HYS64T256020EU-25F-B Datasheet, PDF (36/60 Pages) Qimonda AG – 240-Pin unbuffered DDR2 SDRAM Modules

Internet Data Sheet
HYS[64/72]T256020EU-[25F/2.5/3/3S/3.7]-B
Unbuffered DDR2 SDRAM Module
Product Type
Organization
Label Code
JEDEC SPD Revision
Byte#
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Description
Supported CAS Latencies
DIMM Mechanical Characteristics
DIMM Type Information
DIMM Attributes
Component Attributes
t_CK @ CL_MAX -1 (Byte 18) [ns]
t_AC SDRAM @ CL_MAX -1 [ns]
t_CK @ CL_MAX -2 (Byte 18) [ns]
t_AC SDRAM @ CL_MAX -2 [ns]
t_RP.MIN [ns]
t_RRD.MIN [ns]
t_RCD.MIN [ns]
t_RAS.MIN [ns]
Module Density per Rank
t_AS.MIN and t_CS.MIN [ns]
t_AH.MIN and t_CH.MIN [ns]
t_DS.MIN [ns]
t_DH.MIN [ns]
t_WR.MIN [ns]
t_WTR.MIN [ns]
t_RTP.MIN [ns]
Analysis Characteristics
t_RC and t_RFC Extension
t_RC.MIN [ns]
t_RFC.MIN [ns]
t_CK.MAX [ns]
t_DQSQ.MAX [ns]
t_QHS.MAX [ns]
PLL Relock Time
T_CASE.MAX Delta / ∆T_4R4W Delta
Psi(T-A) DRAM
∆T₀ (DT0)
∆T_2N (DT2N, UDIMM) or ∆T_2Q (DT2Q, RDIMM)
HYS64T256020EU–25F–B HYS72T256020EU–25F–B
2 GByte
2 GByte
×64
×72
2 Ranks (×8)
2 Ranks (×8)
PC2–6400U–555
PC2–6400E–555
Rev. 1.2
Rev. 1.2
HEX
70
00
02
00
07
25
40
3D
50
32
1E
32
2D
01
17
25
05
12
3C
1E
1E
00
36
39
7F
80
14
1E
00
57
60
5F
40
HEX
70
00
02
00
07
25
40
3D
50
32
1E
32
2D
01
17
25
05
12
3C
1E
1E
00
36
39
7F
80
14
1E
00
57
60
5F
40
Rev. 1.0, 2006-10
36
10262006-SX8C-DEY8