Internet Data Sheet
HYS[64/72]T[32/64/128]xx0HU–[3/3S/3.7/5]–A
Unbuffered DDR2 SDRAM Modules
Product Type
Organization
1 GByte
×64
1 GByte
×64
1 GByte
×72
2 Ranks (×8)
2 Ranks (×8)
2 Ranks (×8)
Label Code
PC2–4200U–444 PC2–4200U–444 PC2–4200E–444
JEDEC SPD Revision
Rev. 1.1
HEX
Rev. 1.2
HEX
Rev. 1.1
HEX
Byte#
Description
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
t
t
t
t
t
t
t
AC SDRAM @ CLMAX -1 [ns]
CK @ CLMAX -2 (Byte 18) [ns]
AC SDRAM @ CLMAX -2 [ns]
RP.MIN [ns]
50
50
60
3C
1E
3C
2D
80
25
37
10
22
3C
1E
1E
00
00
3C
69
80
1E
28
00
51
78
3F
50
50
60
3C
1E
3C
2D
80
25
37
10
22
3C
1E
1E
00
00
3C
69
80
1E
28
00
51
78
3F
50
50
60
3C
1E
3C
2D
80
25
37
10
22
3C
1E
1E
00
00
3C
69
80
1E
28
00
51
78
3F
RRD.MIN [ns]
RCD.MIN [ns]
RAS.MIN [ns]
Module Density per Rank
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)
Rev. 1.41, 2007-05
58
03292006-EZUJ-JY4S