mt18hvf25672pdy-800 Micron Semiconductor Products, mt18hvf25672pdy-800 Datasheet - Page 14

• Manufacturer Part Number: mt18hvf25672pdy-800
• Description: 1gb, 2gb X72, Ecc, Dr 240-pin Ddr2 Sdram Vlp Rdimm
• Manufacturer: Micron Semiconductor Products

Table 16:
PDF: 09005aef8286b286/Source: 09005aef8286b2d2
HVF18c128_256x72D.fm - Rev. A 4/07 EN
Byte
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
0
1
2
3
4
5
6
7
8
9
Number of SPD bytes used by Micron
Total number of bytes in SPD device
Fundamental memory type
Number of row addresses on SDRAM
Number of column addresses on SDRAM
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), or weak
driver and 50Ω ODT (03)
SDRAM cycle time,
SDRAM access from CK,
SDRAM cycle time,
SDRAM access from CK,
MIN row precharge time,
MIN row active-to-row active,
Serial Presence-Detect Matrix
t
t
t
Description
CK
CK, MAX CL - 1
CK, MAX CL - 2
t
t
AC, MAX CL - 1
AC, MAX CL - 2
t
t
AC
RP
1GB, 2GB (x72, ECC, DR) 240-Pin DDR2 SDRAM VLP RDIMM
t
RRD
14
-800/-667/-53E/-40E
17.9mm, dual rank
Registered DIMM
Entry (Version)
-53E/-40E (4, 3)
ECC and parity
-80E/-800/-667
DDR2 SDRAM
-800 (6, 5, 4)
-667 (5, 4, 3)
1 PLL, 2 Reg
7.81µs/SELF
Micron Technology, Inc., reserves the right to change products or specifications without notice.
-80E (5, 4)
SSTL 1.8V
-80E/-800
-80E/-800
-53E/-40E
-80E/-667
-53E/-40E
-80E/-800
-80E/-800
-53E/-40E
-80E/-800
-53E/-40E
4 or 8
-667
-53E
-40E
-667
-53E
-40E
-800
-667
-53E
-40E
-667
-667
-80E
ECC
128
256
4, 8
14
10
72
0
8
8
0
Serial Presence-Detect
00/3D
00/40
1GB
0A
3D
3D
80
08
08
0E
11
48
00
05
25
30
50
40
45
50
60
02
06
82
08
08
00
0C
04
30
70
38
18
01
01
05
03
01
30
50
40
45
50
60
50
00
45
00
32
3C
1E
©2007 Micron Technology, Inc. All rights reserved.
00/3D
00/40
2GB
0A
3D
3D
0C
3C
80
08
08
0E
11
48
00
05
25
30
50
40
45
50
60
02
06
82
08
08
00
08
30
70
38
18
01
01
05
03
01
30
50
40
45
50
60
50
00
45
00
32
1E