mt18htf25672ay-80e Micron Semiconductor Products, mt18htf25672ay-80e Datasheet - Page 16

• Manufacturer Part Number: mt18htf25672ay-80e
• Description: 512mb, 1gb, 2gb, 4gb X72, Dr, Ecc 240-pin Ddr2 Sdram Udimm
• Manufacturer: Micron Semiconductor Products

Table 18:
PDF: 09005aef80e8ad4d/Source: 09005aef80e785e6
HTF18C64_128_256_512x72A.fm - Rev. H 5/08 EN
Byte
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
MIN row precharge time,
MIN row active-to-row active,
MIN RAS#-to-CAS# delay,
MIN active-to-precharge time,
Module rank density
Address and command setup time,
Address and command hold time,
Data/data mask input setup time,
Data/data mask input hold time,
Write recovery time,
WRITE-to-READ command delay,
READ-to-PRECHARGE command delay,
t
Memory analysis probe
Extension for bytes 41 and 42
MIN active-to-active/refresh time,
MIN AUTO REFRESH to ACTIVE/
AUTO REFRESH command period,
SDRAM device MAX cycle time,
SDRAM device MAX DQS–DQ skew time,
t
SDRAM device MAX read data hold skew
factor,
PLL relock time
RTP
DQSQ
Serial Presence-Detect Matrix (continued)
t
QHS
Description
512MB, 1GB, 2GB, 4GB (x72, DR, ECC) 240-Pin DDR2 SDRAM UDIMM
t
WR
t
t
RCD
RP
t
t
RRD
RAS
t
CK(MAX)
t
t
DH
WTR
t
t
t
t
DS
RC
RFC
IH
t
IS
b
b
b
2
b
A
Entry (Version)
-80E/-667/-53E
-800/-667/-53E
512MB, 1GB
-800/-667
-53E/-40E
-800/-667
-53E/-40E
-667/-53E
-80E/-800
-80E/-800
-80E/-800
-667/-53E
-80E/-800
-800/-40E
-800/-667
-53E/-40E
-80E/-800
-80E/-800
-800-80E
256MB,
16
-80E
-80E
-40E
-667
-53E
-40E
-667
-53E
-40E
-40E
-667
-53E
-40E
-80E
-80E
-40E
-667
-53E
-40E
-667
-53E
-40E
N/A
–
–
–
–
–
Micron Technology, Inc., reserves the right to change products or specifications without notice.
512MB
– /1E/1E
–/3C/3C
–/3C
–/3C
–/00
2D
2D
3C
3C
3C
4B
1E
28
40
20
25
35
27
37
47
10
15
17
22
27
28
1E
00
00
37
80
18
1E
23
22
28
00
–
–
–
–
–
–
–
–
–
–
–
1
1GB
2D
2D
2D
3C
3C
3C
3C
3C
3C
32
1E
32
28
80
17
20
25
35
25
27
37
47
05
10
15
12
17
22
27
1E
28
1E
00
30
00
00
39
37
69
80
14
18
1E
23
1E
22
28
00
Serial Presence-Detect
©2003 Micron Technology, Inc. All rights reserved.
2GB
2D
2D
2D
32
3C
3C
1E
32
3C
3C
28
01
17
20
25
35
25
27
37
47
05
10
15
12
17
22
27
3C
1E
28
1E
00
36
06
06
39
3C
37
7F
80
14
18
1E
23
1E
22
28
00
4GB
2D
2D
2D
32
3C
3C
1E
32
3C
3C
28
02
17
20
25
35
25
27
37
47
05
10
15
12
17
22
27
3C
1E
28
1E
00
36
06
06
39
3C
37
C5
80
14
18
1E
23
1E
22
28
00