Datenblatt-Suchmaschine für elektronische Bauteile |
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TC74VHC221AF Datenblatt(PDF) 9 Page - Toshiba Semiconductor |
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TC74VHC221AF Datenblatt(HTML) 9 Page - Toshiba Semiconductor |
9 / 15 page TC74VHC123,221AF/AFN/AFT/AFK 2007-10-19 9 Timing Requirements (input: tr = tf = 3 ns) Test Condition Ta = 25°C Ta = −40 to 85°C Characteristics Symbol VCC (V) Typ. Limit Limit Unit Minimum pulse width tw (L) tw (H) ⎯ 3.3 ± 0.3 5.0 ± 0.5 ⎯ ⎯ 5.0 5.0 5.0 5.0 ns Minimum clear width ( CLR ) tw (L) ⎯ 3.3 ± 0.3 5.0 ± 0.5 ⎯ ⎯ 5.0 5.0 5.0 5.0 ns RX = 1 kΩ CX = 100 pF 3.3 ± 0.3 5.0 ± 0.5 60 39 ⎯ ⎯ ⎯ ⎯ ns Minimum retrigger time (Note) trr RX = 1 kΩ CX = 0.01 μF 3.3 ± 0.3 5.0 ± 0.5 1.5 1.2 ⎯ ⎯ ⎯ ⎯ μs Note: For TC74VHC123A only 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 ⎯ 13.4 20.6 1.0 24.0 3.3 ± 0.3 50 ⎯ 15.9 24.1 1.0 27.5 15 ⎯ 8.1 12.0 1.0 14.0 Propagation delay time ( A, B-Q, Q) tpLH tpHL ⎯ 5.0 ± 0.5 50 ⎯ 9.6 14.0 1.0 16.0 ns 15 ⎯ 14.5 22.4 1.0 26.0 3.3 ± 0.3 50 ⎯ 17.0 25.9 1.0 29.5 15 ⎯ 8.7 12.9 1.0 15.0 Propagation delay time ( CLR trigger-Q, Q ) tpLH tpHL ⎯ 5.0 ± 0.5 50 ⎯ 10.2 14.9 1.0 17.0 ns 15 ⎯ 10.3 15.8 1.0 18.5 3.3 ± 0.3 50 ⎯ 12.8 19.3 1.0 22.0 15 ⎯ 6.3 9.4 1.0 11.0 Propagation delay time ( CLR -Q, Q ) tpLH tpHL ⎯ 5.0 ± 0.5 50 ⎯ 7.8 11.4 1.0 13.0 ns 3.3 ± 0.3 ⎯ 160 240 ― 300 CX = 28 pF RX = 2 kΩ 5.0 ± 0.5 50 ⎯ 133 200 ― 240 ns 3.3 ± 0.3 90 100 110 90 110 CX = 0.01 μF RX = 10 kΩ 5.0 ± 0.5 50 90 100 110 90 110 μs 3.3 ± 0.3 0.9 1.0 1.1 0.9 1.1 Output pulse width twOUT CX = 0.1 μF RX = 10 kΩ 5.0 ± 0.5 50 0.9 1.0 1.1 0.9 1.1 ms Output pulse width error between circuits (in same package) ΔtwOUT ⎯ ⎯ ±1 ⎯ ⎯ ⎯ % Input capacitance CIN ⎯ ⎯ 4 10 ⎯ 10 pF Power dissipation capacitance CPD (Note) ⎯ 73 ⎯ ⎯ ⎯ 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’·Duty/100 + ICC/2 (per circuit) (I CC’: active supply current) (duty: %) |
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