MT9VDDT6472HG Datasheet, PDF (2/18 Pages) Micron Technology – DDR SDRAM SODIMM

128MB, 256MB, 512MB (x72, ECC, SR) 200-Pin DDR SODIMM
Features
Table 1: Key Timing Parameters
Speed
Grade
-40B
-335
-262
-26A
-265
Industry
Data Rate (MT/s)
t_RCD
t_RP
Nomenclature
CL = 3
CL = 2.5
CL = 2
(ns)
(ns)
t_RC
(ns)
Notes
PC3200
PC2700
PC2100
PC2100
PC2100
400
333
266
15
15
55
–
333
266
18
18
60
1
–
266
266
15
15
60
–
266
266
20
20
65
–
266
200
20
20
65
Notes: 1. The values of ^tRCD and ^tRP for -335 modules show 18ns to align with industry specifications;
actual DDR SDRAM device specifications are 15ns.
Table 2: Addressing
Parameter
Refresh count
Row address
Device bank address
Device configuration
Column address
Module rank address
128MB
4K
8K (A[11:0])
4 (BA[1:0])
128Mb (16 Meg x 8)
1K (A[9:0])
1 (S0#)
256MB
8K
8K (A[12:0])
4 (BA[1:0])
256Mb (32 Meg x 8)
1K (A[9:0])
1 (S0#)
512MB
8K
8K (A[12:0])
4 (BA[1:0])
512Mb (64 Meg x 8)
2K (A[11, 9:0])
1 (S0#)
Table 3:
Part Numbers and Timing Parameters – 128MB Modules
Base device: MT46V16M8,¹ 128Mb DDR SDRAM
Part Number²
MT9VDDT1672HG-335__
MT9VDDT1672HY-335__
MT9VDDT1672HY-262__
MT9VDDT1672HG-26A__
MT9VDDT1672HG-265__
Module
Density
128MB
128MB
128MB
128MB
128MB
Configuration
16 Meg x 72
16 Meg x 72
16 Meg x 72
16 Meg x 72
16 Meg x 72
Module
Bandwidth
2.7 GB/s
2.7 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
Memory Clock/
Data Rate
6.0ns/333 MT/s
6.0ns/333 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
Clock Cycles
(CL-^tRCD-^tRP)
2.5-3-3
2.5-3-3
2-2-2
2-3-3
2.5-3-3
Table 4:
Part Numbers and Timing Parameters – 256MB Modules
Base device: MT46V32M8,¹ 256Mb DDR SDRAM
Part Number²
MT9VDDT3272HG-40B__
MT9VDDT3272HY-40B__
MT9VDDT3272HG-335__
MT9VDDT3272H(I)Y-335__
MT9VDDT3272HG-262__
MT9VDDT3272HG-265__
MT9VDDT3272HY-265__
Module
Density
256MB
256MB
256MB
256MB
256MB
256MB
256MB
Configuration
32 Meg x 72
32 Meg x 72
32 Meg x 72
32 Meg x 72
32 Meg x 72
32 Meg x 72
32 Meg x 72
Module
Bandwidth
3.2 GB/s
3.2 GB/s
2.7 GB/s
2.7 GB/s
2.1 GB/s
2.1 GB/s
2.1 GB/s
Memory Clock/
Data Rate
5.0ns/400 MT/s
5.0ns/400 MT/s
6.0ns/333 MT/s
6.0ns/333 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
7.5ns/266 MT/s
Clock Cycles
(CL-^tRCD-^tRP)
3-3-3
3-3-3
2.5-3-3
2.5-3-3
2-2-2
2.5-3-3
2.5-3-3
PDF: 09005aef80804052/Source: 09005aef806e057b
DD9C16_32_64x72H.fm - Rev. F 3/12 EN
2
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