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EDJ8232B5MB Datasheet(PDF) 25 Page - Elpida Memory |
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EDJ8232B5MB Datasheet(HTML) 25 Page - Elpida Memory |
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25 / 142 page  EDJ8232B5MB Data Sheet E1825E30 (Ver. 3.0) 25 Output Driver DC Electrical Characteristics (RZQ = 240 , entire operating temperature range; after proper ZQ calibration) RONnom Resistor VOUT min. nom. max. Unit Notes 40 RON40Pd VOL (DC) = 0.2 × VDDQ VOM (DC) = 0.5 × VDDQ VOH (DC) = 0.8 × VDDQ 0.6 0.9 0.9 1.0 1.0 1.0 1.1 1.1 1.4 RZQ/6 1, 2, 3 RON40Pu VOL (DC) = 0.2 × VDDQ VOM (DC) = 0.5 × VDDQ VOH (DC) = 0.8 × VDDQ 0.9 0.9 0.6 1.0 1.0 1.0 1.4 1.1 1.1 RZQ/6 1, 2, 3 34 RON34Pd VOL (DC) = 0.2 × VDDQ VOM (DC) = 0.5 × VDDQ VOH (DC) = 0.8 × VDDQ 0.6 0.9 0.9 1.0 1.0 1.0 1.1 1.1 1.4 RZQ/7 1, 2, 3 RON34Pu VOL (DC) = 0.2 × VDDQ VOM (DC) = 0.5 × VDDQ VOH (DC) = 0.8 × VDDQ 0.9 0.9 0.6 1.0 1.0 1.0 1.4 1.1 1.1 RZQ/7 1, 2, 3 Mismatch between pull-up and pull down, MMPuPd VOM (DC) = 0.5 × VDDQ 10 +10 % 1, 2, 4 Notes: 1. The tolerance limits are specified after calibration with stable voltage and temperature. For the behavior of the tolerance limits if temperature or voltage changes after calibration, see following section on voltage and temperature sensitivity. 2. The tolerance limits are specified under the condition that VDDQ = VDD and that VSSQ = VSS. 3. Pull-down and pull-up output driver impedances are recommended to be calibrated at 0.5 VDDQ. Other calibration schemes may be used to achieve the linearity spec shown above, e.g. calibration at 0.2 × VDDQ and 0.8 VDDQ. 4. Measurement definition for mismatch between pull-up and pull-down, MMPuPd: Measure RONPu and RONPd, both at 0.5 VDDQ: 100 RONnom RONPd - RONPu MMPuPd Output Driver Temperature and Voltage Sensitivity If temperature and/or voltage change after calibration, the tolerance limits widen according to the table Output Driver Sensitivity Definition and Output Driver Voltage and Temperature Sensitivity. T = T T (@calibration); V= VDDQ VDDQ (@calibration); VDD = VDDQ Note: dRONdT and dRONdV are not subject to production test but are verified by design and characterization. [Output Driver Sensitivity Definition] min max unit RONPu@VOH (DC) 0.6 dRONdTH |ΔT| dRONdVH |ΔV| 1.1 + dRONdTH |ΔT| + dRONdVH |ΔV| RZQ/7 RON@ VOM (DC) 0.9 dRONdTM |ΔT| dRONdVM |ΔV| 1.1 + dRONdTM |ΔT| + dRONdVM |ΔV| RZQ/7 RONPd@VOL (DC) 0.6 dRONdTL |ΔT| dRONdVL |ΔV| 1.1 + dRONdTL |ΔT| + dRONdVL |ΔV| RZQ/7 [Output Driver Voltage and Temperature Sensitivity] DDR3-1600 DDR3-1333 min. max. max. Unit dRONdTM 0 1.5 1.5 %/ C dRONdVM 0 0.13 0.15 %/mV dRONdTL 0 1.5 1.5 %/ C dRONdVL 0 0.13 0.15 %/mV dRONdTH 0 1.5 1.5 %/ C dRONdVH 0 0.13 0.15 %/mV |
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