MT8VDDT12832UY-6 Micron Semiconductor Products, MT8VDDT12832UY-6 Datasheet - Page 35

• Manufacturer Part Number: MT8VDDT12832UY-6
• Description: 128mb, 256mb, 512mb X32, Dr 100-pin Ddr Udimm
• Manufacturer: Micron Semiconductor Products

Table 20:
pdf: 09005aef80745603, source: 09005aef807455eb
DD8C32_64_128x32UG_2.fm - Rev. G 5/05 EN
99-127 Manufacturer-Specific Data (RSVD)
48–61 Reserved
36-40 Reserved
65-71 Manufacturer’s JEDEC ID Code
73-90 Module Part Number (ASCII)
95-98 Module Serial Number
Byte
30
31
32
33
34
35
41
42
43
44
45
46
47
62
63
64
72
91
92
93
94
Minimum RAS# Pulse Width,
note 1)
Module Rank Density
Address and Command Setup Time,
(See note 2)
Address and Command Hold Time,
(See note 2)
Data/Data Mask Input Setup Time,
Data/Data Mask Input Hold Time,
Min 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,
t
SDRAM Device Max Read Data Hold
Skew Factor,
Reserved
DIMM Height
SPD Revision
Checksum For Bytes 0–62
Manufacturer’s JEDEC ID Code
Manufacturing Location
Pcb Identification Code
Identification Code (Continued)
Year Of Manufacturein BCD
Week Of Manufacture in BCD
DQSQ
Serial Presence-Detect Matrix (Continued)
“1”/“0”: Serial Data, “driven to HIGH”/“driven to LOW”; notes appear on page 35
t
Description
QHS
Notes: 1. The value of
2. The JEDEC SPD specification allows fast or slow slew rate values for these bytes. The worst-
3. The value of
value is 40 ns.
case (slow slew rate) value is represented here. Systems requiring the fast slew rate setup
and hold values are supported, provided the faster minimum slew rate is met.
specifications; actual DDR SDRAM device specification is 15ns.
t
RFC
t
RAS (See
t
RC
t
CK
t
DH
t
t
MAX
DS
IH
t
IS
t
t
RAS used for -75 modules is calculated from
RP,
128MB, 256MB, 512MB: (x32, DR) 100-Pin DDR UDIMM
Entry (Version)
t
0.75ns (-75Z/-75)
1.0ns (-75Z/-75)
1.0ns (-75Z/-75)
0.5ns (-75Z/-75)
0.5ns (-75Z/-75)
0.5ns (-75Z/-75)
RCD and
45ns (-75Z/-75)
64MB, 128MB,
65ns (-75Z/-75)
75ns (-75Z/-75)
13ns (-75Z/-75)
(Continued)
Release 1.0
0.45ns (-6)
0.45ns (-6)
0.45ns (-6)
0.55ns (-6)
0.8ns (-6)
0.8ns (-6)
42ns (-6)
60ns (-6)
72ns (-6)
12ns (-6)
MICRON
256MB
01–12
-75Z
-75
1-9
-6
0
t
35
RAP for -335 modules indicated as 18ns to align with industry
MT8VDDT3232U MT8VDDT6432U MT8VDDT12832U
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Variable Data
Variable Data
Variable Data
Variable Data
01–0C
01-09
2A
2D
A0
A0
2D
D5
3C
4B
C5
2C
10
80
80
45
50
45
50
00
41
48
30
34
32
55
75
00
01
00
10
95
00
FF
–
Variable Data
Variable Data
Variable Data
Variable Data
t
RC -
Serial Presence Detect
©2004, 2005 Micron Technology, Inc. All rights reserved.
01–0C
01-09
2A
2D
A0
A0
2D
D8
A8
3C
4B
10
2C
20
80
80
45
50
45
50
00
41
48
30
34
32
55
75
00
01
00
E8
FF
00
–
t
RP. Actual device spec.
Variable Data
Variable Data
Variable Data
Variable Data
01–0C
01-09
2A
2D
A0
A0
2D
40
80
80
45
50
45
50
00
3C
41
48
4B
30
34
32
55
75
00
01
00
10
09
C9
2C
00
F9
FF
–