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參數(shù)資料
| 型號： | MC-458CB64S |
| 廠商： | NEC Corp. |
| 英文描述： | Synchronous Dynamic RAM Module(同步動態(tài)RAM模塊) |
| 中文描述： | 同步動態(tài)隨機存儲器模塊（同步動態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 196K |
| 代理商： | MC-458CB64S |
14
MC-458CB64S
[MC-458CB64SA]
(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 banks
01H
0
0
0
0
0
0
0
1
1 bank
6
Data width
40H
0
1
0
0
0
0
0
0
64 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
-A80
80H
1
0
0
0
0
0
0
0
8 ns
-A10
A0H
1
0
1
0
0
0
0
0
10 ns
-A10B/-A10BL
A0H
1
0
1
0
0
0
0
0
10 ns
10
CL =3 Access time
-A80
60H
0
1
1
0
0
0
0
0
6 ns
-A10
60H
0
1
1
0
0
0
0
0
6 ns
-A10B/-A10BL
70H
0
1
1
1
0
0
0
0
7 ns
11
DIMM configuration type
00H
0
0
0
0
0
0
0
0
Non-parity
12
Refresh rate/type
80H
1
0
0
0
0
0
0
0
Normal
×
8
None
13
SDRAM width
08H
0
0
0
0
1
0
0
0
14
Error checking SDRAM width
00H
0
0
0
0
0
0
0
0
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
00H
0
0
0
0
0
0
0
0
22
SDRAM device attributes : General
0EH
0
0
0
0
1
1
1
0
23
CL = 2 Cycle time
-A80
A0H
1
0
1
0
0
0
0
0
10 ns
-A10
D0H
1
1
0
1
0
0
0
0
13 ns
-A10B/-A10BL
F0H
1
1
1
1
0
0
0
0
15 ns
24
CL = 2 Access time
-A80
60H
0
1
1
0
0
0
0
0
6 ns
-A10
70H
0
1
1
1
0
0
0
0
7 ns
-A10B/-A10BL
80H
1
0
0
0
0
0
0
0
8 ns
25-26
00H
0
0
0
0
0
0
0
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC458CB64SAA10B | 制造商:NEC Electronics Corporation 功能描述: |
| MC459 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 wide 3-2-2-3 input expander for and-or-invert gae |
| MC-45D16CA721 | 制造商:NEC 制造商全稱:NEC 功能描述:16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-45D16CA721KF-C75 | 制造商:NEC 制造商全稱:NEC 功能描述:16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-45D16CA721KF-C80 | 制造商:NEC 制造商全稱:NEC 功能描述:16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
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