
LVTTL
1
9
SDRAM cycle time. CAS latency = 3
10ns
A0
10
SDRAM access from clock. CAS latency = 3
6ns
8ns
60
80
11
Module configuration type
Non - Parity
0
12
Refresh Rate/Type
15.6us/self
80
13
SDRAM width, Primary SDRAM
8
14
Error checking SDRAM data width
N/A
0
15
Min. clock delay, Back to back random column address
1
16
Burst length supported
1,2,4,8,Page
8F
17
Number of banks on each SDRAM device
2
18
CAS latencies supported
CL=2,3
6
19
CS latency
0
1
20
Write latency
0
1
21
SDRAM module attributes
Non - buffered
0
22
SDRAM device attributes : general
0E
E
23
SDRAM cycle time. CAS latency = 2
10ns
13ns
15ns
A0
D0
F0
24
SDRAM access from clock. CAS latency = 2
6ns
7ns
8ns
60
70
80
25
SDRAM cycle time. CAS latency = 1
N/A
0
26
SDRAM access time from clock CAS latency = 1
N/A
0
27
Min. row precharge time
20ns
26ns
14
1A
28
Min. row active to row active
20ns
14
29
Min. RAS to CAS delay
20ns
26ns
14
1A
30
Min. RAS pulse width
50ns
60ns
32
3C
31
Module bank density
16Mb
4
32
Command and address singnal input setup time
2ns
N/A
20
FF
33
Command and address singnal input hold time
1ns
N/A
10
FF
34
Data singnal input setup time
2ns
N/A
20
FF
35
Data singnal input hold time
1ns
N/A
10
FF
36 ~ 61 Superset Information
None
FF
62
SPD data revision code
Rev.1.2 Rev.1.2 Rev.1
12
1
63
Checksum for bytes 0-62
Checksum data
DD
1D
0E
64
Manufacturer’s JEDEC ID code
Continuation code
7F
65
Manufacturer’s JEDEC ID code
Vanguard
29
66 - 71
Manufacturer’s JEDEC ID code
None
FF
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