mt18vddt12872dg-265 Micron Semiconductor Products, mt18vddt12872dg-265 Datasheet - Page 2

• Manufacturer Part Number: mt18vddt12872dg-265
• Description: 256mb, 512mb, 1gb, 2gb X72, Ecc, Dr 184-pin Ddr Rdimm
• Manufacturer: Micron Semiconductor Products

Table 1:
Table 2:
Table 3:
Table 4:
PDF: 09005aef80e1141d/Source: 09005aef80e11353
DD18C32_64_128_256x72D.fm - Rev. D 4/08 EN
Parameter
Part Number
Part Number
Refresh count
Row address
Device bank address
Device configuration
Column address
Module rank address
MT18VDDT3272DG-335__
MT18VDDT3272DG-26A__
MT18VDDT3272DG-265__
MT18VDDT6472DG-262__
MT18VDDT6472DG-26A__
MT18VDDT6472DG-265__
MT18VDDT6472DY-265__
Speed
Grade
-26A
-335
-262
-265
Key Timing Parameters
Addressing
Part Numbers and Timing Parameters – 256MB Modules
Base device: MT46V16M8,
Part Numbers and Timing Parameters – 512MB Modules
Base device: MT46V32M8,
2
2
Nomenclature
Notes:
Notes:
Industry
PC2700
PC2100
PC2100
PC2100
128Mb (16 Meg x 8)
1. The values of
1. The data sheets for the base devices can be found on Micron’s Web site.
2. All part numbers end with a two-place code (not shown) that designates component and
4K (A0–A11)
4 (BA0, BA1)
1K (A0–A9)
2 (S0#, S1#)
actual DDR SDRAM device specifications are 15ns.
PCB revisions. Consult factory for current revision codes.
Example: MT18VDDT25672DG-335A2.
256MB
Module
Density
Module
Density
256MB
256MB
256MB
512MB
512MB
512MB
512MB
4K
CL = 3
256MB, 512MB, 1GB, 2GB (x72, ECC, DR) 184-Pin DDR RDIMM
–
–
–
–
1
1
128Mb DDR SDRAM
256Mb DDR SDRAM
Data Rate (MT/s)
t
RCD and
CL = 2.5
Configuration
Configuration
32 Meg x 72
32 Meg x 72
32 Meg x 72
64 Meg x 72
64 Meg x 72
64 Meg x 72
64 Meg x 72
256Mb (32 Meg x 8)
333
266
266
266
t
8K (A0–A12)
4 (BA0, BA1)
2 (S0#, S1#)
RP for -335 modules show 18ns to align with industry specifications;
1K (A0–A9)
512MB
8K
2
CL = 2
266
266
266
200
Bandwidth
Bandwidth
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Module
Module
2.7 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
t
512Mb (64 Meg x 8)
(ns)
RCD
18
15
20
20
2K (A0–A9, A11)
4 (BA0, BA1)
8K (A0–A12)
2 (S0#, S1#)
1GB
8K
Memory Clock/
Memory Clock/
7.5ns/266 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
6.0ns/333 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
Data Rate
(ns)
Data Rate
t
18
15
20
20
RP
©2003 Micron Technology, Inc. All rights reserved
1Gb (128 Meg x 8)
(ns)
t
2K (A0–A9, A11)
60
60
65
65
RC
16K (A0–A13)
4 (BA0, BA1)
2 (S0#, S1#)
(CL-
(CL-
Clock Cycles
Clock Cycles
2GB
8K
2.5-3-3
2.5-3-3
2.5-3-3
t
t
Features
2-2-2
2-3-3
3-3-3
2-3-3
RCD-
RCD-
Notes
1
t
t
RP)
RP)