512MB, 1GB, 2GB, 4GB (x64, DR) 240-Pin DDR2 UDIMM
Features
Table 5: Part Numbers and Timing Parameters – 2GB Modules
Base device: MT47H128M8,
1
1Gb DDR2 SDRAM
Module
Part Number
Density
Configuration
MT16HTF25664A(I)Y-80E__
MT16HTF25664A(I)Y-800__
MT16HTF25664A(I)Y-667__
MT16HTF25664A(I)Y-53E__
MT16HTF25664A(I)Y-40E__
2GB
2GB
2GB
2GB
2GB
256 Meg x 64
256 Meg x 64
256 Meg x 64
256 Meg x 64
256 Meg x 64
Module
Bandwidth
6.4 GB/s
6.4 GB/s
5.3 GB/s
4.3 GB/s
3.2 GB/s
Memory Clock/
Data Rate
2.5ns/800 MT/s
2.5ns/800 MT/s
3.0ns/667 MT/s
3.75ns/533 MT/s
5.0ns/400 MT/s
Clock Cycles
(CL-
t
RCD-
t
RP)
5-5-5
6-6-6
5-5-5
4-4-4
3-3-3
Table 6: Part Numbers and Timing Parameters – 4GB Modules
Base device: MT47H256M8,
1
2Gb DDR2 SDRAM
Module
Part Number
Density
Configuration
MT16HTF51264A(I)Y-667__
MT16HTF51264A(I)Y-53E__
Notes:
4GB
4GB
512 Meg x 64
512 Meg x 64
Module
Bandwidth
5.3 GB/s
4.3 GB/s
Memory Clock/
Data Rate
3.0ns/667 MT/s
3.75ns/533 MT/s
Clock Cycles
(CL-
t
RCD-
t
RP)
5-5-5
4-4-4
1. The data sheet for the base device can be found on Micron’s Web site.
2. All part numbers end with a two-place code (not shown) that designates component and PCB revisions.
Consult factory for current revision codes. Example: MT16HTF25664AY-667E1.
PDF: 09005aef80f09084
htf16c64_128_256x64ay.pdf - Rev. G 3/10 EN
3
Micron Technology, Inc. reserves the right to change products or specifications without notice.
©
2003 Micron Technology, Inc. All rights reserved.
MICRON [ MICRON TECHNOLOGY ]
