W3EG64128S-AD4 Datasheet, PDF (4/9 Pages) White Electronic Designs Corporation – 1GB - 2x64Mx64 DDR SDRAM UNBUFFERED w/PLL

White Electronic Designs
W3EG64128S-AD4
-BD4
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Voltage on any pin relative to VSS
Voltage on VCC supply relative to VSS
Storage Temperature
Power Dissipation
VIN, VOUT
VCC, VCCQ
TSTG
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.
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
VDDQ+0.3
V
VIL
-0.3
VREF-0.15
V
VOH
VTT+0.76
—
V
VOL
—
VTT-0.76
V
CAPACITANCE
TA = 23°C, f = 1MHz, VCC = 3.3V, VREF = 1.4V ± 200mV
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
CIN1
53
pF
Input Capacitance (RAS#, CAS#, WE#)
Input Capacitance (CKE0, CKE1)
Input Capacitance (CK0, CK0#)
Input Capacitance (CS0#, CS1#)
Input Capacitance (DQM0-DQM8)
CIN2
53
pF
CIN3
53
pF
CIN4
5.5
pF
CIN5
53
pF
CIN6
8
pF
Input Capacitance (BA0-BA1)
Data input/output capacitance (DQ0-DQ63)(DQS)
Data input/output capacitance (CB0-CB7)
CIN7
53
pF
COUT
8
pF
COUT
8
pF
May 2004
Rev. 0
4
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