mt18vddt12872phg-335 Micron Semiconductor Products, mt18vddt12872phg-335 Datasheet - Page 27

• Manufacturer Part Number: mt18vddt12872phg-335
• Description: 1gb X72, Ecc, Pll 200-pin Ddr Sdram Sodimm
• Manufacturer: Micron Semiconductor Products

Table 20: Serial Presence- Detect Matrix (Continued)
“1”/”0”: Serial Data, “driven to HIGH”/”driven to LOW”
NOTE:
pdf: 09005aef81697898/source: 09005aef8169786e
DD18C128x72PHG.fm - Rev. A 10/04 EN
1. Device latencies used for SPD values.
2. The value of
3. The JEDEC SPD specification allows fast or slow slew rate values for these bytes. The worst-case (slow slew rate) value is
4. The value of
99-127 Manufacturer-Specific Data (RSVD)
48–61
BYTE
36-40
65-71
73-90
95-98
represented here. Systems requiring the fast slew rate setup and hold values are supported, provided the faster mini-
mum slew rate is met.
SDRAM device specification is 15ns.
33
34
35
41
42
43
44
45
46
47
62
63
64
72
91
92
93
94
Address and Command Hold Time,
(see note 3)
Data/ Data Mask Input Setup Time,
Data/ Data Mask Input Hold Time,
Reserved
Minimum Active Auto Refresh Time,
Minimum Auto Refresh to Active/Auto Refresh Command
Period,
SDRAM Device Max Cycle Time,
SDRAM Device Max DQS–DQ Skew Time,
SDRAM Device Max Read Data Hold Skew Factor,
Reserved
DIMM Height
Reserved
SPD Revision
Checksum for Bytes 0–62
Manufacturer’s JEDEC ID Code
Manufacturer’s JEDEC ID Code (Continued)
Manufacturing Location
Module Part Number (ASCII)
PCB Identification Code
Identification Code (Continued)
Year of Manufacture in BCD
Week of Manufacture in BCD
Module Serial Number
t
RAS used for -262/-26A/-265 modules is calculated from
t
RP,
t
RFC
t
RCD, and
t
DESCRIPTION
RAP for -335 modules indicated as 18ns to align with industry specifications; actual DDR
t
CK
t
t
DH
MAX
t
IH
DS
t
RC
t
DQSQ
t
QHS
27
200-PIN DDR SDRAM SODIMM
Micron Technology, Inc., reserves the right to change products or specifications without notice.
0.75ns (-262/-26A/-265)
0.5ns (-262/-26A/-265)
0.5ns (-262/-26A/-265)
0.5ns (-262/-26A/-265)
75ns (-262/-26A/-265)
13ns (-262/-26A/-265)
t
1ns (-262/-26A/-265)
ENTRY (VERSION)
RC -
65ns (-26A/-265)
60ns (-335/-262)
0.45ns (-335)
0.45ns (-335)
0.40ns (-335)
0.8ns (-335)
0.5ns (-335)
72ns (-335)
12ns (-335)
Release 1.0
t
RP. Actual device spec value is 40 ns.
MICRON
01–12
-26A
-335
-262
-265
1–9
0
1GB (x72, ECC, PLL)
©2004 Micron Technology, Inc. All rights reserved.
MT18VDDT12872PH
Variable Data
Variable Data
Variable Data
Variable Data
01–0C
01–09
A0
2D
80
45
50
45
50
00
3C
41
48
4B
30
34
32
55
75
00
01
00
10
12
2C
00
00
7F
3F
6F
–