Internet Data Sheet
HYS[64/72]T[32/64/128]xx0HU-[25F/2.5/3/3S/3.7/5]-B
Unbuffered DDR2 SDRAM Module
Product Type
Organization
256MB
512MB
512MB
1 GByte 1 GByte
×64
×64
×72
×64
×72
1 Rank
1 Rank
1 Rank
2 Ranks 2 Ranks
(×16)
(×8)
(×8)
(×8)
(×8)
Label Code
PC2–
6400U–
555
PC2–
6400U–
555
PC2–
6400E–
555
PC2–
6400U–
555
PC2–
6400E–
555
JEDEC SPD Revision
Rev. 1.2 Rev. 1.2 Rev. 1.2 Rev. 1.2 Rev. 1.2
Byte#
Description
HEX
HEX
HEX
HEX
HEX
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
∆T4R (DT4R) / ∆T4R4W Sign (DT4R4W)
∆T5B (DT5B)
68
22
3D
00
00
00
00
12
52
7F
7F
7F
7F
7F
51
00
00
xx
5A
22
27
00
00
00
00
12
37
7F
7F
7F
7F
7F
51
00
00
xx
5A
22
27
00
00
00
00
12
49
7F
7F
7F
7F
7F
51
00
00
xx
5A
22
27
00
00
00
00
12
38
7F
7F
7F
7F
7F
51
00
00
xx
5A
22
27
00
00
00
00
12
4A
7F
7F
7F
7F
7F
51
00
00
xx
∆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
33
32
30
36
34
54
36
34
30
37
32
54
36
34
30
36
34
54
31
32
38
37
32
54
31
32
38
Product Type, Char 2
Product Type, Char 3
Product Type, Char 4
Product Type, Char 5
Product Type, Char 6
Rev. 1.3, 2006-12
46
03292006-6GMD-RSFT
QIMONDA [ QIMONDA AG ]
