參數(shù)資料
型號(hào): HB52RD168DB
廠商: Hitachi,Ltd.
英文描述: 128 MB Unbuffered SDRAM S.O.DIMM(128MB 未緩沖同步DRAM DIMM)
中文描述: 128 MB的無緩沖內(nèi)存的SODIMM(128MB的未緩沖同步的DRAM內(nèi)存)
文件頁數(shù): 6/67頁
文件大?。?/td> 623K
代理商: HB52RD168DB
HB52RD168DB-D
6
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
19
SDRAM device attributes:
S
latency
0
0
0
0
0
0
0
1
01
0
20
SDRAM device attributes:
W
latency
0
0
0
0
0
0
0
1
01
0
21
SDRAM module attributes
0
0
0
0
0
0
0
0
00
Non buffer
22
SDRAM device attributes:
General
0
0
0
0
1
1
1
0
0E
V
CC
±
10%
23
SDRAM cycle time
(2nd highest
CE
latency)
(-A6D/A6DL) 10 ns
1
0
1
0
0
0
0
0
A0
CL = 2
SDRAM cycle time
(2nd highest
CE
latency)
(-B6D/B6DL) Undefined
0
0
0
0
0
0
0
0
00
24
SDRAM access from Clock
(2nd highest
CE
latency)
(-A6D/A6DL) 6 ns
0
1
1
0
0
0
0
0
60
SDRAM access from Clock
(2nd highest
CE
latency)
(-B6D/B6DL) Undefined
0
0
0
0
0
0
0
0
00
25
SDRAM cycle time
(3rd highest
CE
latency)
Undefined
0
0
0
0
0
0
0
0
00
26
SDRAM access from Clock
(3rd highest
CE
latency)
Undefined
0
0
0
0
0
0
0
0
00
27
Minimum row precharge time
0
0
0
1
0
1
0
0
14
20 ns
28
Row active to row active min
RE
to
CE
delay min
Minimum
RE
pulse width
0
0
0
1
0
1
0
0
14
20 ns
29
0
0
0
1
0
1
0
0
14
20 ns
30
0
0
1
1
0
0
1
0
32
50 ns
31
Density of each bank on
module
0
0
1
0
0
0
0
0
20
128M byte
32
Address and command signal
input setup time
0
0
1
0
0
0
0
0
20
2.0 ns*
2
33
Address and command signal
input hold time
0
0
0
1
0
0
0
0
10
1.0 ns*
2
34
Data signal input setup time
0
0
1
0
0
0
0
0
20
3 ns*
2
35
Data signal input hold time
0
0
0
1
0
0
0
0
10
1.5 ns*
2
36 to 61 Superset information
0
0
0
0
0
0
0
0
00
Future use
62
SPD data revision code
0
0
0
1
0
0
1
0
12
Rev. 1.2A
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