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參數(shù)資料
| 型號(hào)： | MC-454AD645 |
| 廠商： | NEC Corp. |
| 英文描述： | 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動(dòng)態(tài)RAM 模塊) |
| 中文描述： | 4支M - 64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） |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 184K |
| 代理商： | MC-454AD645 |
13
MC-454AD645
Serial PD
[MC-454AD645F]
(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
Fundamental memory type
08H
0
0
0
0
1
0
0
0
256 bytes
2
04H
0
0
0
0
0
1
0
0
SDRAM
3
Number of rows
0BH
0
0
0
0
1
0
1
1
11 rows
4
Number of columns
09H
0
0
0
0
1
0
0
1
9 columns
5
Number of banks
02H
0
0
0
0
0
0
1
0
2 banks
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
MC-454AD645F-A80
80H
1
0
0
0
0
0
0
0
8 ns
MC-454AD645F-A10
A0H
1
0
1
0
0
0
0
0
10 ns
MC-454AD645F-A12
C0H
1
1
0
0
0
0
0
0
12 ns
10
CL = 3 access time
MC-454AD645F-A80
60H
0
1
1
0
0
0
0
0
6 ns
MC-454AD645F-A10
70H
0
1
1
1
0
0
0
0
7 ns
MC-454AD645F-A12
80H
1
0
0
0
0
0
0
0
8 ns
11
DIMM configuration type
00H
0
0
0
0
0
0
0
0
None
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
00H
0
0
0
0
0
0
0
0
None
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
02H
0
0
0
0
0
0
1
0
2 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
MC-454AD645F-A80
C0H
1
1
0
0
0
0
0
0
12 ns
MC-454AD645F-A10
D0H
1
1
0
1
0
0
0
0
13 ns
MC-454AD645F-A12
F0H
1
1
1
1
0
0
0
0
15 ns
24
CL = 2 access time
MC-454AD645F-A80
70H
0
1
1
1
0
0
0
0
7 ns
MC-454AD645F-A10
80H
1
0
0
0
0
0
0
0
8 ns
MC-454AD645F-A12
90H
1
0
0
1
0
0
0
0
9 ns
25-26
00H
0
0
0
0
0
0
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC-454CB645 | 4M-Word By 64-BIT Dynamic RAM Module(4M×64位動(dòng)態(tài)RAM模塊) |
| MC-454CB646 | 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動(dòng)態(tài)RAM 模塊) |
| MC-454CB64S | 4M-Word By 64-BIT Dynamic RAM Module(動(dòng)態(tài)RAM模塊) |
| MC-4564DC726 | 64M-Word By 72-BIT Dynamic RAM Module(動(dòng)態(tài)RAM模塊) |
| MC-4564EC726 | 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC-454AD646 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454CB645 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454CB645FA-A10B | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454CB645LFA-A10B | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC4556 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL OPERATIONAL AMPLIFIER |
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