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430 データシート(PDF) 30 Page - Intel Corporation |
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430 データシート(HTML) 30 Page - Intel Corporation |
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30 / 100 page ![]() Electrical Specifications 30 Datasheet 2.8.4 BCLK[1:0] Specifications (CK505 based Platforms) 1. Unless otherwise noted, all specifications in this table apply to all processor frequencies. 2. Crossing voltage is defined as the instantaneous voltage value when the rising edge of BCLK0 equals the falling edge of BCLK1. 3. V Havg is the statistical average of the VH measured by the oscilloscope. 4. "Steady state" voltage, not including overshoot or undershoot. 5. Overshoot is defined as the absolute value of the maximum voltage. Undershoot is defined as the absolute value of the minimum voltage. 6. Measurement taken from differential waveform. 7. The crossing point must meet the absolute and relative crossing point specifications simultaneously. 8. Cpad includes die capacitance only. No package parasitics are included. Table 17. Front Side Bus Differential BCLK Specifications Symbol Parameter Min Typ Max Unit Figure Notes1 V L Input Low Voltage -0.30 N/A N/A V 3 4 V H Input High Voltage N/A N/A 1.15 V 3 4 V CROSS(abs) Absolute Crossing Point 0.300 N/A 0.550 V 3, 4 2,4,6 ΔV CROSS Range of Crossing Points N/A N/A 0.140 V 3, 4 - V OS Overshoot N/A N/A 1.4 V 3 5 V US Undershoot -0.300 N/A N/A V 3 5 V SWING Differential Output Swing 0.300 N/A N/A V 5 6 ILI Input Leakage Current -5 N/A 5 μA Cpad Pad Capacitance .95 1.2 1.45 pF 8 Figure 3. Differential Clock Waveform High Time Period V CROSS CLK 1 CLK 0 Low Time VCROSS Min 300 mV VCROSS Max 500 mV median V CROSS median V CROSS Median + 75 mV Median - 75 mV V CROSS |
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