256MB, 512MB, 1GB, 2GB (x64, DR)
184-PIN DDR SDRAM UDIMM
Ab so lu t e Ma xim u m Ra t in g s
Stresses greater than those listed m ay cause perm a-
nent 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 opera-
tional sections of this specification is not implied.
Exposure to absolute m axim um rating conditions for
extended periods m ay affect reliability.
Voltage on VDD Supply
Voltage on I/ O Pins
Relative to VSS . . . . . . . . . . . . . . . . . . . . -1V to +3.6V
Voltage on VDDQ Supply
Relative to VSS . . . . . . . . . . . . -0.5V to VDDQ +0.5V
Operating Temperature
Relative to VSS. . . . . . . . . . . . . . . . . . . . -1V to +3.6V
Voltage on VREF and Inputs
TA (ambient) . . . . . . . . . . . . . . . . . . . . .. 0°C to +70°C
Storage Temperature (plastic) . . . . . .-55°C to +150°C
Short Circuit Output Current. . . . . . . . . . . . . . . 50mA
Relative to VSS. . . . . . . . . . . . . . . . . . . . -1V to +3.6V
Ta b le 10: DC Ele ct rica l Ch a ra ct e rist ics a n d Op e ra t in g Co n d it io n s
Notes: 1–5, 14, 48; notes appear on pages 20–23; 0°C ≤ TA ≤ +70°C
PARAMETER/CONDITION
SYMBOL
MIN
MAX
UNITS
NOTES
Supply Voltage
VDD
VDDQ
VREF
2.3
2.3
2.7
2.7
V
V
V
V
V
V
32, 36
32, 36, 39
6, 39
I/O Supply Voltage
I/O Reference Voltage
0.49 × VDDQ 0.51 × VDDQ
I/O Termination Voltage (system)
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
INPUT LEAKAGE CURRENT
VTT
VREF - 0.04 VREF + 0.04
VREF + 0.15 VDD + 0.3
7, 39
VIH(DC)
VIL(DC)
25
-0.3
VREF - 0.15
25
Command/
-32
32
Any input 0V ≤ VIN ≤ VDD, VREF pin 0V ≤ VIN ≤ Address, RAS#,
1.35V (All other pins not under test = 0V)
CAS#, WE#
-16
-8
16
8
CKE, S#
II
µA
µA
47
CK0, CK0#
-12
12
CK1, CK1#
CK2, CK2#
DM
-4
4
OUTPUT LEAKAGE CURRENT
(DQs are disabled; 0V ≤ VOUT ≤ VDDQ)
DQ, DQS
IOZ
-10
10
47
OUTPUT LEVELS
IOH
IOL
-16.8
16.8
–
–
mA
mA
33, 34
High Current (VOUT = VDDQ-0.373V, minimum VREF, minimum VTT
)
Low Current (VOUT = 0.373V, maximum VREF, maximum VTT
)
Ta b le 11: AC In p u t Op e ra t in g Co n d it io n s
Notes: 1–5, 14, 48, 49; notes appear on pages 20–23; 0°C ≤ TA ≤ +70°C; VDD = VDDQ = +2.5V ±0.2V
PARAMETER/CONDITION
SYMBOL
MIN
MAX
UNITS
NOTES
VIH(AC)
VIL(AC)
VREF + 0.310
–
–
V
V
V
12, 25, 35
12, 25, 35
6
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
I/O Reference Voltage
VREF - 0.310
VREF(AC)
0.49
×
VDDQ
0.51 × VDDQ
pdf: 09005aef80739fa5, source: 09005aef807397e5
DD16C32_64_128_256x64AG.fm - Rev. C 9/04 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2004 Micron Technology, Inc.
13
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