W3EG7266S-AD4 Datasheet, PDF (4/13 Pages) White Electronic Designs Corporation – 512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL

White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Voltage on any pin relative to VSS
VIN, VOUT
Voltage on VCC supply relative to VSS
VCC, VCCQ
Storage Temperature
TSTG
Power Dissipation
PD
Short Circuit Current
IOS
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.
W3EG7266S-AD4
-BD4
PRELIMINARY
Value
– 0.5 ~ 3.6
–1.0 ~ 3.6
– 55 ~ +150
9
50
Units
V
V
°C
W
mA
Parameter
Supply Voltage
Supply Voltage
Reference Voltage
Termination Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
DC CHARACTERISTICS
0°C ≤ TA ≤ 70°C, VCC = 2.5V ± 0.2V
Symbol
Min
Max
Unit
VCC
2.3
2.7
V
VCCQ
2.3
2.7
V
VREF
1.15
1.35
V
VTT
1.15
1.35
V
VIH
VREF + 0.15
VCCQ + 0.3
V
VIL
– 0.3
VREF – 0.15
V
VOH
VTT + 0.76
—
V
VOL
—
VTT – 0.76
V
Parameter
Input Capacitance (A0-A12)
Input Capacitance (RAS#,CAS#,WE#)
Input Capacitance (CKE0,CKE1)
Input Capacitance (CK0,CK0#)
Input Capacitance (CS0#,CS1#)
Input Capacitance (DQM0-DQM8)
Input Capacitance (BA0-BA1)
Data input/output Capacitance (DQ0-DQ63)(DQS)
Data input/output Capacitance (CB0-CB7)
October 2004
Rev. 7
CAPACITANCE
TA = 25°C, f = 1MHz, VCC = 2.5V ± 0.2V
Symbol
Max
Unit
CIN1
29
pF
CIN2
29
pF
CIN3
29
pF
CIN4
5.5
pF
CIN5
29
pF
CIN6
8
pF
CIN7
29
pF
COUT
8
pF
COUT
8
pF
4
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