mt18lsdt6472ag-133 Micron Semiconductor Products, mt18lsdt6472ag-133 Datasheet - Page 22

• Manufacturer Part Number: mt18lsdt6472ag-133
• Description: 256mb X72, Ecc, Sr , 512mb X72, Ecc, Dr 168-pin Sdram Udimm
• Manufacturer: Micron Semiconductor Products

Table 22: Serial Presence-Detect Matrix
“1”/”0”: Serial data, “driven to HIGH”/”driven to LOW”; V
09005aef807b3709
SD9_18C32_64X72AG.fm - Rev. E 11/04 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 Bytes Used by Micron
Total Number of SPD Memory Bytes
Memory Type
Number of Row Addresses
Number of Column Addresses
Number of Module Ranks
Module Data Width
Module Data Width (Continued)
Module Voltage Interface Levels
SDRAM Cycle Time,
(CAS Latency = 3)
SDRAM Access From CLK,
(CAS Latency = 3)
Module Configuration Type
Refresh Rate/Type
SDRAM Width (Primary SDRAM)
Error-checking SDRAM Data Width
Minimum Clock Delay from Back-to-Back Random
Column Addresses,
Burst Lengths Supported
Number of Banks on SDRAM Device
CAS Latencies Supported
CS Latency
WE Latency
SDRAM Module Attributes
SDRAM Device Attributes: General
SDRAM Cycle Time ,
(CAS Latency = 2)
SDRAM Access from CLK,
(CAS Latency = 2)
SDRAM Cycle Time,
(CAS Latency = 1)
SDRAM Access from CLK,
(CAS Latency = 1)
Minimum Row Precharge Time,
Minimum Row Active to Row Active,
Minimum RAS# to CAS# Delay,
Minimum RAS# Pulse Width,
(See note 1)
t
CCD
t
t
t
CK
CK
CK
t
t
t
AC
AC
AC
t
RAS
t
RCD
t
RP
256MB (x72, ECC, SR), 512MB (x72, ECC, DR)
t
RRD
DD
22
= +3.3V ±0.3V
5.4ns (-13E/-133)
10ns (-133/-10E)
20ns (-133/-10E)
20ns (-133/-10E)
1, 2, 4, 8, PAGE
6ns (-133/-10E)
7.8125µs/SELF
UNBUFFERED
(VERSION)
5.4ns (-13E)
7.5ns (-133
7.5ns (13E)
15ns (-13E)
14ns (-13E)
15ns (-133)
20ns (-10E)
15ns (-13E)
45ns (-13E)
44ns (-133)
50ns (-10E)
7ns (-13E)
8ns (-10E)
6ns (-10E)
SDRAM
ENTRY
1 or 2
LVTTL
ECC
128
256
2, 3
13
10
72
0E
0
8
8
1
4
0
0
Micron Technology, Inc., reserves the right to change products or specifications without notice.
168-PIN SDRAM UDIMM
MT9LSDT3272A
0D
0A
A0
2D
2C
80
08
04
01
48
00
01
70
75
80
54
60
02
82
08
08
01
8F
04
06
01
01
00
0E
75
54
60
00
00
0F
14
0E
0F
14
0F
14
32
MT18LSDT6472A
©2004 Micron Technology, Inc.
0D
0A
A0
2D
80
08
04
02
48
00
01
75
75
80
54
60
02
82
08
08
01
8F
04
06
01
01
00
0E
75
54
60
00
00
0F
14
0E
0F
14
0F
14
2C
32