
Electrical Specifications
Stresses greater than those listed may cause permanent damage to the module. This is a
stress rating only, and functional operation of the module at these or any other condi-
tions outside those indicated in each device’s data sheet is not implied. Exposure to
absolute maximum rating conditions for extended periods may adversely affect reliability.
Table 8: Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Units
VDD
VDD supply voltage relative to VSS
–0.4
+1.975
V
VIN, VOUT
Voltage on any pin relative to VSS
–0.4
+1.975
V
Table 9: Operating Conditions
Symbol Parameter
Min
Nom
Max
Units Notes
VDD
VDD supply voltage
1.283
1.35
1.45
V
VREFCA(DC) Input reference voltage command/address bus
0.49 × VDD
0.5 × VDD
0.51 × VDD
V
VREFDQ(DC) I/O reference voltage DQ bus
0.49 × VDD
0.5 × VDD
0.51 × VDD
V
IVTT
Termination reference current from VTT
–600
–
+600
mA
VTT
Termination reference voltage (DC) – com-
mand/address bus
0.49 × VDD - 20mV 0.5 × VDD 0.51 × VDD + 20mV
V
II
Input leakage current;
Any input 0V
≤ VIN ≤
VDD; VREF input 0V ≤ VIN
≤ 0.95V (All other pins
not under test = 0V)
Address inputs, RAS#,
CAS#, WE#, BA
–TBD
TBD
+TBD
A
S#, CKE, ODT, CK, CK#
–TBD
TBD
+TBD
DM
–2
0
+2
IOZ
Output leakage cur-
rent; 0V
≤ VOUT ≤ VDD;
DQ and ODT are disa-
bled; ODT is HIGH
DQ, DQS, DQS#
–2
0
+2
A
IVREF
VREF supply leakage current;
VREFDQ = VDD/2 or VREFCA = VDD/2
(All other pins not under test = 0V)
–9
0
+9
A
TA
Module ambient
operating temperature
Commercial
0
–
+70
°C
TC
DDR3 SDRAM compo-
nent case operating
temperature
Commercial
0
–
+85
°C
Notes: 1. VTT termination voltage in excess of the stated limit will adversely affect the command
and address signals’ voltage margin and will reduce timing margins.
2. TA and TC are simultaneous requirements.
3. For further information, refer to technical note TN-00-08: “Thermal Applications,”
available on Micron’s Web site.
4. The refresh rate is required to double when 85°C < TC ≤ 95°C.
1GB, 2GB (x72 SR) 240-Pin Halogen-Free 1.35V DDR3 RDIMM
Electrical Specifications
PDF: 09005aef83c0f177
kdf9c128_256x72pz.pdf – Rev. A 08/09
11
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.