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TC74HC237AF Scheda tecnica(PDF) 5 Page - Toshiba Semiconductor |
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TC74HC237AF Scheda tecnica(HTML) 5 Page - Toshiba Semiconductor |
5 / 9 page TC74HC237AP/AF 2007-10-01 5 AC Characteristics (CL = 15 pF, VCC = 5 V, Ta = 25°C, input: tr = tf = 6 ns) Characteristics Symbol Test Condition Min Typ. Max Unit Output transition time tTLH tTHL ⎯ ⎯ 4 8 ns Propagation delay time (G1-Y) tpLH tpHL ⎯ ⎯ 12 24 ns Propagation delay time ( 2 G -Y) tpLH tpHL ⎯ ⎯ 12 24 ns Propagation delay time ( GL -Y) tpLH tpHL ⎯ ⎯ 17 33 ns Propagation delay time (A, B, C-Y) tpLH tpHL ⎯ ⎯ 15 31 ns AC Characteristics (CL = 50 pF, input: tr = tf = 6 ns) Test Condition Ta = 25°C Ta = −40~85°C Characteristics Symbol VCC (V) Min Typ. Max Min Max Unit Output transition time tTLH tTHL ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 30 8 7 75 15 13 ⎯ ⎯ ⎯ 95 19 16 ns Propagation delay time (G1-Y) tpLH tpHL ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 45 15 13 140 28 24 ⎯ ⎯ ⎯ 175 35 30 ns Propagation delay time ( 2 G-Y) tpLH tpHL ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 45 15 13 140 28 24 ⎯ ⎯ ⎯ 175 35 30 ns Propagation delay time ( GL -Y) tpLH tpHL ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 65 21 18 190 38 32 ⎯ ⎯ ⎯ 240 48 41 ns Propagation delay time (A, B, C-Y) tpLH tpHL ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 60 19 16 180 36 31 ⎯ ⎯ ⎯ 225 45 38 ns Input capacitance CIN ⎯ ⎯ 5 10 ⎯ 10 pF Power dissipation capacitance CPD (Note) ⎯ ⎯ 52 ⎯ ⎯ ⎯ 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 |
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