Internet Data Sheet
HYS[64/72]D[32/64/128]xxx[G/H]U–[5/6]–B
Unbuffered DDR SDRAM Modules
Product Type
Organization
512MB
512MB
1 GByte
1 GByte
×64
×72
×64
×72
1 Rank (×8) 1 Rank (×8) 2 Ranks (×8) 2 Ranks (×8)
Label Code
PC2700U–
25330
PC2700U–
25330
PC2700U–
25330
PC2700U–
25330
JEDEC SPD Revision
Rev. 0.0
HEX
Rev. 0.0
HEX
Rev. 0.0
HEX
Rev. 0.0
HEX
Byte#
Description
23
24
25
26
27
28
29
30
31
32
33
34
35
t
t
t
t
t
t
t
t
CK @ CLmax -0.5 (Byte 18) [ns]
AC SDRAM @ CLmax -0.5 [ns]
CK @ CLmax-1 (Byte 18) [ns]
AC SDRAM @ CLmax -1 [ns]
RPmin [ns]
75
70
00
00
48
30
48
2A
80
75
75
45
45
00
3C
48
30
2D
55
00
00
00
00
42
7F
7F
75
70
00
00
48
30
48
2A
80
75
75
45
45
00
3C
48
30
2D
55
00
00
00
00
54
7F
7F
75
70
00
00
48
30
48
2A
80
75
75
45
45
00
3C
48
30
2D
55
00
00
00
00
43
7F
7F
75
70
00
00
48
30
48
2A
80
75
75
45
45
00
3C
48
30
2D
55
00
00
00
00
55
7F
7F
RRDmin [ns]
RCDmin [ns]
RASmin [ns]
Module Density per Rank
tAS, CS [ns]
tAH, CH [ns]
DS [ns]
DH [ns]
t
t
t
t
36 - 40 Not used
41
42
43
44
45
46
47
t
t
t
t
t
RCmin [ns]
RFCmin [ns]
CKmax [ns]
DQSQmax [ns]
QHSmax [ns]
Not used
DIMM PCB Height
48 - 61 Not used
62
63
64
65
SPD Revision
Checksum of Byte 0-62
Manufacturer’s JEDEC ID Code (1)
Manufacturer’s JEDEC ID Code (2)
Rev. 1.22, 2007-01
25
03292006-CXBY-V2JX
QIMONDA [ QIMONDA AG ]
