參數(shù)資料
型號： MC-424LFG641
廠商： NEC Corp.
英文描述： 64 bits dynamic RAM modules(64 位動(dòng)態(tài)RAM 模塊)
中文描述： 64位動(dòng)態(tài)RAM模塊（64位動(dòng)態(tài)內(nèi)存模塊）
文件頁數(shù)： 21/44頁
文件大?。?/td> 368K
代理商： MC-424LFG641
21
MC-424LFG641
[ MC-424LFG641FA ]
Byte No.
Function Described
Hex
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Notes
0
1
2
3
4
5
6
7
8
9
Number of serial PD bytes
Serial memory
Fundamental memory type
Number of rows
Number of columns
Number of banks
Data width
Data width (continued)
Voltage interface
/RAS access time
5DH
08H
02H
0CH
0AH
01H
40H
00H
01H
3CH
46H
11H
14H
00H
00H
04H
00H
00H
01H
11H
1EH
10H
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
1
1
1
1
1
0
1
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
1
0
0
0
0
0
1
1
0
1
0
0
1
0
0
0
0
1
0
0
0
1
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
1
1
0
0
93 bytes
256 bytes
EDO
12 rows
10 columns
1 bank
64 bits
0
LVTTL
60 ns
70 ns
17 ns
20 ns
None
Normal
×
4
None
None
1
-A60
-A70
-A60
-A70
10
/CAS access time
11
12
13
14
Error detection/correction
Refresh period
DRAM width
Error checking DRAM width
15 - 61
62
63
SPD revision
Checksum for bytes 0 - 62
-A60
-A70
64
Manufacture’s JEDEC ID code per
JEP-106E
65-71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
00H
0
0
0
0
0
0
0
0
Manufacturing location
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
Part name
34H
32H
34H
4CH
46H
47H
36H
34H
31H
46H
41H
2DH
41H
36H
37H
30H
20H
20H
20H
31H
20H
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
1
1
1
0
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
1
1
0
0
0
0
1
1
1
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
1
1
1
1
1
1
0
1
0
1
0
1
1
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
1
1
0
1
0
0
0
0
1
0
-A60
-A70
87
88
89
90
91
92
Part name
Part name
Part name
Part name
PCB revision code
Blank
Remark
1 : High level (Serial data), 0 : Low level (Serial data)
相關(guān)PDF資料
PDF描述
MC-428LFC72 3.3 V Operation 4M-Word By 64-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊)
MC-428LFF721 3.3 V Operation 16M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊)
MC-428LFG641 3.3 V Operation 8M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的DRAM模塊)
MC-428LFH641 3.3 V Operation 8M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的DRAM模塊)
MC-42S4LFG64S 3.3 V Operation 16M-Word By 65-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊)
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