參數(shù)資料
型號(hào): W3HG2128M72ACER534AD6IMG
廠商: WHITE ELECTRONIC DESIGNS CORP
元件分類: DRAM
英文描述: 256M X 72 DDR DRAM MODULE, 0.5 ns, DMA240
封裝: ROHS COMPLIANT, DIMM-240
文件頁數(shù): 1/13頁
文件大?。?/td> 305K
代理商: W3HG2128M72ACER534AD6IMG
W3HG2128M72ACER-xAD6
May 2007
Rev. 9
PRELIMINARY*
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
2GB – 2x128Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP
DESCRIPTION
The W3HG2128M72ACER is a 2x128Mx72 Double Data
Rate DDR2 SDRAM high density module based on DDR2
SDRAM components. This memory module consists of
eighteen stacks of 2x128Mx4 bit with 4 banks DDR2
Synchronous DRAMs in FBGA packages, mounted on a
240-pin DIMM FR4 substrate.
* This product is under development, is not qualied or characterized and is subject to
change without notice.
NOTE: Consult factory for availability of:
Vendor source control options
Industrial temperature option
Parity function
FEATURES
240-pin, dual in-line very low prole (VLP) memory
module
Fast data transfer rates: PC2-6400*, PC2-5300,
PC2-4300 and PC2-3200
Utilizes 800, 667, 533 and 400 Mb/s DDR2 SDRAM
components
VCC = VCCQ = 1.8V
VCCSPD = +1.7V to +3.6V
Differential data strobe (DQS, DQS#) option
Four-bit prefetch architecture
DLL to align DQ and DQS transitions with CK
Multiple internal device banks for concurrent
operation
Supports duplicate output strobe (RDQS/RDQS#)
Programmable CAS# latency (CL): 3, 4, 5 and 6
Adjustable data-output drive strength
On-die termination (ODT)
Posted CAS# additive latency: 0, 1, 2, 3 and 4
Serial Presence Detect (SPD) with EEPROM
64ms: 8,192 cycle refresh
Gold edge contacts
ECC error detection and correction
Dual Rank
RoHS compliant
Package option
240 Pin VLP: 18.29mm (0.720") TYP
OPERATING FREQUENCIES
PC2-3200
PC2-4300
PC2-5300
PC2-6400*
Clock Speed
200MHz
266MHz
333MHz
400MHz
CL-tRCD-tRP
3-3-3
4-4-4
5-5-5
6-6-6
* Consult factory for availability
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