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74LCX07TTR Datasheet(PDF) 4 Page - STMicroelectronics |
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74LCX07TTR Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 11 page 74LCX07 4/11 Table 8: AC Electrical Characteristics 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch- ing in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|) 2) Parameter guaranteed by design Table 9: Capacitive Characteristics 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per gate) Figure 3: Test Circuit CL = 50 pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) Symbol Parameter Test Condition Value Unit VCC (V) CL (pF) RL ( Ω) ts = tr (ns) -40 to 85 °C -55 to 125 °C Min. Max. Min. Max. tPLZ Propagation Delay Time 2.7 50 500 2.5 7.0 7.0 ns 3.0 to 3.6 1.0 5.2 1.0 5.2 tPZL Propagation Delay Time 2.7 50 500 2.5 7.0 7.0 ns 3.0 to 3.6 1.0 5.2 1.0 5.2 tOSLH tOSHL Output To Output Skew Time (note1, 2) 3.0 to 3.6 50 500 2.5 1.0 1.0 ns Symbol Parameter Test Condition Value Unit VCC (V) TA = 25 °C Min. Typ. Max. CIN Input Capacitance 3.3 VIN = 0 to VCC 6pF COUT Output Capacitance 3.3 VIN = 0 to VCC 14 pF CPD Power Dissipation Capacitance (note 1) 3.3 fIN = 10MHz VIN = 0 or VCC 4.3 pF TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6V tPZH, tPHZ GND |
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