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M393B1K73DH0 Datasheet, PDF (22/56 Pages) Samsung semiconductor – 240pin Registered DIMM
◁
Registered DIMM
datasheet
Rev. 1.3
DDR3 SDRAM
11. Absolute Maximum Ratings
11.1 Absolute Maximum DC Ratings
Symbol
VDD
VDDQ
VIN, VOUT
TSTG
Parameter
Voltage on VDD pin relative to VSS
Voltage on VDDQ pin relative to VSS
Voltage on any pin relative to VSS
Storage Temperature
Rating
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-55 to +100
Units
V
V
V
°C
NOTE
1,3
1,3
1
1, 2
NOTE :
1. 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.
2. Storage Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51-2 standard.
3. VDD and VDDQ must be within 300mV of each other at all times; and VREF must be not greater than 0.6 x VDDQ, When VDD and VDDQ are less than 500mV; VREF may be
equal to or less than 300mV.
11.2 DRAM Component Operating Temperature Range
Symbol
TOPER
Parameter
Operating Temperature Range
rating
0 to 95
Unit
NOTE
°C
1, 2, 3
NOTE :
1. Operating Temperature TOPER is the case surface temperature on the center/top side of the DRAM. For measurement conditions, please refer to the JEDEC document
JESD51-2.
2. The Normal Temperature Range specifies the temperatures where all DRAM specifications will be supported. During operation, the DRAM case temperature must be main-
tained between 0-85°C under all operating conditions
3. Some applications require operation of the Extended Temperature Range between 85°C and 95°C case temperature. Full specifications are guaranteed in this range, but the
following additional conditions apply:
a) Refresh commands must be doubled in frequency, therefore reducing the refresh interval tREFI to 3.9us.
b) If Self-Refresh operation is required in the Extended Temperature Range, then it is mandatory to either use the Manual Self-Refresh mode with Extended Temperature
Range capability (MR2 A6 = 0b and MR2 A7 = 1b), in this case IDD6 current can be increased around 10~20% than normal Temperature range.
12. AC & DC Operating Conditions
12.1 Recommended DC Operating Conditions (SSTL-15)
Symbol
VDD
VDDQ
Parameter
Supply Voltage
Supply Voltage for Output
Min.
1.425
1.425
NOTE:
1. Under all conditions VDDQ must be less than or equal to VDD.
2. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.
Rating
Typ.
1.5
1.5
Max.
1.575
1.575
Units
V
V
NOTE
1,2
1,2
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