W3EG7264S-AD4 Datasheet, PDF (4/13 Pages) White Electronic Designs Corporation – 512MB - 2x32Mx72 DDR ECC SDRAM UNBUFFERED w/PLL

White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage on any pin relative to VSS
Voltage on VCC supply relative to VSS
Storage Temperature
Power Dissipation
Short Circuit Current
Symbol
VIN, VOUT
VCC, VCCQ
TSTG
PD
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.
W3EG7264S-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
CAPACITANCE
TA = 25°C, f = 1MHz, VCC = 2.5V
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)
Symbol
Max
Unit
CIN1
56
pF
CIN2
56
pF
CIN3
29
pF
CIN4
5.5
pF
CIN5
29
pF
CIN6
13
pF
CIN7
56
pF
COUT
13
pF
COUT
13
pF
January 2005
Rev. 3
4
White Electronic Designs Corporation • [phone] • www.wedc.com