HYS64T256020EU-25F-B Datasheet, PDF (52/60 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#
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
Description
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)
∆T_2P (DT2P)
∆T_3N (DT3N)
∆T_3P.fast (DT3P fast)
∆T_3P.slow (DT3P slow)
∆T_4R (DT4R) / ∆T_4R4W Sign (DT4R4W)
∆T_5B (DT5B)
∆T₇ (DT7)
Psi(ca) PLL
Psi(ca) REG
∆T_PLL (DTPLL)
∆T_REG (DTREG) / Toggle Rate
SPD Revision
HYS64T256020EU–3.7–B HYS72T256020EU–3.7–B
2 GByte
2 GByte
×64
×72
2 Ranks (×8)
2 Ranks (×8)
PC2–4200U–444
PC2–4200E–444
Rev. 1.2
Rev. 1.2
HEX
2D
01
25
37
10
22
3C
1E
1E
00
06
3C
7F
80
1E
28
00
52
60
37
2A
2B
20
35
21
36
22
25
00
00
00
00
12
HEX
2D
01
25
37
10
22
3C
1E
1E
00
06
3C
7F
80
1E
28
00
52
60
37
2A
2B
20
35
21
36
22
25
00
00
00
00
12
Rev. 1.0, 2006-10
52
10262006-SX8C-DEY8