mt18hvs25672pky-53e Micron Semiconductor Products, mt18hvs25672pky-53e Datasheet - Page 14

• Manufacturer Part Number: mt18hvs25672pky-53e
• Description: 2gb, 4gb X72, Dr 244-pin Ddr2 Vlp Mini-rdimm
• Manufacturer: Micron Semiconductor Products

Table 15:
PDF: 09005aef8281e0a3/Source: 09005aef8281d7ea
HVS18C256_512x72PK.fm - Rev. A 8/07 EN
Byte
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
Description
Number of SPD bytes used by Micron
Total number of bytes in SPD device
Fundamental memory type
Number of row addresses on assembly
Number of column addresses on assembly
DIMM height and module ranks
Module data width
Reserved
Module voltage interface levels
SDRAM cycle time,
(CL = MAX value, see byte 18)
SDRAM access from clock,
(CL = MAX value, see byte 18)
Module configuration type
Refresh rate/type
SDRAM device width (primary SDRAM)
Error-checking SDRAM data width
Reserved
Burst lengths supported
Number of banks on SDRAM device
CAS latencies supported
Module thickness
DDR2 DIMM type
SDRAM module attributes
SDRAM device attributes: weak driver (01)
and 50Ω ODT (03)
SDRAM cycle time,
MAX CL - 1
SDRAM access from CK,
MAX CL - 1
SDRAM cycle time,
MAX CL - 2
SDRAM access from CK,
MAX CL - 2
MIN row precharge time,
MIN row active-to-row active,
MIN RAS#-to-CAS# delay,
MIN active-to-precharge time,
Serial Presence-Detect Matrix
t
t
t
CK
CK,
CK,
t
t
AC,
AC,
t
t
t
RCD
AC
RP
t
t
RRD
RAS
2GB, 4GB (x72, DR) 244-Pin DDR2 VLP Mini-RDIMM
14
18.2mm, dual rank
VLP Mini-RDIMM
Entry (Version)
Micron Technology, Inc., reserves the right to change products or specifications without notice.
ECC and parity
DDR2 SDRAM
-667 (5, 4, 3)
1 PLL, 1 Reg
7.81µs/SELF
Registered
-80E (5, 4)
-53E (4, 3)
SSTL 1.8V
-80E/-667
-667/-53E
-667/-53E
80E/-667
14 or 15
-80E
-667
-53E
-80E
-667
-53E
-53E
-53E
-80E
-667
-53E
-80E
-667
-53E
-80E
-667
-53E
-80E
-80E
ECC
128
256
4, 8
10
72
0
8
8
0
8
–
–
–
Serial Presence-Detect
2GB
©2007 Micron Technology, Inc. All rights reserved.
0A
3D
3D
2D
80
08
08
0E
11
48
00
05
25
30
40
45
50
02
06
82
08
08
00
0C
08
30
38
18
01
10
04
03
01
50
40
45
50
00
50
00
00
45
00
32
3C
1E
32
3C
4GB
–/3D
–/03
0A
3D
2D
80
08
08
11
48
00
05
30
45
50
02
06
82
08
08
00
0C
08
38
18
01
10
04
01
50
45
50
50
00
45
00
3C
1E
3C
0F
–
–
–
–
–
–
–
–
1