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TC74ACT240P Datasheet(PDF) 4 Page - Toshiba Semiconductor |
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TC74ACT240P Datasheet(HTML) 4 Page - Toshiba Semiconductor |
4 / 8 page TC74ACT240,244P/F/FT 2007-10-01 4 Electrical Characteristics DC Characteristics Test Condition Ta = 25°C Ta = −40 to 85°C Characteristics Symbol VCC (V) Min Typ. Max Min Max Unit High-level input voltage VIH ― 4.5 to 5.5 2.0 ― ― 2.0 ― V Low-level input voltage VIL ― 4.5 to 5.5 ― ― 0.8 ― 0.8 V High-level output voltage VOH VIN = VIH or VIL IOH = −50 μA IOH = −24 mA IOH = −75 mA (Note) 4.5 4.5 5.5 4.4 3.94 ― 4.5 ― ― ― ― ― 4.4 3.80 3.85 ― ― ― V Low-level output voltage VOL VIN = VIH or VIL IOL = 50 μA IOL = 24 mA IOL = 75 mA (Note) 4.5 4.5 5.5 ― ― ― 0.0 ― ― 0.1 0.36 ― ― ― ― 0.1 0.44 1.65 V 3-state output off-state current IOZ VIN = VIH or VIL VOUT = VCC or GND 5.5 ― ― ±0.5 ― ±5.0 μA Input leakage current IIN VIN = VCC or GND 5.5 ― ― ±0.1 ― ±1.0 μA ICC VIN = VCC or GND 5.5 ― ― 8.0 ― 80.0 μA Quiescent supply current IC Per input: VIN = 3.4 V Other input: VCC or GND 5.5 ― ― 1.35 ― 1.5 mA Note: This spec indicates the capability of driving 50 Ω transmission lines. One output should be tested at a time for a 10 ms maximum duration. AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns) Test Condition Ta = 25°C Ta = −40 to 85°C Characteristics Symbol VCC (V) Min Typ. Max Min Max Unit Propagation delay time tpLH tpHL ― 5.0 ± 0.5 ― 5.7 8.0 1.0 9.0 ns Output enable time tpZL tpZH ― 5.0 ± 0.5 ― 6.0 9.0 1.0 10.5 ns Output disable time tpLZ tpHZ ― 5.0 ± 0.5 ― 5.9 8.5 1.0 10.0 ns Input capacitance CIN ― ― 5 10 ― 10 pF Output capacitance COUT ― ― 10 ― ― ― pF TC74ACT240 ― 25 ― ― ― Power dissipation capacitance CPD (Note) TC74ACT244 ― 29 ― ― ― pF Note: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD·VCC·fIN + ICC/8 (per bit) |
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