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参数资料
| 型号： | WED3EG7218S202D3 |
| 厂商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分类： | DRAM |
| 英文描述： | 16M X 72 DDR DRAM MODULE, 0.75 ns, DMA184 |
| 封装： | DIMM-184 |
| 文件页数： | 7/12页 |
| 文件大小： | 217K |
| 代理商： | WED3EG7218S202D3 |
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WED3EG7218S-D3
-JD3
November 2005
Rev. 1
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Value
Units
Voltage on any pin relative to VSS
VIN, VOUT
-0.5 ~ 3.6
V
Voltage on VCC supply relative to VSS
VCC, VCCQ
-1.0 ~ 3.6
V
Storage Temperature
TSTG
-55 ~ +150
°C
Power Dissipation
PD
9W
Short Circuit Current
I0S
50
mA
Notes:
Permanent device damage may occur if ‘ABSOLUTE MAXIMUM RATINGS’ are exceeded.
Functional operation should be restricted to recommended operating condition.
Exposure to higher than recommended voltage for extended periods of time could affect device reliability
DC CHARACTERISTICS
(0°C
≤ TA ≤ 70°C, VCC = 2.5V ± O.2V)
Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
2.3
2.7
V
Supply Voltage
VCCQ
2.3
2.7
V
Reference Voltage
VREF
1.15
1.35
V
Termination Voltage
VTT
1.15
1.35
V
Input High Voltage
VIH
VREF+0.15
VCCQ+0.3
V
Input Low Voltage
VIL
-0.3
VREF+0.15
V
Output High Voltage
VOH
VTT+0.76
—
V
Output Low Voltage
VOL
—VTT-0.76
V
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
CIN1
45
pF
Input Capacitance (RAS#,CAS#,WE#)
CIN2
45
pF
Input Capacitance (CKE0, CKE1)
CIN3
45
pF
Input Capacitance (CK0,CK0#)
CIN4
40
pF
Input Capacitance (CS0#, CS1#)
CIN5
44
pF
Input Capacitance (DQM0-DQM8)
CIN6
15
pF
Input Capacitance (BA0-BA1)
CIN7
45
pF
Data Input/Output capacitance (DQ0-DQ63)(DQS)
COUT
15
pF
Data Input/Output Capacitance (CB0-CB7)
COUT
15
pF
CAPACITANCE
(TA = 25°C. f = 1MHz, VCC = 2.5V)
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