參數(shù)資料
型號: HB52E89EM
廠商: Hitachi,Ltd.
英文描述: 64 MB Unbuffered SDRAM DIMM(64MB 未緩沖同步DRAM DIMM)
中文描述: 64 MB的無緩沖SDRAM的內(nèi)存(64MB的未緩沖同步的DRAM內(nèi)存)
文件頁數(shù): 9/64頁
文件大小: 2741K
代理商: HB52E89EM
HB52E88EM-F, HB52E89EM-F, HB52E168EN-F, HB52E169EN-F
9
23
SDRAM cycle time
(2nd highest CE latency)
(-A6F) 10 ns
SDRAM cycle time
(2nd highest CE latency)
(-B6F) Undefined
SDRAM access from Clock
(2nd highest CE latency)
(-A6F) 6 ns
SDRAM access from Clock
(2nd highest CE latency)
(-B6F) Undefined
SDRAM cycle time
(3rd highest CE latency)
Undefined
SDRAM access from Clock
(3rd highest CE latency)
Undefined
Minimum row precharge time 0
Row active to row active min 0
RE to CE delay min
Minimum RE pulse width
Density of each bank on
module
(HB52E88EM/89EM)
(HB52E168EN/169EN)
1
0
1
0
0
0
0
0
A0
CL = 2
0
0
0
0
0
0
0
0
00
24
0
1
1
0
0
0
0
0
60
CL = 2
0
0
0
0
0
0
0
0
00
25
0
0
0
0
0
0
0
0
00
26
0
0
0
0
0
0
0
0
00
27
28
29
30
31
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
0
0
0
0
14
14
14
32
20 ns
20 ns
20 ns
50 ns
1 bank
64 M byte
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
10
10
2 bank
64 M byte
2.0 ns
32
Address and command
signal input setup time
Address and command
signal input hold time
Data signal input setup time
Data signal input hold time
Superset information
0
0
1
0
0
0
0
0
20
33
0
0
0
1
0
0
0
0
10
1.0 ns
34
35
36 to
61
62
63
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
20
10
00
2.0 ns
1.0 ns
Future use
SPD data revision code
Checksum for bytes 0 to 62
(HB52E88EM-A6F)
(HB52E88EM-B6F)
(HB52E89EM-A6F)
(HB52E89EM-B6F)
(HB52E168EN-A6F)
(HB52E168EN-B6F)
(HB52E169EN-A6F)
(HB52E169EN-B6F)
Manufacturer’s JEDEC ID
code
0
0
0
1
0
0
1
0
12
Rev.1.2A
0
0
0
0
0
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
0
0
1
1
0
0
0
0
0
0
0
1
0
0
1
0
1
1
1
1
0
1
1
0
1
1
0
1
0
0
1
1
1
1
1
1
0
0
0
0
1
05
03
17
15
06
04
18
16
07
5
3
23
21
6
4
24
22
HITACHI
64
Byte
No.
Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
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