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HYMP125U72CP8-C4 Datasheet(PDF) 11 Page - Hynix Semiconductor |
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HYMP125U72CP8-C4 Datasheet(HTML) 11 Page - Hynix Semiconductor |
11 / 29 page Rev. 0.6 / Jul. 2008 11 1240pin DDR2 SDRAM Unbuffered DIMMs ABSOLUTE MAXIMUM RATINGS Operation Conditions and Environmental Parameters Note : 1. Stress greater than those listed may cause permanent damage to the device. This is a stress rating only, and device functional operation at or above the conditions indicated is not implied. Expousure to absolute maximum rating con ditions for extended periods may affect reliablility. 2. Up to 9850 ft. 3. If the DRAM case temperature is Above 85oC, the Auto-Refresh command interval has to be reduced to tREFI=3.9us. For Measurement conditions of TCASE, please refer to the JEDEC document JESD51-2. DC OPERATING CONDITIONS (SSTL_1.8) Note: 1. Min. Typ. and Max. values increase by 100mV for C3(DDR2-533 3-3-3) speed option. 2. VDDQ tracks with VDD,VDDL tracks with VDD. AC parameters are measured with VDD,VDDQ and VDD. 3. 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 vari- ations in VDDQ. 4. Peak to peak ac noise on VREF may not exceed +/-2% VREF (dc). 5. VTT of transmitting device must track VREF of receiving device. Parameter Symbol Value Unit Note Voltage on VDD pin relative to Vss VDD - 1.0 ~ 2.3 V 1 Voltage on VDDQ pin relative to Vss VDDQ - 0.5 ~ 2.3 V 1 Voltage on any pin relative to Vss VIN, VOUT - 0.5 ~ 2.3 V 1 Parameter Symbol Rating Units Notes DIMM Operating temperature(ambient) TOPR 0 ~ +55 oC Storage Temperature TSTG -50 ~ +100 oC 1 Storage Humidity(without condensation) HSTG 5 to 95 % 1 DIMM Barometric Pressure(operating & storage) PBAR 105 to 69 K Pascal 2 DRAM Component Case Temperature Range TCASE 0 ~+95 oC3 Symbol Parameter Rating Units Notes Min. Typ. Max. VDD Supply Voltage 1.7 1.8 1.9 V 1 VDDL Supply Voltage for DLL 1.7 1.8 1.9 V 1,2 VDDQ Supply Voltage for Output 1.7 1.8 1.9 V 1,2 VREF Input Reference Voltage 0.49*VDDQ 0.50*VDDQ 0.51*VDDQ mV 3,4 VTT Termination Voltage VREF-0.04 VREF VREF+0.04 V 5 VDDSPD EEPROM Supply Voltage 1.7 - 3.6 V |
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