Internet Data Sheet
Rev. 1.42, 2007-01
03292006-7CZA-YS85
14
HYS72D[64/128/256]xxx[G/H]BR–[5/6/7]–B
Registered DDR SDRAM Module
TABLE 9
Electrical Characteristics and DC Operating Conditions
Parameter
Symbol
Values
Unit
Note/Test Condition
1)
1) 0
°
C
≤
T
A
≤
70
°
C;
V
DDQ
= 2.5 V
±
0.2 V,
V
DD
= +2.5 V
±
0.2 V;
2) DDR400 conditions apply for all clock frequencies above 166 MHz
3) Under all conditions,
V
DDQ
must be less than or equal to
V
DD
.
4) Peak to peak AC noise on
V
REF
may not exceed ± 2 %
V
REF.DC
.
V
REF
is also expected to track noise variations in
V
DDQ
.
5) 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
.
6) Inputs are not recognized as valid until
V
REF
stabilizes.
7)
V
ID
is the magnitude of the difference between the input level on CK and the input level on CK.
8) The ratio of the pull-up current to the pull-down current is specified for the same temperature and voltage, over the entire temperature and
voltage range, for device drain to source voltage from 0.25 to 1.0 V. For a given output, it represents the maximum difference between
pull-up and pull-down drivers due to process variation.
9) Values are shown per pin.
Min.
Typ.
Max.
Device Supply Voltage
Device Supply Voltage
Output Supply Voltage
Output Supply Voltage
Supply Voltage, I/O Supply
Voltage
Input Reference Voltage
I/O Termination Voltage
(System)
Input High (Logic1) Voltage
Input Low (Logic0) Voltage
Input Voltage Level, CK and
CK Inputs
Input Differential Voltage,
CK and CK Inputs
VI-Matching Pull-up Current
to Pull-down Current
Input Leakage Current
V
DD
V
DD
V
DDQ
V
DDQ
V
SS
,
V
SSQ
2.3
2.5
2.3
2.5
0
2.5
2.6
2.5
2.6
—
2.7
2.7
2.7
2.7
0
V
V
V
V
V
f
CK
£ 166 MHz
f
CK
> 166 MHz
2)
f
CK
£ 166 MHz
3)
f
CK
> 166 MHz
2)3)
—
V
REF
V
TT
0.49
×
V
DDQ
V
REF
– 0.04
0.5
×
V
DDQ
—
0.51
×
V
DDQ
V
REF
+ 0.04
V
V
4)
5)
V
IH(DC)
V
IL(DC)
V
IN(DC)
V
REF
+ 0.15
–
0.3
–
0.3
—
—
—
V
DDQ
+ 0.3
V
REF
– 0.15
V
DDQ
+ 0.3
V
V
V
6)
6)
6)
V
ID(DC)
0.36
—
V
DDQ
+ 0.6
V
6)7)
V
I
Ratio
0.71
—
1.4
—
8)
I
I
–2
—
2
μ
A
Any input 0 V
≤
V
IN
≤
V
DD
; All
other pins not under test = 0 V
9)
DQs are disabled; 0 V
≤
V
OUT
≤
V
DDQ
9)
V
OUT
= 1.95 V
Output Leakage Current
I
OZ
–5
—
5
μ
A
Output High Current, Normal
Strength Driver
Output Low Current, Normal
Strength Driver
I
OH
—
—
–16.2
mA
I
OL
16.2
—
—
mA
V
OUT
= 0.35 V