46DR83200A Datasheet, PDF (7/48 Pages) Integrated Silicon Solution, Inc – 32Mx8, 16Mx16 DDR2 DRAM

IS43/46DR83200A, IS43/46DR16160A
ELECTRICAL SPECIFICATIONS
Absolute Maximum DC Ratings
Symbol
Vdd
Vddq
Vddl
Vin, Vout
Tstg
Parameter
Voltage on VDD pin relative to Vss
Voltage on VDDQ pin relative to Vss
Voltage on VDDL pin relative to Vss
Voltage on any pin relative to Vss
Storage Temperature
Rating
- 1.0 V ~ 2.3 V
- 0.5 V ~ 2.3 V
- 0.5 V ~ 2.3 V
- 0.5 V ~ 2.3 V
-55 to +150
Units
V
V
V
V
°C
Notes
1,3
1,3
1,3
1,4
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. 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 and
VDDL are less than 500 mV, Vref may be equal to or less than 300 mV.
4. Voltage on any input or I/O may not exceed voltage on VDDQ.
AC & DC Recommended Operating Conditions
Recommended DC Operating Conditions (SSTL-1.8)
Symbol Parameter
Rating
Units Notes
Min.
Typ.
Max.
VDD
Supply Voltage
1.7
1.8
1.9
V1
VDDL Supply Voltage for DLL
1.7
1.8
1.9
V5
VDDQ Supply Voltage for Output
1.7
1.8
1.9
V 1, 5
VREF Input Reference Voltage 0.49 x VDDQ 0.50 x VDDQ 0.51 x VDDQ V 2. 3
VTT
Termination Voltage
VREF - 0.04
VREF
VREF + 0.04 V 4
Notes:
1. There is no specific device VDD supply voltage requirement for SSTL_18 compliance. However under all conditions VDDQ must be less than
or equal to VDD.
2. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the value of VREF is expected to be
about 0.5 x VDDQ of the transmitting device and VREF is expected to track variations in VDDQ.
3. Peak to peak ac noise on VREF may not exceed +/-2 % VREF(dc).
4. VTT of transmitting device must track VREF of receiving device.
5. VDDQ tracks with VDD, VDDL tracks with VDD. AC parameters are measured with VDD, VDDQ and VDDL tied together
Integrated Silicon Solution, Inc. — www.issi.com
7
Rev. D
08/16/2012