參數(shù)資料
型號(hào): MC-458CB64ESB-A10B
廠商: NEC Corp.
英文描述: 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM
中文描述: 800萬(wàn)字,64位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器模塊以便內(nèi)存
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 126K
代理商: MC-458CB64ESB-A10B
Data Sheet M12263EJAV0DS00
10
MC-458CB64ESB, 458CB64PSB
Serial PD
(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
-A10B
A0H
1
0
1
0
0
0
0
0
10 ns
10
CL =3 Access time
-A10B
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
×
16
None
13
SDRAM width
10H
0
0
0
1
0
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
-A10B
F0H
1
1
1
1
0
0
0
0
15 ns
24
CL = 2 Access time
-A10B
80H
1
0
0
0
0
0
0
0
8 ns
25-26
00H
0
0
0
0
0
0
0
0
27
t
RP(MIN.)
-A10B
1EH
0
0
0
1
1
1
1
0
30 ns
28
t
RRD(MIN.)
-A10B
14H
0
0
0
1
0
1
0
0
20 ns
29
t
RCD(MIN.)
-A10B
1EH
0
0
0
1
1
1
1
0
30 ns
30
t
RAS(MIN.)
-A10B
3CH
0
0
1
1
1
1
0
0
60 ns
#
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