W3DG7232V-AD1 Datasheet, PDF (3/6 Pages) White Electronic Designs Corporation – 256MB - 32Mx72 SDRAM UNBUFFERED

White Electronic Designs
W3DG7232V-AD1
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Voltage on any pin relative to VSS
Voltage on VCC supply relative to VSS
Storage Temperature
Power Dissipation
Short Circuit Current
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.
Value
-1.0 ~ 4.6
-1.0 ~ 4.6
-55 ~ +150
9
50
Units
V
V
°C
W
mA
RECOMMENDED DC OPERATING CONDITIONS
Voltage Referenced to: VSS = 0V, 0°C ≤ TA ≤ +70°C
Parameter
Symbol
Min
Typ
Max
Supply Voltage
VCC
3.0
3.3
3.6
Input High Voltage
VIH
2.0
3.0
VCCQ+0.3
Input Low Voltage
VIL
-0.3
—
0.8
Output High Voltage
VOH
2.4
—
—
Output Low Voltage
VOL
—
—
0.4
Input Leakage Current
ILI
-10
—
10
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)
Input Capacitance (RAS#,CAS#,WE#)
Input Capacitance (CKE0)
Input Capacitance (CK0)
Input Capacitance (CS0#)
Input Capacitance (DQM0-DQM7)
Input Capacitance (BA0-BA1)
Data Input/Output Capacitance (DQ0-DQ63)
Data input/output capacitance (CB0-CB7)
Symbol
Max
CIN1
50
CIN2
50
CIN3
50
CIN4
22
CIN5
50
CIN6
8
CIN7
50
COUT
9.5
COUT1
9.5
Unit
Note
V
V
1
V
2
V
IOH= -2mA
V
IOL= -2mA
µA
3
Unit
pF
pF
pF
pF
pF
pF
pF
pF
pF
July 2004
Rev. 0
3
White Electronic Designs Corporation • [phone] • www.wedc.com