K4N51163QC-ZC Datasheet, PDF (7/64 Pages) Samsung semiconductor – 512Mbit gDDR2 SDRAM

K4N51163QC-ZC
512M gDDR2 SDRAM
7.0 ABSOLUTE MAXIMUM DC RATINGS
Symbol
Parameter
Rating
Units Notes
VDD
Voltage on VDD pin relative to Vss
- 1.0 V ~ 2.3 V
V
1
VDDQ Voltage on VDDQ pin relative to Vss
- 0.5 V ~ 2.3 V
V
1
VDDL
Voltage on VDDL pin relative to Vss
- 0.5 V ~ 2.3 V
V
1
V_IN, V_OUT Voltage on any pin relative to Vss
- 0.5 V ~ 2.3 V
V
1
T_STG
Storage Temperature
-55 to +100
°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.
8.0 AC & DC OPERATING CONDITIONS
8.1 Recommended DC Operating Conditions (SSTL - 1.8)
Symbol
VDD
Parameter
Supply Voltage
Min.
1.7
Rating
Typ.
1.8
Max.
1.9
Units
V
Notes
VDDL
Supply Voltage for DLL
1.7
1.8
1.9
V
4
VDDQ
Supply Voltage for Output
1.7
1.8
1.9
V
4
VREF
Input Reference Voltage
0.49*VDDQ 0.50*VDDQ 0.51*VDDQ
mV
1,2
VTT
Termination Voltage
VREF-0.04
VREF
VREF+0.04
V
3
Note : There is no specific device VDD supply voltage requirement for SSTL-1.8 compliance. However under all conditions VDDQ must be less than or
equal to VDD.
1. 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.
2. Peak to peak AC noise on VREF may not exceed +/-2% VREF(DC).
3. VTT of transmitting device must track VREF of receiving device.
4. AC parameters are measured with VDD, VDDQ and VDDDL tied together.
8.2 Operating Temperature Condition
Symbol
TOPER
Parameter
Operating Temperature
Rating
0 to 95
Units
°C
Note
1, 2, 3
Note :
1. Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to
JESD51.2 standard.
2. At 0 - 85 °C, operation temperature range are the temperature which all DRAM specification will be supported.
3. At 85 - 95 °C operation temperature range, doubling refresh commands in frequency to a 32ms period ( tREFI=3.9 us ) is required, and to enter to self
refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
8.3 Input DC & AC Logic Level
Input DC Logic Level
Symbol
Parameter
V_IH(DC)
DC input logic high
V_IL(DC)
DC input logic low
Min.
V_REF + 0.125
V_DDQ - 0.3
Max.
V_DDQ + 0.3
V_REF - 0.125
Units
V
V
Note
Input AC Logic Level
Symbol
V_IH(AC)
V_IL(AC)
Parameter
AC input logic high
AC input logic low
Min.
V_REF + 0.250
-
Max.
-
V_REF - 0.250
Units
V
V
Note
-7-
Rev 1.5 Oct. 2005