W3DG7267V-D2 Datasheet, PDF (3/9 Pages) White Electronic Designs Corporation – 512MB - 2x32Mx72, SDRAM UNBUFFERED

White Electronic Designs
W3DG7267V-D2
PRELIMINARY
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.
Value
-1.0 ~ 4.6
-1.0 ~ 4.6
-55 ~ +150
18
50
Units
V
V
°C
W
mA
RECOMMENDED DC OPERATING CONDITIONS
Voltage Referenced to: VSS = 0V, 0°C ≤ TA ≤ 70°
Parameter
Supply Voltage
Input High Voltage
Symbol
Min
VCC
3.0
VIH
2.0
Typ
Max
Unit
Note
3.3
3.6
V
3.0
VCCQ+0.3
V
1
Input Low Voltage
Output High Voltage
Output Low Voltage
Input Leakage Current
VIL
-0.3
—
0.8
V
2
VOH
2.4
—
—
V
IOH= -2mA
VOL
—
—
0.4
V
IOL= -2mA
ILI
-10
—
10
μA
3
Note: 1. VIH (max)= 5.6V AC. The overshoot voltage duration is ≤ 3ns.
2. VIL (min)= -2.0V AC. The undershoot voltage duration is ≤ 3ns.
3. Any input 0V ≤ VIN ≤ VCCQ
Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs.
CAPACITANCE
TA = 25 °C, f = 1MHz, VCC = 3.3V, VREF = 1.4V ± 200mV
Parameter
Input Capacitance (A0-A12)
Symbol
Max
Unit
CIN1
74
pF
Input Capacitance (RAS#,CAS#,WE#)
CIN2
74
pF
Input Capacitance (CKE0)
CIN3
74
pF
Input Capacitance (CLK0)
CIN4
16
pF
Input Capacitance (CS0#,CS2#)
CIN5
24
pF
Input Capacitance (DQM0-DQM7)
CIN6
15
pF
Input Capacitance (BA0-BA1)
CIN7
74
pF
Data input/output capacitance (DQ0-DQ63)
Data input/output capacitance (CB0-CB7)
COUT
15
pF
COUT1
15
pF
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
January 2005
Rev. 1
3
White Electronic Designs Corporation • [phone] • www.wedc.com