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TC74HC123AF Datasheet(PDF) 8 Page - Toshiba Semiconductor |
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TC74HC123AF Datasheet(HTML) 8 Page - Toshiba Semiconductor |
8 / 13 page TC74HC123AP/AF 2012-02-29 8 Timing Requirements (input: tr = tf = 6 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) ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 75 15 13 95 19 16 ns Minimum clear width tW (L) ⎯ 2.0 4.5 6.0 ⎯ ⎯ ⎯ 75 15 13 95 19 16 ns Rx = 1 kΩ Cx = 100 pF 2.0 4.5 6.0 325 108 78 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ns Minimum retrigger time trr Rx = 1 kΩ Cx = 0.01 μF 2.0 4.5 6.0 5.0 1.4 1.2 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ μs 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 ( A, B-Q, Q) tpLH tpHL ⎯ ⎯ 25 36 ns Propagation delay time ( CLR TRIGGER-Q, Q ) tpLH tpHL ⎯ ⎯ 26 41 ns Propagation delay time ( CLR -Q, Q) tpLH tpHL ⎯ ⎯ 16 27 ns |
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