Internet Data Sheet
HYS[64/72]T256020EU-[25F/2.5/3/3S/3.7]-B
Unbuffered DDR2 SDRAM Module
Product Type
Organization
HYS64T256020EU–25F–B HYS72T256020EU–25F–B
2 GByte
×64
2 GByte
×72
2 Ranks (×8)
PC2–6400U–555
Rev. 1.2
HEX
2 Ranks (×8)
PC2–6400E–555
Rev. 1.2
HEX
Label Code
JEDEC SPD Revision
Byte#
Description
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
∆T2P (DT2P)
2B
2E
49
21
4E
25
39
00
00
00
00
12
AE
7F
7F
7F
7F
7F
51
00
00
xx
2B
2E
49
21
4E
25
39
00
00
00
00
12
C0
7F
7F
7F
7F
7F
51
00
00
xx
∆T3N (DT3N)
∆T3P.fast (DT3P fast)
∆T3P.slow (DT3P slow)
∆T4R (DT4R) / ∆T4R4W Sign (DT4R4W)
∆T5B (DT5B)
∆T7 (DT7)
Psi(ca) PLL
Psi(ca) REG
∆TPLL (DTPLL)
∆TREG (DTREG) / Toggle Rate
SPD Revision
Checksum of Bytes 0-62
Manufacturer’s JEDEC ID Code (1)
Manufacturer’s JEDEC ID Code (2)
Manufacturer’s JEDEC ID Code (3)
Manufacturer’s JEDEC ID Code (4)
Manufacturer’s JEDEC ID Code (5)
Manufacturer’s JEDEC ID Code (6)
Manufacturer’s JEDEC ID Code (7)
Manufacturer’s JEDEC ID Code (8)
Module Manufacturer Location
Product Type, Char 1
36
34
54
32
35
36
30
32
30
45
55
37
32
54
32
35
36
30
32
30
45
55
Product Type, Char 2
Product Type, Char 3
Product Type, Char 4
Product Type, Char 5
Product Type, Char 6
Product Type, Char 7
Product Type, Char 8
Product Type, Char 9
Product Type, Char 10
Product Type, Char 11
Rev. 1.0, 2006-10
37
10262006-SX8C-DEY8
QIMONDA [ QIMONDA AG ]
