White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
All voltages referenced to V
SS
Parameter
Supply Voltage
I/O Reference Voltage
I/O Termination Voltage
SPD Supply Voltage
Symbol
V
CC
V
REF
V
TT
V
CCSPD
Min
1.7
0.49 x V
CC
V
REF
-0.04
1.7
Typical
1.8
0.50 x V
CC
V
REF
-
WV3HG128M72EEU-PD4
ADVANCED
DC OPERATING CONDITIONS
Max
1.9
0.51 x V
CC
V
REF
+0.04
3.6
Unit
V
V
V
V
Notes
3
1
2
Notes:
1
V
REF
is expected to equal V
CC/2
of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on
V
REF
may not exceed +/-1 percent of the
DC value. Peak-to-peak AC noise on V
REF
may not exceed +/-2 percent of V
REF
. This measurement is to be taken at the nearest V
REF
bypass capacitor.
2. V
TT
is not applied directly to the device. V
TT
is a system supply for signal termination resistors, is expected to be set equal to V
REF
and must track variations in the DC level of V
REF
.
3. V
CCQ
of all IC's are tied to V
CC
.
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
IN
, V
OUT
Parameter
Voltage on V
CC
pin relative to V
SS
Voltage on any pin relative to V
SS
Command/Address,
RAS#, CAS#, WE#,
I
L
Input leakage current; Any input 0V<V
IN
<V
CC
; V
REF
input
0V,V
IN
,0.95V; Other pins not under test = 0V
CS#, CKE
CK, CK#
DM
I
OZ
I
VREF
Output leakage current; 0V<V
IN
<V
CC
; DQs and ODT are disable
V
REF
leakage current; V
REF
= Valid V
REF
level
DQ, DQS, DQS#
Min
-0.5
-0.5
-45
-45
-10
-5
-5
-18
Max
2.3
2.3
45
45
10
5
5
18
Units
V
V
µA
µA
µA
µA
µA
µA
INPUT/OUTPUT CAPACITANCE
TA=25°C, f=100MHz
Parameter
Input capacitance (0A~A13, BA0~BA1,
RAS#, CAS#, WE#)
Input capacitance (CKE0) (ODT0)
Input capacitance (CS0#)
Input capacitance (CK, CK#)
Input capacitance (DM0~DM8),
(DQS0~DQS8)
Input capacitance (DQ0~DQ63),
(CB0~CB7)
Symbol
C
IN
1
C
IN
2
C
IN
3
C
IN
4
C
IN
5 (665)
C
IN
5 (534, 403)
C
OUT
1 (665)
C
OUT
1 (534, 403)
Min
13
13
13
6
6.5
6.5
6.5
6.5
Max
22
22
22
7
7.5
8
7.5
8
Unit
pF
pF
pF
pF
pF
pF
pF
pF
November 2006
Rev. 3
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
Parameter
Operating temperature (Commercial)
Symbol
TOPER
WV3HG128M72EEU-PD4
ADVANCED
OPERATING TEMPERATURE CONDITION
Rating
0
°
to 85°
Units
°C
Notes
1, 2
Notes:
1. Operating temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JEDED JESD51.2
2. At 0°C - 85°C, operation temperature range, all DRAM specification will be supported.
INPUT DC LOGIC LEVEL
All voltages referenced to V
SS
Parameter
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
Symbol
V
IH
(DC)
V
IL
(DC)
Min
V
REF
+ 0.125
-0.300
Max
V
CC
+ 0.300
V
REF
- 0.125
Units
V
V
INPUT AC LOGIC LEVEL
All voltages referenced to V
SS
Parameter
AC Input High (Logic 1) Voltage
DDR2-400 & DDR2-533
AC Input High (Logic 1) Voltage
DDR2-667
AC Input High (Logic 0) Voltage
DDR2-400 & DDR2-533
AC Input High (Logic 0) Voltage
DDR2-667
Symbol
V
IH
(AC)
V
IH
(AC)
V
IL
(AC)
V
IL
(AC)
Min
V
REF
+ 0.250
V
REF
+ 0.200
-
-
Max
-
-
V
REF
- 0.250
V
REF
- 0.200
Unit
V
V
V
V
November 2006
Rev. 3
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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