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
V
DD
V
DD
supply voltage relative to V
SS
–0.4 1.975 V
V
IN
, V
OUT
Voltage on any pin relative to V
SS
–0.4 1.975 V
Table 9: Operating Conditions
Symbol Parameter Min Nom Max Units Notes
V
DD
V
DD
supply voltage 1.283 1.35 1.45 V
1.425 1.5 1.575 V 1
I
VTT
Termination reference current from V
TT
–600
–
600 mA
V
TT
Termination reference voltage – command address bus 0.49 x V
DD
0.5 x V
DD
0.51 x V
DD
V 2
I
I
Input leakage current;
Any input 0V ≤ V
IN
≤ V
DD
;
V
REF
input 0V ≤ V
IN
≤ 0.95V
(All other pins not under test = 0V)
Address inputs
RAS#, CAS#,
WE#, BA
–32 0 32 µA
S#, CKE, ODT,
CK, CK#
–16 0 16
DM –4 0 4
I
OZ
Output leakage current;
0V ≤ V
OUT
≤ V
DDQ
; DQs and ODT are
disabled
DQ, DQS, DQS# –10 0 10 µA
I
VREF
V
REF
supply leakage current; V
REF
= V
DD
/2 or V
REFCA
=
V
DD
/2 (All other pins not under test = 0V)
–16 0 16 µA
T
A
Module ambient operating tempera-
ture
Commercial 0
–
70 °C 3, 4
T
C
DDR3 SDRAM component case oper-
ating temperature
Commercial 0
–
95 °C 3, 4, 5
Notes:
1. Module is backward-compatible with 1.5V operation. Refer to device specification for
details and operation guidance.
2. V
TT
termination voltage in excess of the stated limit will adversely affect the command
and address signals’ voltage margin and will reduce timing margins.
3. T
A
and T
C
are simultaneous requirements.
4. For further information, refer to technical note TN-00-08: ”Thermal Applications,”
available on Micron’s Web site.
5.
The refresh rate is required to double when 85°C < T
C
≤ 95°C.
2GB, 4GB (x64, DR) 240-Pin 1.35V DDR3L UDIMM
Electrical Specifications
PDF: 09005aef8413b620
ktf16c256_512x64az.pdf – Rev. E 5/11 EN
10
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2010 Micron Technology, Inc. All rights reserved.
