W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 99 -
10. ELECTRICAL CHARACTERISTICS
10.1 Absolute Maximum Ratings
PARAMETER
SYMBOL
RATING
UNIT
NOTES
Voltage on V
DD
pin relative to V
SS
V
DD
-0.4 ~ 1.975
V
1, 3
Voltage on V
DDQ
pin relative to V
SS
V
DDQ
-0.4 ~ 1.975
V
1, 3
Voltage on any pin relative to V
SS
V
IN
, V
OUT
-0.4 ~ 1.975
V
1
Storage Temperature
T
STG
-55 ~ 150
°C
1, 2
Notes:
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
DD
and V
DDQ
must be within 300 mV of each other at all times. V
REFDQ
and V
REFCA
must not greater than 0.6 x V
DDQ
.
When V
DD
and V
DDQ
are less than 500 mV, V
REFDQ
and V
REFCA
may be equal to or less than 300 mV.
10.2 Operating Temperature Condition
PARAMETER
SYMBOL
RATING
UNIT NOTES
Commercial operating temperature range (for -09/-11/-12/-15)
T
OPER
0 ~ 85
°C
1, 2
0 ~95
°C
1, 2, 4
Industrial operating temperature range (for 09I/11I/12I/15I)
T
OPER
-40 ~ 85
°C
1, 3
-40 ~ 95
°C
1, 3, 4
Industrial Plus operating temperature range (for 09J/11J/12J/15J)
T
OPER
-40 ~ 85
°C
1, 3
-40 ~ 105
°C
1, 3, 4
Notes:
1. Operating Temperature T
OPER
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. During operation, the DRAM case temperature must be maintained between 0 to 95°C for Commercial parts under all
specification parameters.
3. During operation, the DRAM case temperature must be maintained between -40 to 95°C for Industrial parts and -40 to 105°C
for Industrial Plus parts under all specification parameters.
4. Some applications require operation of the 85°C < T
CASE
≤ 105°C operating temperature. Full specifications are provided in
this range, but the following additional conditions apply:
(a) Refresh commands have to be doubled in frequency, therefore reducing the Refresh interval t
REFI
to 3.9 µS.
(b) If Self-Refresh operation is required in 85°C < T
CASE
≤ 105°C operating temperature range, than it is mandatory to
either use the Manual Self-Refresh mode with Extended Temperature Range capability (MR2 A6 = 0
b
and MR2 A7 = 1
b
)
or enable the Auto Self-Refresh mode (ASR) (MR2 A6 = 1
b
, MR2 A7 is don't care).
10.3 DC & AC Operating Conditions
10.3.1 Recommended DC Operating Conditions
SYM.
PARAMETER
MIN.
TYP.
MAX.
UNIT
NOTES
V
DD
Supply Voltage
1.283
1.35
1.45
V
1, 2
V
DDQ
Supply Voltage for Output
1.283
1.35
1.45
V
1, 2
R
ZQ
External Calibration Resistor connected
from ZQ ball to ground
237.6
240.0
242.4
Ω
3
Notes:
1. Under all conditions V
DDQ
must be less than or equal to V
DD
.
2. V
DDQ
tracks with V
DD
. AC parameters are measured with V
DD
and V
DDQ
tied together.
3. The external calibration resistor RZQ can be time-shared among DRAMs in special applications.