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43
512Mb: x4, x8, x16 DDR SDRAM
512Mx4x8x16DDR_B.p65
–
Rev. B; Pub 4/01
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2001, Micron Technology, Inc.
512Mb: x4, x8, x16
DDR SDRAM
ADVANCE
ABSOLUTE MAXIMUM RATINGS*
V
DD
Supply Voltage Relative to V
SS
.............-1V to +3.6V
V
DD
Q Supply Voltage Relative to V
SS
..........-1V to +3.6V
V
REF
and Inputs Voltage Relative to V
SS
........-1V to +3.6V
I/O Pins Voltage Relative to V
SS
........-0.5V to V
DD
Q +0.5V
Operating Temperature, T
A
(ambient)....0°C to +70°C
Storage Temperature (plastic) ............ -55°C to +150°C
Power Dissipation ........................................................ 1W
Short Circuit Output Current.................................50mA
*Stresses greater than those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only, and functional
operation of the device at these or any other conditions
above those indicated in the operational sections of
this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect reliability.
DC ELECTRICAL CHARACTERISTICS AND OPERATING CONDITIONS
(Notes: 1
–
5, 16; notes appear on pages 50
–
53) (0
°
C
≤
T
A
≤
+70
°
C; V
DD
= +2.5V ±0.2V, V
DD
Q = +2.5V ±0.2V)
PARAMETER/CONDITION
Supply Voltage
I/O Supply Voltage
SYMBOL
V
DD
V
DD
Q
MIN
2.3
2.3
MAX
2.7
2.7
UNITS NOTES
V
V
36, 41
36, 41,
44
6, 44
7, 44
28
28
I/O Reference Voltage
I/O Termination Voltage (system)
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
INPUT LEAKAGE CURRENT
Any input 0V
≤
V
IN
≤
V
DD
, V
REF
pin 0V
≤
V
IN
≤
1.35V
(All other pins not under test = 0V)
OUTPUT LEAKAGE CURRENT
(DQs are disabled; 0V
≤
V
OUT
≤
V
DD
Q)
OUTPUT LEVELS: Full drive option - x4, x8, x16
High Current (V
OUT
= V
DD
Q-0.373V, minimum V
REF
, minimum V
TT
)
Low Current (V
OUT
= 0.373V, maximum V
REF
, maximum V
TT
)
OUTPUT LEVELS: Reduced drive option - x16 only
High Current (V
OUT
= V
DD
Q-0.763V, minimum V
REF
, minimum V
TT
)
Low Current (V
OUT
= 0.763V, maximum V
REF
, maximum V
TT
)
V
REF
V
TT
V
IH
(
DC
)
V
IL
(
DC
)
0.49
x
V
DD
Q
V
REF
- 0.04
V
REF
+ 0.15
-0.3
0.51
x
V
DD
Q
V
REF
+ 0.04
V
DD
+ 0.3
V
REF
- 0.15
V
V
V
V
I
I
-2
2
μA
I
OZ
-5
5
μA
I
OH
I
OL
-16.8
16.8
–
–
mA
mA
37, 39
I
OHR
I
OLR
-9
9
–
–
mA
mA
38, 39
AC INPUT OPERATING CONDITIONS
(Notes: 1
–
5, 14, 16; notes appear on pages 50
–
53) (0
°
C
≤
T
A
≤
+70
°
C; V
DD
= +2.5V ±0.2V, V
DD
Q = +2.5V ±0.2V)
PARAMETER/CONDITION
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
I/O Reference Voltage
SYMBOL
V
IH
(
AC
)
V
IL
(
AC
)
V
REF
(
AC
)
MIN
MAX
–
UNITS
V
V
V
NOTES
14, 28, 40
14, 28, 40
6
V
REF
+ 0.310
–
0.49 x V
DD
Q
V
REF
- 0.310
0.51 x V
DD
Q