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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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EM68932DVKB датащи(PDF) 18 Page - Etron Technology, Inc. |
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EM68932DVKB датащи(HTML) 18 Page - Etron Technology, Inc. |
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18 / 40 page  EtronTech EM68932DVKB Etron Confidential 18 Rev. 1.0 Aug. 2009 Table 16. Recommended A.C. Operating Conditions (VDD=1.7V~1.95V, TA =-25~85°C) Parameter Symbol Min. Max. Unit Note Input High Voltage (AC) VIH (AC) 0.8 x VDDQ VDDQ+0.3 V 1 Input Low Voltage (AC) VIL (AC) -0.3 0.2 x VDDQ V 1 Input Crossing Point Voltage, CK and CK inputs VIX (AC) 0.4 x VDDQ 0.6 x VDDQ V 2 Note: 1. These parameters should be tested at the pin on actual components and may be checked at either the pin or the pad in simulation. 2. The value of VIX is expected to equal 0.5 x VDDQ of the transmitting device and must track variation in the DC level of the same. Table 17. LVCMOS Interface Reference Level of Output Signals 0.5 x VDDQ Output Load Reference to the Test Load Input Signal Levels (VIH/ VIL) 0.8 x VDDQ / 0.2 x VDDQ Input Signals Slew Rate 1 V/ns Reference Level of Input Signals 0.5 x VDDQ Figure 4. LVCMOS A.C. Test Load Output Z0=50Ω 50Ω 20pF 0.5 x VDDQ |
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