Rev. 1.01
K4B2G0446D
K4B2G0846D
datasheet
DDR3L SDRAM
6. Absolute Maximum Ratings
6.1 Absolute Maximum DC Ratings
[ Table 4 ] Absolute Maximum DC Ratings
Symbol
Parameter
Rating
Units
NOTE
VDD
Voltage on VDD pin relative to Vss
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-55 to +100
V
1,3
VDDQ
Voltage on VDDQ pin relative to Vss
Voltage on any pin relative to Vss
Storage Temperature
V
V
1,3
1
V
IN, VOUT
TSTG
°C
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. V and V
must be within 300mV of each other at all times;and V
must be not greater than 0.6 x V
, When V and V
are less than 500mV; V
may be
DD
DDQ
REF
DDQ
DD
DDQ
REF
equal to or less than 300mV.
6.2 DRAM Component Operating Temperature Range
[ Table 5 ] Temperature Range
Symbol
Parameter
rating
Unit
NOTE
TOPER
Operating Temperature Range
0 to 95
°C
1, 2, 3
NOTE :
1. Operating Temperature T
JESD51-2.
is the case surface temperature on the center/top side of the DRAM. For measurement conditions, please refer to the JEDEC document
OPER
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 = 0 and MR2 A7 = 1 ), in this case IDD6 current can be increased around 10~20% than normal Temperature range.
b
b
7. AC & DC Operating Conditions
7.1 Recommended DC operating Conditions (SSTL_1.5)
[ Table 6 ] Recommended DC Operating Conditions
Rating
Typ.
1.35
1.5
Symbol
VDD
Parameter
Supply Voltage
Operation Voltage
Units
Notes
Min.
1.283
1.425
1.283
1.425
Max.
1.45
1.35V
1.5V
V
V
V
V
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1.575
1.45
1.35V
1.5V
1.35
1.5
VDDQ
Supply Voltage for Output
1.575
NOTE :
1. Under all conditions V
must be less than or equal to V
.
DDQ
DD
2. V
tracks with V . AC parameters are measured with V and V
tied together.
DDQ
DD
3. VDDDDQ& VDDQ rating are determined by operation voltDaDge.
- 11 -
SAMSUNG [ SAMSUNG ]
