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W3EG7266S-AD4 数据表(PDF) 4 Page - White Electronic Designs Corporation

部件名 W3EG7266S-AD4
功能描述  512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL
Download  13 Pages
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制造商  WEDC [White Electronic Designs Corporation]
网页  http://www.whiteedc.com
标志 WEDC - White Electronic Designs Corporation

W3EG7266S-AD4 数据表(HTML) 4 Page - White Electronic Designs Corporation

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W3EG7266S-AD4
-BD4
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
October 2004
Rev. 7
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
IOS
50
mA
Note:
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 ± 0.2V
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
CAPACITANCE
TA = 25°C, f = 1MHz, VCC = 2.5V ± 0.2V
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
CIN1
29
pF
Input Capacitance (RAS#,CAS#,WE#)
CIN2
29
pF
Input Capacitance (CKE0,CKE1)
CIN3
29
pF
Input Capacitance (CK0,CK0#)
CIN4
5.5
pF
Input Capacitance (CS0#,CS1#)
CIN5
29
pF
Input Capacitance (DQM0-DQM8)
CIN6
8pF
Input Capacitance (BA0-BA1)
CIN7
29
pF
Data input/output Capacitance (DQ0-DQ63)(DQS)
COUT
8pF
Data input/output Capacitance (CB0-CB7)
COUT
8pF


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