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TC74VHCT240AF Datasheet(PDF) 5 Page - Toshiba Semiconductor |
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TC74VHCT240AF Datasheet(HTML) 5 Page - Toshiba Semiconductor |
5 / 9 page TC74VHCT240,244AF/AFT/AFK 2007-10-01 5 AC Characteristics (input: tr = tf = 3 ns) Test Condition Ta = 25°C Ta = −40 to 85°C Characteristics Symbol VCC (V) CL (pF) Min Typ. Max Min Max Unit 15 ⎯ 5.6 7.8 1.0 9.0 Propagation delay time (TC74VHCT240A) tpLH tpHL ⎯ 5.0 ± 0.5 50 ⎯ 6.1 8.8 1.0 10.0 ns 15 ⎯ 5.4 7.4 1.0 8.5 Propagation delay time (TC74VHCT244A) tpLH tpHL ⎯ 5.0 ± 0.5 50 ⎯ 5.9 8.4 1.0 9.5 ns 15 ⎯ 7.7 10.4 1.0 12.0 3-state output enable time tpZL tpZH RL = 1 kΩ 5.0 ± 0.5 50 ⎯ 8.2 11.4 1.0 13.0 ns 3-state output disable time tpLZ tpHZ RL = 1 kΩ 5.0 ± 0.5 50 ⎯ 8.8 11.4 1.0 13.0 ns Output to output skew tosLH tosHL (Note 1) 5.0 ± 0.5 50 ⎯ ⎯ 1.0 ⎯ 1.0 ns Input capacitance CIN ⎯ ⎯ 4 10 ⎯ 10 pF Output capacitance COUT ⎯ ⎯ 9 ⎯ ⎯ ⎯ pF TC74VHCT240A ⎯ 19 ⎯ ⎯ ⎯ Power dissipation capacitance (Note 2) CPD TC74VHCT244A ⎯ 18 ⎯ ⎯ ⎯ pF Note 1: Parameter guaranteed by design. tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn| Note 2: 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) Noise Characteristics (input: tr = tf = 3 ns) Test Condition Ta = 25°C Characteristics Symbol VCC (V) Typ. Limit Unit Quiet output maximum dynamic VOL VOLP CL = 50 pF 5.0 0.8 1.0 V Quiet output minimum dynamic VOL VOLV CL = 50 pF 5.0 −0.8 −1.0 V Minimum high level dynamic input voltage VIHD CL = 50 pF 5.0 ⎯ 2.0 V Maximum low level dynamic input voltage VILD CL = 50 pF 5.0 ⎯ 0.8 V |
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