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參數(shù)資料
| 型號(hào)： | WV3EG64M64ETSU403D4IMG |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 64M X 64 DDR DRAM MODULE, 0.65 ns, ZMA200 |
| 封裝： | ROHS COMPLIANT, SODIMM-200 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 177K |
| 代理商： | WV3EG64M64ETSU403D4IMG |
WV3EG64M64ETSU-D4
9
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
March 2006
Rev. 0
PRELIMINARY
DDR SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC
OPERATING CONDITIONS
0°C ≤ TA ≤ +70°C
AC Characteristics
403
335
Units
Parameter
Symbol
Min
Max
Min
Max
DQS-in high level width
tDQSH
0.35
tCK
DQS-in low level width
tDQSL
0.35
tCK
Address and control input setup time (fast)
tISF
0.6
0.75
ns
Address and control input hold time (fast)
tIHF
0.6
0.75
ns
Address and control input setup time (slow)
tISs
0.7
0.8
ns
Address and control input hold time (slow)
tIHS
0.7
0.8
ns
Data-out high-impedance time from CK/CK#
tHZ
+0.65
+0.70
ns
Data-out low-impedance time from CK/CK#
tLZ
-0.65
-0.70
ns
Mode register set cycle
tMRD
10
12
ns
DQ and DM input setup time to DQS
tDS
0.4
0.45
ns
DQ and DM input hold time to DQS
tDH
0.4
0.45
ns
Control & address input pulse width
tIPW
2.2
ns
DQ & DM input pulse width
tDIPW
1.75
ns
Exit self refresh to non-Read command
tXSNR
75
ns
Exit self refresh to Read command
tXSRD
200
tCK
Refresh interval time
tREFI
7.8
s
Output DQS valid window
tQH
tHP - tQHS
ns
Clock Half period
tHP
tCL(MIN) or tCH(MAX)
ns
Data hold skew factor
tQHS
0.5
ns
DQS write postable
tWPST
0.4
0.6
0.4
0.6
ns
Active read with auto precharge command
tRAP
15
18
ns
Auto precharge write recovery + precharge time
tDAL
tWR/tCK
+
tRP/tCK
tWR/tCK
+
tRP/tCK
tCK
Notes:
Industrial grade modules are specied to a DRAM tCASE of 85°C and -40°C
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WV3EG64M64ETSU-D3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx64 DDR SDRAM UNBUFFERED |
| WV3EG64M64ETSU-D4 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx64 DDR SDRAM, UNBUFFERED, SO-DIMM |
| WV3EG64M72ETSU-D3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED |
| WV3EG72M64ETSU335D3MG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED |
| WV3EG72M64ETSU335D3SG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED |
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