AMS73CAG01808RA
Absolute Maximum DC Ratings
Symbol
VDD
Parameter
Rating
Units
V
Notes
1,3
1,3
1
Voltage on VDD pin relative to Vss
Voltage on VDDQ pin relative to Vss
Voltage on any pin relative to Vss
Storage Temperature
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-0.4 V ~ 1.975 V
-55 to +100
VDDQ
V
VIN, VOUT
TSTG
V
°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 indi-
cated 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.
Operating Temperature Condition
Symbol
Parameter
Rating
Units
Notes
TC
Operating case temperature
0 to +95
°C
1,2,3
NOTE :
1. Operating temperature is the case surface temperature on the center/top side of the DRAM.
2. The Normal Temperature Range specifies the temperatures where all DRAM specifications will be supported. During
operation, the DRAM case temperature must be maintained between 0°C to +85°C under all operating conditions.
3. Some applications require operation of the DRAM in 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 3.9μs.
(This double refresh requirement may not apply for some devices.)
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 bit [A6, A7] = [0, 1]) or enable the
optional Auto Self-Refresh mode (MR2 bit [A6, A7] = [1, 0]).
Recommended DC Operating Conditions
Rating
Symbol
VDD
Parameter
Supply voltage
Min.
1.425
1.425
Typ.
1.5
Max.
1.575
1.575
Units
Notes
1,2
V
V
VDDQ
Supply voltage for Output
1.5
1,2
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.
AMS73CAG01808RA Rev. 1.0 December 2010
13
AMS [ Advanced Monolithic Systems Ltd ]
