256MB, 512MB, 1GB, 2GB (x64, DR)
184-PIN DDR SDRAM UDIMM
Ta b le 22: Se ria l Pre se n ce -De t e ct Ma t rix (256MB, 512MB, a n d 1GB)
“1”/“0”: Serial Data, “driven to HIGH”/“driven to LOW”; notes appear on page 31
BYTE
DESCRIPTION
ENTRY (VERSION) MT16VDDT3264A MT16VDDT6464A MT16VDDT12864A
0
1
2
3
128
256
80
08
07
0C
80
08
07
0D
80
08
07
0D
Number of SPD Bytes Used by Micron
Total Number of Bytes in SPD Device
Fundamental Memory Type
SDRAM DDR
12, 13
Number of Row Addresses on
Assembly
4
10, 11
0A
0A
0B
Number of Column Addresses on
Assembly
5
6
7
8
9
Number of Physical Ranks on DIMM
Module Data Width
2
02
40
00
04
2
2
64
0
40
00
04
40
00
04
Module Data Width (Continued)
Module Voltage Interface Levels
SDRAM Cycle Time, tCK, (CAS Latency
= 2.5) (See note 1)
SSTL 2.5V
6ns (-335)
7ns (-262/-26A)
7.5ns (-265)
60
70
75
60
70
75
60
70
75
t
10
0.7ns (-335)
0.75ns (-262/-26A/-265)
70
75
70
75
70
75
SDRAM Access From Clock, AC
(CAS Latency = 2.5)
11
12
13
None
00
80
08
00
82
08
00
82
08
Module Configuration Type
Refresh Rate/Type
15.62µs, 7.8µs/SELF
8
SDRAM Device Width (Primary DDR
SDRAM)
14
15
Error-Checking DDR SDRAM Data Width
None
00
01
00
01
00
01
Minimum Clock Delay, Back-to-Back
Random Column Access
1 clock
16
17
18
19
20
21
2, 4, 8
0E
04
0C
01
02
20
0E
04
0C
01
02
20
0E
04
0C
01
02
20
Burst Lengths Supported
Number of Banks on DDR SDRAM Device
CAS Latencies Supported
CS Latency
4
2, 2.5
0
1
WE Latency
Unbuffered/Diff.
Clock
SDRAM Module Attributes
22
23
Fast/Concurrent AP
C0
C0
C0
SDRAM Device Attributes: General
SDRAM Cycle Time, tCK
(CAS Latency = 2)
7.5ns (-335/-262/-26A)
10ns (-265
75
A0
75
A0
75
A0
SDRAM Access From CK, tAC
(CAS Latency = 2)
SDRAM Cycle Time, tCK
(CAS Latency = 1.5)
SDRAM Access From CK, tAC
(CAS Latency = 1.5)
24
25
26
27
0.7ns (-335)
0.75ns (-262/-26A/-265)
70
75
70
75
70
75
N/A
00
00
00
N/A
00
00
00
t
18ns (-335)
15ns (-262)
20ns (-26A/-265)
48
3C
50
48
3C
50
48
3C
50
Minimum Row Precharge Time, RP
(see note 4)
pdf: 09005aef80739fa5, source: 09005aef807397e5
DD16C32_64_128_256x64AG.fm - Rev. C 9/04 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2004 Micron Technology, Inc.
29
MICRON [ MICRON TECHNOLOGY ]
