參數(shù)資料
型號(hào): HB52D48GB
廠(chǎng)商: Hitachi,Ltd.
英文描述: 32 MB Unbuffered SDRAM Micro DIMM(32MB 未緩沖同步DRAM DIMM)
中文描述: 32兆微型無(wú)緩沖SDRAM的內(nèi)存(32MB的未緩沖同步的DRAM內(nèi)存)
文件頁(yè)數(shù): 5/24頁(yè)
文件大?。?/td> 95K
代理商: HB52D48GB
HB52D48GB-F
5
Serial PD Matrix
*
1
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
0
Number of bytes used by
module manufacturer
1
0
0
0
0
0
0
0
80
128
1
Total SPD memory size
0
0
0
0
1
0
0
0
08
256 byte
2
Memory type
0
0
0
0
0
1
0
0
04
SDRAM
3
Number of row addresses bits 0
0
0
0
1
1
0
0
0C
12
4
Number of column addresses
bits
0
0
0
0
1
0
0
0
08
8
5
Number of banks
0
0
0
0
0
0
0
1
01
1
6
Module data width
0
1
0
0
0
0
0
0
40
64
7
Module data width (continued) 0
0
0
0
0
0
0
0
00
0 (+)
8
Module interface signal levels
0
0
0
0
0
0
0
1
01
LVTTL
9
SDRAM cycle time
(highest
CE
latency)
10 ns
1
0
1
0
0
0
0
0
A0
CL = 3
10
SDRAM access from Clock
(highest
CE
latency)
6 ns
0
1
1
0
0
0
0
0
60
11
Module configuration type
0
0
0
0
0
0
0
0
00
Non parity
12
Refresh rate/type
1
0
0
0
0
0
0
0
80
Normal
(15.625
μ
s)
Self refresh
13
SDRAM width
0
0
0
1
0
0
0
0
10
4M
×
16
14
Error checking SDRAM width
0
0
0
0
0
0
0
0
00
15
SDRAM device attributes:
minimum clock delay for back-
to-back random column
addresses
0
0
0
0
0
0
0
1
01
1 CLK
16
SDRAM device attributes:
Burst lengths supported
1
0
0
0
1
1
1
1
8F
1, 2, 4, 8, full
page
17
SDRAM device attributes:
number of banks on SDRAM
device
0
0
0
0
0
1
0
0
04
4
18
SDRAM device attributes:
CE
latency
0
0
0
0
0
1
1
0
06
2, 3
19
SDRAM device attributes:
S
latency
0
0
0
0
0
0
0
1
01
0
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