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參數(shù)資料
| 型號(hào)： | MC-4516DC72 |
| 廠商： | NEC Corp. |
| 英文描述： | 16 M-Word By 72-Bit Synchronous Dynamic RAM Module(同步動(dòng)態(tài)RAM 模塊) |
| 中文描述： | 16米，由72個(gè)字位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器模塊（同步動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁(yè)數(shù)： | 15/24頁(yè) |
| 文件大?。?/td> | 211K |
| 代理商： | MC-4516DC72 |
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15
MC-4516DC72
[ MC-4516DC72-A10B ]
(1/2)
Byte No.
Function Described
Hex
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Notes
0
Defines the number of bytes written into
serial PD memory
80H
1
0
0
0
0
0
0
0
128 bytes
1
Total number of bytes of serial PD memory
08H
0
0
0
0
1
0
0
0
256 bytes
2
Fundamental memory type
04H
0
0
0
0
0
1
0
0
SDRAM
3
Number of rows
0CH
0
0
0
0
1
1
0
0
12 rows
4
Number of columns
09H
0
0
0
0
1
0
0
1
9 columns
5
Number of module banks
02H
0
0
0
0
0
0
1
0
2 banks
6
Data width
48H
0
1
0
0
1
0
0
0
72 bits
7
Data width (continued)
00H
0
0
0
0
0
0
0
0
0
8
Voltage interface
01H
0
0
0
0
0
0
0
1
LVTTL
9
CL = 3 Cycle time
A0H
1
0
1
0
0
0
0
0
10 ns
10
CL =3 Access time
75H
0
1
1
1
0
1
0
1
7.5 ns
11
DIMM configuration type
02H
0
0
0
0
0
0
1
0
ECC
12
Refresh rate/type
80H
1
0
0
0
0
0
0
0
Normal
13
SDRAM width
08H
0
0
0
0
1
0
0
0
×
8
14
Error checking SDRAM width
08H
0
0
0
0
1
0
0
0
×
8
15
Minimum clock delay
01H
0
0
0
0
0
0
0
1
1 clock
16
Burst length supported
8FH
1
0
0
0
1
1
1
1
1,
2,
4,
8,
F
17
Number of banks on each SDRAM
04H
0
0
0
0
0
1
0
0
4 banks
18
/CAS latency supported
06H
0
0
0
0
0
1
1
0
2, 3
19
/CS latency supported
01H
0
0
0
0
0
0
0
1
0
20
/WE latency supported
01H
0
0
0
0
0
0
0
1
0
21
SDRAM module attributes
16H
0
0
0
1
0
1
1
0
Registered
22
SDRAM device attributes : General
1EH
0
0
0
1
1
1
1
0
23
CL = 2 Cycle time
F0H
1
1
1
1
0
0
0
0
15 ns
24
CL = 2 Access time
85H
1
0
0
0
0
1
0
1
8.5 ns
25 - 26
00H
0
0
0
0
0
0
0
0
27
t
RP(MIN.)
1EH
0
0
0
1
1
1
1
0
30 ns
28
t
RRD(MIN.)
14H
0
0
0
1
0
1
0
0
20 ns
29
t
RCD(MIN.)
1EH
0
0
0
1
1
1
1
0
30 ns
30
t
RAS(MIN.)
3CH
0
0
1
1
1
1
0
0
60 ns
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