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HD74LS74ARPEL Datasheet(PDF) 3 Page - Renesas Technology Corp |
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HD74LS74ARPEL Datasheet(HTML) 3 Page - Renesas Technology Corp |
3 / 8 page HD74LS74A Rev.3.00, Jul.22.2005, page 3 of 7 Electrical Characteristics (Ta = –20 to +75 °C) Item Symbol min. typ.* max. Unit Condition VIH 2.0 — — V Input voltage VIL — — 0.8 V VOH 2.7 — — V VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V, IOH = –400 µA — — 0.5 IOL = 8 mA Output voltage VOL — — 0.4 V IOL = 4 mA VCC = 4.75 V, VIL = 0.8 V, VIH = 2 V D — — 20 Clear — — 40 Preset — — 40 Clock IIH — — 20 µA VCC = 5.25 V, VI = 2.7 V D — — –0.4 Clear — — –0.8 Preset — — –0.8 Clock IIL — — –0.4 mA VCC = 5.25 V, VI = 0.4 V D — — 0.1 Clear — — 0.2 Preset — — 0.2 Input current Clock II — — 0.1 mA VCC = 5.25 V, VI = 7 V Short-circuit output current IOS –20 — –100 mA VCC = 5.25 V Supply current ICC** — 4 8 mA VCC = 5.25 V Input clamp voltage VIR — — –1.5 V VCC = 4.75 V, IIN = –18 mA Notes: * VCC = 5 V, Ta = 25°C ** With all output open, ICC is measured with the Q and Q outputs high in turn. At the time of measurement, the clock input is grounded. Switching Characteristics (VCC = 5 V, Ta = 25°C) Item Symbol Inputs Outputs min. typ. max. Unit Condition Maximum clock frequency fmax 25 33 MHz tPLH — 13 25 ns Propagation delay time tPHL Clear, Clock or Preset Q, Q — 25 40 ns CL = 15 pF, RL = 2 k Ω Timing Definition Data Clock 0 V 3 V 0 V 3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V "H" Data "L" Data tw tsu th tsu th |
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