W3EG6432S-D3 Datasheet, PDF (4/13 Pages) White Electronic Designs Corporation – 256MB - 32Mx64 DDR SDRAM UNBUFFERED

White Electronic Designs
W3EG6432S-D3
-JD3
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
-0.5 to 3.6
-1.0 to 3.6
-55 to +150
8
50
Units
V
V
°C
W
mA
DC CHARACTERISTICS
0°C ≤ TA ≤ 70°C, VCC = VCCQ = 2.5V ± 0.2V, VCC = VCCQ = 2.6V ± 0.1V (200MHz)
Parameter
Symbol
Min
Max
Unit
Supply Voltage
Supply Voltage
Reference Voltage
Termination Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
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 = VCCQ = 2.5V ± 0.2V, VCC = VCCQ = 2.6V ± 0.1V (200MHz)
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)
Symbol
Max
Unit
CIN1
29
pF
CIN2
29
pF
CIN3
29
pF
CIN4
26
pF
CIN5
29
pF
CIN6
8
pF
CIN7
29
pF
COUT
8
pF
May 2005
Rev. 6
4
White Electronic Designs Corporation • [phone] • www.wedc.com