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參數(shù)資料
| 型號： | W1D256M72R8A-3.75AR-QA |
| 廠商： | XILINX INC |
| 元件分類： | DRAM |
| 英文描述： | 256M X 8 DDR DRAM MODULE, 0.5 ns, DMA240 |
| 封裝： | MO-237, DIMM-240 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 255K |
| 代理商： | W1D256M72R8A-3.75AR-QA |
DDR2-400, 533
Single Rank, x8 Registered SDRAM DIMMs
DDR2_RDIMM_1 rank_x8_spec
Rev. 1.0 - December, 04
Wintec Industries, Inc., reserves the right to change datasheets and/or products without any notice.
2004 Wintec Industries, Inc.
1
256MB - W1D32M72R8
512MB - W1D64M72R8
1GB
- W1D128M72R8
2GB
- W1D256M72R8 (Preliminary*)
Figure 1: Available layouts
Layout A:
1.181"
Layout B:
1.0"
Front view of double-sided DIMM (see detail physical dimensions
at the back)
Features:
240-pin Registered ECC DDR2 SDRAM Dual-In-
Line Memory Module for DDR2-400 and DDR2-533
JEDEC standard VDD=1.8V (+/- 0.1V) power
supply
One rank 256MB, 512MB, 1GB, and 2GB
Modules are built with 18 x8 DDR2 SDRAM
devices in a 60-ball FBGA package
ECC error detection and correction
Programmable CAS Latency of 3 and 4; Burst
Length of 4 and 8
Auto Refresh and Self Refresh Mode
OCD (Off-Chip Driver Impedance Adjustment) and
ODT (On-Die Termination)
SPD (Serial Presence Detect) with EEPROM
All input/output are SSTL_18 compatible
All contacts are gold plated
One clock delay for register
Speed Grades:
Speed Grade
-5
-3.75
Units
Module Speed Grade PC2-3200 PC2-4200
Speed @ CL3
400
-
MHz
Speed @ CL4
400
533
MHz
Speed @ CL5
-
533
MHz
Note: See Product ordering for full naming guide
Description:
The following specification covers the W1D32M72R8, W1D64M72R8, W1D128M72R8, and W1D256M72R8
family of Single-Rank Registered ECC DDR2 modules using x8 FBGA SDRAMs. Please reference Figure 1 for
available layout configurations and the product ordering guide on the final page of this specification for available
options including speed grade and silicon manufacturer.
Address Summary Table:
256MB
512MB
1GB
2GB
Module Configuration
32M x 72
64M x 72
128M x 72
256M x 72
Refresh
8k
8K
Device Configuration
32M x 8
(9 components)
64M x 8
(9 components)
128M x 8
(9 components)
256M x 8
(9 components)
Row Addressing
A0-A13
A0-A14
Column Addressing
A0-A9
Module Rank
1
*Specifications are for reference purposes only and are subject to change by Wintec without notice.
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