Internet Data Sheet
HYS64T[32/64/128]xxxEDL–[25F/…/3.7](–)B2
Small Outlined DDR2 SDRAM Modules
Product Type
Organization
256MB
256MB
512MB
512MB
×64
×64
×64
×64
1 Rank (×16) 1 Rank (×16) 2 Ranks
(×16)
2 Ranks
(×16)
Label Code
PC2–
PC2–
PC2–
PC2–
6400S–555 6400S–555 6400S–555 6400S–555
JEDEC SPD Revision
Rev. 1.2
HEX
Rev. 1.2
HEX
Rev. 1.2
HEX
Rev. 1.2
HEX
Byte#
Description
RAS.MIN [ns]
Module Density per Rank
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
t
2D
40
17
25
05
12
3C
1E
1E
00
30
39
69
80
14
1E
00
56
7A
7F
3B
36
2E
5A
2D
40
17
25
05
12
3C
1E
1E
00
30
39
69
80
14
1E
00
56
7A
7F
3B
36
2E
5A
2D
40
17
25
05
12
3C
1E
1E
00
30
39
69
80
14
1E
00
56
7A
7F
3B
36
2E
5A
2D
40
17
25
05
12
3C
1E
1E
00
30
39
69
80
14
1E
00
56
7A
7F
3B
36
2E
5A
t
t
t
t
t
t
t
AS.MIN and tCS.MIN [ns]
AH.MIN and tCH.MIN [ns]
DS.MIN [ns]
DH.MIN [ns]
WR.MIN [ns]
WTR.MIN [ns]
RTP.MIN [ns]
Analysis Characteristics
t
t
t
t
t
t
RC and tRFC Extension
RC.MIN [ns]
RFC.MIN [ns]
CK.MAX [ns]
DQSQ.MAX [ns]
QHS.MAX [ns]
PLL Relock Time
CASE.MAX Delta / ∆T4R4W Delta
T
Psi(T-A) DRAM
∆T0 (DT0)
∆T2N (DT2N, UDIMM) or ∆T2Q (DT2Q, RDIMM)
∆T2P (DT2P)
∆T3N (DT3N)
∆T3P.fast (DT3P fast)
Rev. 1.1, 2007-01
37
08212006-PKYN-2H1B